CN109135811B - Method for improving liquid phase hydrogenation reaction efficiency - Google Patents
Method for improving liquid phase hydrogenation reaction efficiency Download PDFInfo
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- CN109135811B CN109135811B CN201811027281.4A CN201811027281A CN109135811B CN 109135811 B CN109135811 B CN 109135811B CN 201811027281 A CN201811027281 A CN 201811027281A CN 109135811 B CN109135811 B CN 109135811B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G49/00—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00
- C10G49/10—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00 with moving solid particles
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G49/00—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00
- C10G49/22—Separation of effluents
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Abstract
The invention relates to the technical field of petroleum production, in particular to a method for improving the efficiency of liquid phase hydrogenation reaction, which comprises the following steps: s1: preparing hydrogen, raw oil and a catalyst required by the reaction; s2: introducing the three materials prepared in the S1 into a liquid-phase hydrogenation mixer; s3: a water storage tank is arranged beside the liquid-phase hydrogenation mixer and is connected with a water pipe, when the reaction temperature of the liquid-phase hydrogenation mixer rises, the water pipe sprays water to the outer wall of the liquid-phase hydrogenation mixer for cooling, and a fan is arranged to blow air to the liquid-phase hydrogenation mixer for accelerating cooling; s4: after the liquid-phase hydrogenation mixer fully reacts, a product is obtained; according to the invention, the liquid-phase hydrogenation mixer is used, so that the hydrogen can be recycled, the waste of the hydrogen is reduced, and meanwhile, the temperature is reduced in the reaction process of the liquid-phase hydrogenation mixer, so that the oil-gas content in the gas is reduced during gas-liquid separation, and the reaction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of petroleum production, in particular to a method for improving the efficiency of liquid phase hydrogenation reaction.
Background
The existing hydrogenation technology is a three-phase reaction of hydrogen, raw oil and a catalyst in the reaction process, and the reactor form generally comprises a trickle bed, a boiling bed, an expansion bed, a countercurrent bed and the like.
In the process of dissolving hydrogen, the cross section of crude oil and hydrogen is small, so that the dissolving amount is limited, and the hydrogen and the crude oil move upwards along the same direction and cannot be dissolved; when the redundant hydrogen is recycled, a plurality of oil gas impurities can be carried. In view of the above, the present invention provides a method for improving the efficiency of liquid phase hydrogenation reaction, which has the following characteristics:
(1) according to the method for improving the efficiency of the liquid phase hydrogenation reaction, the liquid phase hydrogenation mixer is used, when crude oil enters the second box body, the crude oil can move upwards in the second box body, hydrogen can be discharged downwards through the exhaust mechanism, and the crude oil and the hydrogen are opposite in moving direction and mutually opposite in flushing, so that the hydrogen can be quickly dissolved in the crude oil.
(2) According to the method for improving the efficiency of the liquid phase hydrogenation reaction, the liquid phase hydrogenation mixer is used, the rotating motor can drive the exhaust ring to rotate, so that the exhaust head and the scraper plate are driven to rotate, the contact area of hydrogen and crude oil can be wider in the rotating process of the exhaust head, the scraper plate can drive the crude oil to stir and rotate, and the dissolving amount of the hydrogen is larger.
(3) According to the method for improving the efficiency of the liquid phase hydrogenation reaction, the liquid phase hydrogenation mixer is used, redundant hydrogen can be screened out through the waterproof breathable film, part of oil gas in the hydrogen can be separated out through the condensing mechanism, the purification of the redundant hydrogen is realized, the purified hydrogen can be discharged into the gas conveying pipe through the circulating mechanism, the cyclic utilization of the hydrogen is realized, and the waste of the hydrogen is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for improving the efficiency of liquid phase hydrogenation reaction, which uses a liquid phase hydrogenation mixer, when crude oil enters a second box body, the crude oil can move upwards in the second box body, and hydrogen can be discharged downwards through an exhaust mechanism; the rotary motor can drive the exhaust ring to rotate, so as to drive the exhaust head and the scraper plate to rotate, the contact surface of hydrogen and crude oil can be wider in the rotating process of the exhaust head, and the scraper plate can drive the crude oil to stir and rotate, so that the dissolving amount of the hydrogen is more; unnecessary hydrogen accessible waterproof ventilated membrane sieves out to part oil gas accessible condensing mechanism in the hydrogen separates, realizes the purification to unnecessary hydrogen, and the hydrogen accessible circulation mechanism after the purification discharges to in the gas transmission pipe, realizes the cyclic utilization to hydrogen, reduces the waste of hydrogen.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for increasing the efficiency of a liquid phase hydrogenation reaction, the method comprising the steps of:
s1: preparing hydrogen, raw oil and a catalyst required by the reaction;
s2: introducing the three materials prepared in the S1 into a liquid-phase hydrogenation mixer;
s3: a water storage tank is arranged beside the liquid-phase hydrogenation mixer and is connected with a water pipe, when the reaction temperature of the liquid-phase hydrogenation mixer rises, the water pipe sprays water to the outer wall of the liquid-phase hydrogenation mixer for cooling, and a fan is arranged to blow air to the liquid-phase hydrogenation mixer for accelerating cooling;
s4: after the liquid-phase hydrogenation mixer fully reacts, a product is obtained;
the method uses a liquid phase hydrogenation mixer, which comprises a first box body, a conveying pipe, a second box body, a liquid discharge mechanism, a gas-liquid separation mechanism, a water supply mechanism, a gas supply mechanism, an exhaust mechanism and a circulation mechanism; the conveying pipe and the second box body are arranged in the first box body, the conveying pipe is communicated with the second box body, and the second box body is used for mixing raw materials with hydrogen; the exhaust mechanism is arranged in the second box body and used for exhausting hydrogen, and the exhaust mechanism is communicated with the gas supply mechanism; the side wall of the second box body is communicated with the liquid discharge mechanism, and the liquid discharge mechanism is used for discharging saturated raw material liquid; the end part of the liquid discharge mechanism is communicated with the gas-liquid separation mechanism, and the gas-liquid separation mechanism is used for separating hydrogen and stock solution; the gas-liquid separation mechanism is communicated with the water supply mechanism, and the water supply mechanism is used for supplying cooling water to the gas-liquid separation mechanism; the gas-liquid separation mechanism is communicated to an outlet of the gas supply mechanism through the circulation mechanism, and the circulation mechanism is used for circulating the separated hydrogen to the gas supply mechanism.
Specifically, the conveying pipe is of a U-shaped structure, and the conveying pipe is communicated with the bottom surface of the second box body.
Specifically, the exhaust mechanism is located in the middle of the inside of the second box body and comprises a rotating motor, a support rod, an exhaust ring, a center box, a gas pipe, a scraper, an exhaust head and a movable joint, the rotating motor is located at the center line of the second box body, the support rod is symmetrically arranged on the side wall of the rotating motor, the support rod is fixedly connected with the inner wall of the second box body, the rotating motor is fixedly connected with the center box, the gas pipe is symmetrically communicated with the side wall of the center box, the exhaust ring is arranged at the end part of the gas pipe, the gas pipe is communicated with the exhaust ring, the center box and the exhaust ring are arranged at intervals and located at the same center, the scraper is fixed between the center box and the exhaust ring, and the exhaust head is distributed on the bottom surface of the exhaust ring in an annular array manner, the bottom surface of the center box is rotatably connected with the movable joint.
Specifically, air feed mechanism includes gas bomb, discharge valve and air supply pipe, the air supply pipe is the L type, the air supply pipe with the movable joint communicates each other, the air supply pipe with discharge valve communicates each other, discharge valve locates the top of gas bomb.
Specifically, the liquid discharge mechanism comprises a first liquid discharge pipe and a second liquid discharge pipe, the first liquid discharge pipe is communicated with the side wall of the top of the second box body, and the side wall of the first liquid discharge pipe is communicated with the second liquid discharge pipe.
Specifically, the gas-liquid separation mechanism includes a third box, a condensation mechanism, a pipe body, and a waterproof breathable film, the pipe body is communicated with an end of the second liquid discharge pipe, the waterproof breathable film is embedded in the pipe body, an area of the waterproof breathable film is the same as a sectional area of the pipe body, the third box is communicated with a bottom of the pipe body, the condensation mechanism is installed in the third box, the condensation mechanism includes an outer pipe, an inner pipe, and a cold water circulation chamber, the inner pipe is communicated with the pipe body, the inner pipe and the outer pipe are both spiral, the outer pipe is disposed outside the inner pipe, the cold water circulation chamber is sealed between the outer pipe and the inner pipe, and both ends of the inner pipe are open.
Specifically, circulation mechanism includes circulation trachea and check valve, the circulation trachea with the top lateral wall of third box communicates each other, the circulation trachea with the air supply pipe communicates each other, the circulation trachea with install the junction of air supply pipe the check valve.
Specifically, the water supply mechanism includes water tank and suction pump, the water tank with the suction pump communicates each other, the suction pump with the top lateral wall of cold water circulation room communicates each other, the bottom of cold water circulation room with the water tank communicates each other.
The invention has the beneficial effects that:
(1) according to the method for improving the efficiency of the liquid phase hydrogenation reaction, the liquid phase hydrogenation mixer is used, when crude oil enters the second box body, the crude oil can move upwards in the second box body, hydrogen can be discharged downwards through the exhaust mechanism, and the crude oil and the hydrogen are opposite in moving direction and mutually opposite in flushing, so that the hydrogen can be quickly dissolved in the crude oil.
(2) According to the method for improving the efficiency of the liquid phase hydrogenation reaction, the liquid phase hydrogenation mixer is used, the rotating motor can drive the exhaust ring to rotate, so that the exhaust head and the scraper plate are driven to rotate, the contact area of hydrogen and crude oil can be wider in the rotating process of the exhaust head, the scraper plate can drive the crude oil to stir and rotate, and the dissolving amount of the hydrogen is larger.
(3) According to the method for improving the efficiency of the liquid phase hydrogenation reaction, the liquid phase hydrogenation mixer is used, redundant hydrogen can be screened out through the waterproof breathable film, part of oil gas in the hydrogen can be separated out through the condensing mechanism, the purification of the redundant hydrogen is realized, the purified hydrogen can be discharged into the gas conveying pipe through the circulating mechanism, the cyclic utilization of the hydrogen is realized, and the waste of the hydrogen is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a two-phase mixer for liquid phase hydrogenation according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the connection structure inside the second casing shown in FIG. 1;
FIG. 3 is a schematic view of the exhaust mechanism shown in FIG. 2;
FIG. 4 is a schematic view of the exhaust mechanism shown in FIG. 3;
fig. 5 is a schematic structural diagram of the condensing mechanism shown in fig. 1.
In the figure: 1. the device comprises a first box body, a second box body, a delivery pipe, a second box body, a liquid discharging mechanism, a liquid discharging pipe, a first liquid discharging pipe, a second liquid discharging pipe, a gas-liquid separating mechanism, a third box body, a condensing mechanism, a second box body, a third box body, a cold water circulating chamber, a cold water pipe body, a waterproof and breathable film, a first box body, a second box body, a cold water supplying mechanism, a cold water tank, a cold water pump, a second box body, a cold water pump, a cold water supplying mechanism, a.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the method for improving the efficiency of liquid phase hydrogenation reaction according to the present invention comprises the following steps:
s1: preparing hydrogen, raw oil and a catalyst required by the reaction;
s2: introducing the three materials prepared in the S1 into a liquid-phase hydrogenation mixer;
s3: a water storage tank is arranged beside the liquid-phase hydrogenation mixer and is connected with a water pipe, when the reaction temperature of the liquid-phase hydrogenation mixer rises, the water pipe sprays water to the outer wall of the liquid-phase hydrogenation mixer for cooling, and a fan is arranged to blow air to the liquid-phase hydrogenation mixer for accelerating cooling;
s4: after the liquid-phase hydrogenation mixer fully reacts, a product is obtained;
the method uses a liquid phase hydrogenation mixer, which comprises a first box body 1, a delivery pipe 2, a second box body 3, a liquid discharge mechanism 4, a gas-liquid separation mechanism 5, a water supply mechanism 6, a gas supply mechanism 7, an exhaust mechanism 8 and a circulation mechanism 9; the conveying pipe 2 and the second box body 3 are arranged in the first box body 1, the conveying pipe 2 is communicated with the second box body 3, and the second box body 3 is used for mixing raw materials with hydrogen; the exhaust mechanism 8 is installed inside the second box body 3, the exhaust mechanism 8 is used for exhausting hydrogen, and the exhaust mechanism 8 is communicated with the gas supply mechanism 7; the side wall of the second box body 3 is communicated with the liquid discharge mechanism 4, and the liquid discharge mechanism 4 is used for discharging saturated raw material liquid; the end part of the liquid discharge mechanism 4 is communicated with the gas-liquid separation mechanism 5, and the gas-liquid separation mechanism 5 is used for separating hydrogen from stock solution; the gas-liquid separation mechanism 5 is communicated with the water supply mechanism 6, and the water supply mechanism 6 is used for supplying cooling water to the gas-liquid separation mechanism 5; the gas-liquid separation mechanism 5 is communicated to an outlet of the gas supply mechanism 7 through the circulation mechanism 9, and the circulation mechanism 9 is used for circulating the separated hydrogen to the gas supply mechanism 7.
Specifically, as shown in fig. 1, the conveying pipe 2 is of a U-shaped structure, and the conveying pipe 2 is communicated with the bottom surface of the second box 3; the transfer pipe 2 can move the crude oil from bottom to top.
Specifically, as shown in fig. 2, 3 and 4, the exhaust mechanism 8 is located in the middle of the inside of the second box 3, the exhaust mechanism 8 includes a rotary motor 81, a support rod 82, an exhaust ring 83, a center box 84, an air pipe 85, a scraper blade 86, an exhaust head 87 and a movable joint 88, the rotary motor 81 is located at the center line of the second box 3, the support rod 82 is symmetrically arranged on the side wall of the rotary motor 81, the support rod 82 is fixedly connected with the inner wall of the second box 3, the rotary motor 81 is fixedly connected with the center box 84, the air pipe 85 is symmetrically communicated with the side wall of the center box 84, the exhaust ring 83 is arranged at the end of the air pipe 85, the air pipe 85 is communicated with the exhaust ring 83, the center box 84 and the exhaust ring 83 are arranged at intervals and located at the same center, the scraper blade 86 is fixed between the center box 84 and the exhaust ring 83, the exhaust heads 87 are distributed on the bottom surface of the exhaust ring 83 in an annular array, and the movable joint 88 is rotatably connected to the bottom surface of the central box 84; gas can be discharged through each exhaust head 87, the coverage is wide, and the crude oil can be rotationally driven to rotate, so that the dissolving effect is better.
Specifically, as shown in fig. 2, the air supply mechanism 7 includes an air cylinder 71, an air outlet valve 72 and an air supply pipe 73, the air supply pipe 73 is L-shaped, the air supply pipe 73 is communicated with the movable joint 88, the air supply pipe 73 is communicated with the air outlet valve 72, and the air outlet valve 72 is disposed at the top of the air cylinder 71; the gas can be continuously discharged from top to bottom through the gas supply mechanism 7, so that the dissolving speed is accelerated.
Specifically, as shown in fig. 1, the liquid discharge mechanism 4 includes a first liquid discharge pipe 41 and a second liquid discharge pipe 42, the first liquid discharge pipe 41 is communicated with a top side wall of the second box 3, and the second liquid discharge pipe 42 is communicated with a side wall of the first liquid discharge pipe 41; the saturated crude oil can be discharged through the first drain pipe 41 and the second drain pipe 42.
Specifically, as shown in fig. 1, 2 and 5, the gas-liquid separation mechanism 5 includes a third tank 51, a condensation mechanism 52, a pipe body 53, and a waterproof permeable membrane 54, the pipe body 53 communicates with an end portion of the second liquid discharge pipe 42, the waterproof permeable membrane 54 is embedded in the pipe body 53, an area of the waterproof permeable membrane 54 is equal to a cross-sectional area of the pipe body 53, the third tank 51 communicates with a bottom portion of the pipe body 53, the condensation mechanism 52 is installed in the third tank 51, the condensation mechanism 52 includes an outer pipe 521, an inner pipe 522, and a cold water flow chamber 523, the inner pipe 522 communicates with the pipe body 53, the inner pipe 522 and the outer pipe 521 are both spiral, the outer pipe 521 is disposed outside the inner pipe 522, and the cold water flow chamber 523 is closed between the outer pipe 521 and the inner pipe 522, both ends of the inner tube 522 are open; the condensing mechanism 52 can condense the oil gas, so that the oil gas is converted into liquid for storage and collection, and the redundant gas can be discharged again.
Specifically, as shown in fig. 1, the circulation mechanism 9 includes a circulation air pipe 91 and a check valve 92, the circulation air pipe 91 is communicated with a top side wall of the third box 51, the circulation air pipe 91 is communicated with the air supply pipe 73, and the check valve 92 is installed at a connection position of the circulation air pipe 91 and the air supply pipe 73; the hydrogen can be re-introduced into the second tank 3 through the circulation gas pipe 91, thereby recovering the hydrogen, and the check valve 92 can prevent the hydrogen from re-flowing into the circulation gas pipe 91.
Specifically, as shown in fig. 1, the water supply mechanism 6 includes a water tank 61 and a water pump 62, the water tank 61 is communicated with the water pump 62, the water pump 62 is communicated with a top side wall of the cold water circulation chamber 523, and a bottom end of the cold water circulation chamber 523 is communicated with the water tank 61; the water pump 62 can pump out water, and rapid cooling of oil and gas is achieved.
When the crude oil enters the second box body 3, the crude oil moves upwards in the second box body 3, and the hydrogen can be discharged downwards through the exhaust mechanism 8; the rotating motor 81 can drive the exhaust ring 83 to rotate, so as to drive the exhaust head 87 and the scraper 86 to rotate, the contact surface of hydrogen and crude oil can be wider in the rotating process of the exhaust head 87, and the scraper 86 can drive the crude oil to stir and rotate, so that the dissolving amount of the hydrogen is more; unnecessary hydrogen can be sieved out through the waterproof breathable film 54, and part of oil gas in the hydrogen can be separated out through the condensing mechanism 52, so that the unnecessary hydrogen can be purified, the purified hydrogen can be discharged into the gas supply pipe 73 through the circulating mechanism 9, the hydrogen can be recycled, and the waste of the hydrogen is reduced. The method specifically comprises the following steps:
(1) during processing, crude oil is conveyed into the second box body 3 through the conveying pipe 2, when the crude oil enters the second box body 3, the crude oil is in an upward movement state, meanwhile, the exhaust valve 72 is opened, gas in the gas storage bottle 71 enters the center box 84 through the gas supply pipe 73 and then is exhausted into the exhaust ring 83 through each gas pipe 85, and finally hydrogen is exhausted downwards through each exhaust head 87; in the exhaust process, the rotating motor 81 can drive the exhaust ring 83 to rotate, so as to drive the exhaust head 87 and the scraper 86 to rotate, the contact surface between hydrogen and crude oil can be wider in the rotation process of the exhaust head 87, the scraper 86 can drive the crude oil to stir and rotate, so that the dissolution amount of the hydrogen is more, the movable joint 88 can rotate along with the central box 84, and the exhaust mechanism 8 can also rotate while gas is conveyed;
(2) the crude oil dissolved with hydrogen can be discharged through the first liquid discharge pipe 41 and the second liquid discharge pipe 42, and when the crude oil contacts the waterproof breathable film 54, the excessive undissolved hydrogen can enter the inner pipe body 522 through the waterproof breathable film 54; the water pump 62 can pump water into the cold water circulation chamber 523, part of oil gas carried in the gas can be cooled to form liquid, then the liquid is discharged along the inner wall of the inner pipe 522, and finally the liquid is stored in the bottom layer of the third tank 51, the redundant hydrogen gas can be discharged into the third tank 51, and then the liquid moves upwards, and finally the liquid enters the gas supply pipe 73 through the circulation gas pipe 91, so that the hydrogen gas can be recycled, and the check valve 92 can prevent the hydrogen gas from flowing into the circulation gas pipe 91 again.
According to the invention, when crude oil enters the second box body 3, the crude oil moves upwards in the second box body 3, and hydrogen can be discharged downwards through the exhaust mechanism 8, and the crude oil and the hydrogen are opposite in moving direction and mutually collided, so that the hydrogen can be quickly dissolved in the crude oil; the rotating motor 81 can drive the exhaust ring 83 to rotate, so as to drive the exhaust head 87 and the scraper 86 to rotate, the contact surface of hydrogen and crude oil can be wider in the rotating process of the exhaust head 87, and the scraper 86 can drive the crude oil to stir and rotate, so that the dissolving amount of the hydrogen is more; unnecessary hydrogen can be sieved out through the waterproof breathable film 54, and part of oil gas in the hydrogen can be separated out through the condensing mechanism 52, so that the unnecessary hydrogen can be purified, the purified hydrogen can be discharged into the gas supply pipe 73 through the circulating mechanism 9, the hydrogen can be recycled, and the waste of the hydrogen is reduced.
The waterproof breathable film 54 is mainly composed of three layers: PP spunbonded non-woven fabric, PE high-molecular breathable film and PP spunbonded non-woven fabric; the spun-bonded non-woven fabric mainly has the effects of enhancing tensile force and hydrostatic pressure and protecting the middle layer, and the middle layer PE high-molecular breathable film is mainly used for real ventilation. The motor is an LF260 type produced by Shenzhen Longhui motor Limited and a related power supply and a related circuit thereof. The suction pump 62 is an MG1000 model supplied by Nanjing Pascal micropump, Inc. and its associated power supply and circuitry.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A method for improving the efficiency of liquid phase hydrogenation reaction is characterized in that: the method comprises the following steps:
s1: preparing hydrogen, raw oil and a catalyst required by the reaction;
s2: introducing the three materials prepared in the S1 into a liquid-phase hydrogenation mixer;
s3: a water storage tank is arranged beside the liquid-phase hydrogenation mixer and is connected with a water pipe, when the reaction temperature of the liquid-phase hydrogenation mixer rises, the water pipe sprays water to the outer wall of the liquid-phase hydrogenation mixer for cooling, and a fan is arranged to blow air to the liquid-phase hydrogenation mixer for accelerating cooling;
s4: after the liquid-phase hydrogenation mixer fully reacts, a product is obtained;
the method uses a liquid phase hydrogenation mixer, which comprises a first box body (1), a conveying pipe (2), a second box body (3), a liquid discharge mechanism (4), a gas-liquid separation mechanism (5), a water supply mechanism (6), a gas supply mechanism (7), an exhaust mechanism (8) and a circulation mechanism (9); the conveying pipe (2) and the second box body (3) are arranged in the first box body (1), the conveying pipe (2) is communicated with the second box body (3), and the second box body (3) is used for mixing raw materials with hydrogen; the exhaust mechanism (8) is arranged in the second box body (3), the exhaust mechanism (8) is used for exhausting hydrogen, and the exhaust mechanism (8) is communicated with the gas supply mechanism (7); the side wall of the second box body (3) is communicated with the liquid discharge mechanism (4), and the liquid discharge mechanism (4) is used for discharging saturated raw material liquid; the end part of the liquid discharge mechanism (4) is communicated with the gas-liquid separation mechanism (5), and the gas-liquid separation mechanism (5) is used for separating hydrogen from stock solution; the gas-liquid separation mechanism (5) is communicated with the water supply mechanism (6), and the water supply mechanism (6) is used for supplying cooling water to the gas-liquid separation mechanism (5); the gas-liquid separation mechanism (5) is communicated to an outlet of the gas supply mechanism (7) through the circulation mechanism (9), and the circulation mechanism (9) is used for circulating the separated hydrogen to the gas supply mechanism (7);
the conveying pipe (2) is of a U-shaped structure, and the conveying pipe (2) is communicated with the bottom surface of the second box body (3);
the exhaust mechanism (8) is located in the middle of the inside of the second box body (3), the exhaust mechanism (8) comprises a rotating motor (81), a support rod (82), an exhaust ring (83), a center box (84), an air conveying pipe (85), a scraper (86), an exhaust head (87) and a movable joint (88), the rotating motor (81) is located at the central line of the second box body (3), the support rod (82) is symmetrically arranged on the side wall of the rotating motor (81), the support rod (82) is fixedly connected with the inner wall of the second box body (3), the rotating motor (81) is fixedly connected with the center box (84), the air conveying pipe (85) is symmetrically communicated with the side wall of the center box (84), the exhaust ring (83) is arranged at the end part of the air conveying pipe (85), and the air conveying pipe (85) is communicated with the exhaust ring (83), the center box (84) and the exhaust ring (83) are arranged at intervals and are positioned at the same circle center, the scraper (86) is fixed between the center box (84) and the exhaust ring (83), the exhaust heads (87) are distributed on the bottom surface of the exhaust ring (83) in an annular array, and the movable joint (88) is rotatably connected to the bottom surface of the center box (84);
the air supply mechanism (7) comprises an air storage bottle (71), an exhaust valve (72) and an air supply pipe (73), the air supply pipe (73) is L-shaped, the air supply pipe (73) is communicated with the movable joint (88), the air supply pipe (73) is communicated with the exhaust valve (72), and the exhaust valve (72) is arranged at the top of the air storage bottle (71);
the liquid discharging mechanism (4) comprises a first liquid discharging pipe (41) and a second liquid discharging pipe (42), the first liquid discharging pipe (41) is communicated with the side wall of the top of the second box body (3), and the side wall of the first liquid discharging pipe (41) is communicated with the second liquid discharging pipe (42);
the gas-liquid separation mechanism (5) comprises a third box body (51), a condensation mechanism (52), a pipe body (53) and a waterproof breathable film (54), wherein the pipe body (53) is communicated with the end part of the second liquid discharge pipe (42), the waterproof breathable film (54) is embedded in the pipe body (53), the area of the waterproof breathable film (54) is the same as the sectional area of the pipe body (53), the third box body (51) is communicated with the bottom part of the pipe body (53), the condensation mechanism (52) is installed in the third box body (51), the condensation mechanism (52) comprises an outer pipe body (521), an inner pipe body (522) and a cold water circulation chamber (523), the inner pipe body (522) is communicated with the pipe body (53), the inner pipe body (522) and the outer pipe body (521) are both spiral, and the outer pipe body (521) is arranged outside the inner pipe body (522), the closed cold water circulation chamber (523) is arranged between the outer pipe (521) and the inner pipe (522), and both ends of the inner pipe (522) are open;
the circulating mechanism (9) comprises a circulating air pipe (91) and a one-way valve (92), the circulating air pipe (91) is communicated with the side wall of the top of the third box body (51), the circulating air pipe (91) is communicated with the air supply pipe (73), and the one-way valve (92) is installed at the joint of the circulating air pipe (91) and the air supply pipe (73);
the water supply mechanism (6) comprises a water tank (61) and a water suction pump (62), the water tank (61) is communicated with the water suction pump (62), the water suction pump (62) is communicated with the side wall of the top end of the cold water circulation chamber (523), and the bottom end of the cold water circulation chamber (523) is communicated with the water tank (61);
when the crude oil is processed, the crude oil is conveyed into the second box body (3) through the conveying pipe (2), when the crude oil enters the second box body (3), the crude oil is in an upward moving state, meanwhile, the exhaust valve (72) is opened, gas in the gas storage bottle (71) enters the center box (84) through the gas supply pipe (73), then is discharged into the exhaust ring (83) through each gas conveying pipe (85), and finally hydrogen is discharged downwards through each exhaust head (87), and the hydrogen and the crude oil are opposite in moving direction and mutually collided, so that the hydrogen can be quickly dissolved into the crude oil; in the exhaust process, the rotating motor (81) can drive the exhaust ring (83) to rotate, so that the exhaust head (87) and the scraper (86) are driven to rotate, the contact surface of hydrogen and crude oil can be wider in the rotation process of the exhaust head (87), the scraper (86) can drive the crude oil to stir and rotate, the dissolving amount of the hydrogen is more, the movable joint (88) can rotate along with the central box (84), and the exhaust mechanism (8) can also rotate while gas is conveyed;
the crude oil dissolved with hydrogen can be discharged through the first liquid discharge pipe (41) and the second liquid discharge pipe (42), when the crude oil is contacted with the waterproof breathable film (54), the excessive undissolved hydrogen can pass through the waterproof breathable film (54) and enter the inner pipe body (522); the water pump (62) can pump water into the cold water circulation chamber (523), part of oil gas carried in the gas can be cooled to form liquid, then the liquid is discharged along the inner wall of the inner pipe body (522), and finally the liquid is stored in the bottom layer of the third box body (51), redundant hydrogen can be discharged into the third box body (51), then the liquid moves upwards, and finally the redundant hydrogen enters the gas supply pipe (73) through the circulating gas pipe (91), so that the hydrogen can be recycled, and the one-way valve (92) can prevent the hydrogen from flowing into the circulating gas pipe (91) again.
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