CN109777491A - A kind of refinery gas adds hydrogen Combined machining technique - Google Patents

A kind of refinery gas adds hydrogen Combined machining technique Download PDF

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CN109777491A
CN109777491A CN201711118828.7A CN201711118828A CN109777491A CN 109777491 A CN109777491 A CN 109777491A CN 201711118828 A CN201711118828 A CN 201711118828A CN 109777491 A CN109777491 A CN 109777491A
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gas
oil
hydrogen
hydrogenation
catalyst bed
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CN109777491B (en
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刘涛
蒋立敬
李宝忠
吴锐
袁胜华
乔凯
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Sinopec Dalian Petrochemical Research Institute Co ltd
China Petroleum and Chemical Corp
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China Petroleum and Chemical Corp
Sinopec Dalian Research Institute of Petroleum and Petrochemicals
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Abstract

The present invention discloses a kind of REFINERY GAS group technology, including following content :(a) residual oil raw material oil mixes in molten hydrogen storage equipment with hydrogen with recycle oil, it is reacted under Hydroprocessing conditions subsequently into the hydrogenation catalyst bed in hydrogenator, molten gas equipment is arranged in adjacent catalyst bed interlayer;(b) enter the molten gas equipment that any adjacent catalyst bed interlayer is arranged after refinery gas and/or hydrogen mixing, reacted with next catalyst bed is entered after the mixing of the reaction stream of a upper catalyst bed;(c) the hydrogenation reaction logistics that step (b) obtains is reacted under liquid-phase hydrogenatin operating condition with after refinery gas and hydrogen mixing into the hydrogenation catalyst bed in supplement hydrogenator in molten gas equipment;(d) hydrogenation reaction effluent that step (c) obtains is separated into gas phase and liquid phase, continues the refinery gas after isolated hydrogen, hydrotreating after isolated gas phase removal hydrogen sulfide.This method can simultaneously hydrotreating refinery gas and production hydrogenated residue.

Description

A kind of refinery gas adds hydrogen Combined machining technique
Technical field
The invention belongs to the hydrogenation techniques of oil Refining Technologies, are related to a kind of REFINERY GAS Combined machining technique, specifically relate to And a kind of combined hydrogenation method of REFINERY GAS processing and production hydrogenated residue.
Background technique
The energy in global range is mainly derived from fossil energy at present, and wherein petroleum is the main next of automotive fuel Source.Petroleum belongs to non-renewable energy resources, and not only resource is increasingly depleted, and heaviness and the aggravation of in poor quality trend, and the world passes through Ji sustainable development, environmental regulation is increasingly strict needs to produce a large amount of light clean fuels, these are required to existing oil refining skill Increase new oil substitutes while art is improved, satisfactory product is produced with minimum cost.It urges Changing cracking is one of the important means of light materialization of heavy oil, but with the in poor quality and heaviness of catalyzed cracking processing raw material, Its operating condition is more and more harsher, and light-end products yield and product property are deteriorated, and hydrotreating of FCC feedstock technology is not Only can remove sulphur, nitrogen, metal impurities content, can also improve the cracking performance of charging, reduce FCC operating severity;Change Kind product distribution, improves purpose product selectivity;Dry gas and coke yield are reduced, the economy of FCC apparatus is improved;Reduce purpose Product sulfur content;Reduce SOx and NOx content etc. in regenerated flue gas.
Residual hydrogenation technology is to improve the most important means of catalytic cracking product quality and clean manufacturing, liquid phase residual hydrogenation Technology can reach the requirement of cleaning diesel production in the case where energy consumption is greatly lowered.US6213835 and US6428686 is public A kind of hydrogenation technique of molten hydrogen in advance has been opened, CN104927903A discloses a kind of process for hydrogenating residual oil, CN105316037A discloses a kind of process for hydrogenating residual oil, and this method is mainly that gas-liquid is respectively adopted in up flow type and fixed bed Gu the mode of three addition hydrogen and liquid-solid two-phase hydrogenation carries out hydrotreating, these different above-mentioned methods be all be to be dissolved in hydrogen Hydrogenation reaction is carried out in residual oil raw material, there is no utilizing to the remaining hydrogen of reaction, is directly in addition handled after separation.
Refinery gas generally comprises dry gas and liquefied gas etc., and there are many paths for its utilization.Wherein main purposes includes dry Gas adds the raw material after hydrogen as preparing ethylene by steam cracking, and liquefied gas adds suitable as the raw material of preparing ethylene by steam cracking, synthesis after hydrogen Raw material, motor liquified gas of acid anhydride etc..In existing REFINERY GAS technology, it is dry that CN201410271572.3 discloses a kind of coking Gas hydrogenation catalyst and grading method of catalyst.This method is to solve the controlling party of reaction temperature when coking dry gas adds hydrogen Method, but reaction process temperature rise is larger.CN201010221244.4 discloses a kind of hydrogenation of liquefied petroleum gas and prepares cracking of ethylene The method of material is arranged two reactors, cooling facility is arranged between reactor, and CN201310628425.2 discloses a kind of liquefaction The high-temperature hydrogenation purification process of gas material, by adding the method for hydrogen to carry out alkene saturation and hydrogenation and removing impurity.It is well known that alkene The hydrogenation reaction of the unsaturated hydrocarbons such as hydrocarbon, alkadienes, alkynes is strong exothermal reaction, and temperature rise is all very big in gas hydrogenation process, is led to Normal 100 ~ 200 DEG C, the balance of hydrogenation reaction is destroyed as the temperature rises, and seriously increases the generation of carbon distribution, thus Reduce the service life of catalyst.
CN201010221263.7 discloses a kind of liquefied petroleum gas-coke gasoline hydrogenation combined process method, this method It for combined method, but is not the method using liquid-phase hydrogenatin, coker gasoline mixes that carry out fixed bed hydrogenation anti-with hydrogen first It answers, is hydrogenated to object and liquefied gas is mixed into other reactor, only address only the problem of liquefied gas adds hydrogen temperature rise.
In conclusion REFINERY GAS treatment process is gas phase reaction in the prior art, residual hydrogenation is liquid phase reactor, The two reaction type is entirely different, and therefore, REFINERY GAS processing and residual oil liquid-phase hydrogenatin combined method are rarely reported.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of combined hydrogenation method.This method being capable of hydrotreating simultaneously Refinery gas and production hydrogenated residue.Under the premise of not influencing hydrogenated residue product quality even raising hydrogenated residue product quality It improves the utilization efficiency of hydrogen and efficiently solves the problem of temperature rise in REFINERY GAS treatment process, it is overall to reduce equipment investment With reduction operation energy consumption.
REFINERY GAS combined method of the present invention, including following content:
(a) residual oil raw material oil mixes in molten hydrogen storage equipment with hydrogen with recycle oil, urges subsequently into hydrogenator plus hydrogen Agent bed is reacted under Hydroprocessing conditions, and the catalyst bed is set as multilayer, and preferably 2-12 layers, adjacent catalyst Molten gas equipment is set between agent bed;
(b) enter the molten gas equipment that any adjacent catalyst bed interlayer is arranged after refinery gas and/or hydrogen mixing, with from upper one Enter next catalyst bed after the reaction stream mixing of catalyst bed to be reacted;
(c) enter supplement plus hydrogen after the hydrogenation reaction logistics that step (b) obtains mixes in molten gas equipment with refinery gas and hydrogen Hydrogenation catalyst bed in reactor is reacted under liquid-phase hydrogenatin operating condition;
(d) hydrogenation reaction effluent that step (c) obtains is separated into gas phase and liquid phase, after isolated gas phase removal hydrogen sulfide Refinery gas after continuing isolated hydrogen, hydrotreating, isolated liquid phase are fractionated to obtain naphtha, diesel oil and add hydrogen slag Oil product, hydrogenation reaction effluent that the isolated liquid phase of partial high pressure separator and/or part steps (b) obtain and/or The hydrogenation reaction logistics that part steps (c) obtain returns in molten hydrogen storage equipment as recycle oil.
In the above method, the residual oil raw material oil used may include reduced crude, decompression residuum, coking heavy oil, thermal cracking One of residue oil fractions such as heavy oil, visbroken heavy oil, coal tar heavy duty oil distillate, DCL/Direct coal liquefaction heavy oil, shale oil heavy oil Or it is several, a part of catalytic cracking light cycle oil, heavy catalytic cycle oil, straight run wax can also be mixed in residual oil raw material oil The light fraction of the reduction raw material oil viscosity such as oil.
In the above method, Hydroprocessing conditions are generally reaction pressure 4.0MPa ~ 20.0MPa, and residual oil raw material oil volume is empty Speed is 0.1h-1~6.0h-1, 180 DEG C ~ 470 DEG C of average reaction temperature, the ratio of recycle oil and residual oil raw material oil is 0.3:1 ~ 10: 1;Preferred operating condition is reaction pressure 5.0MPa ~ 19.0MPa, and residual oil raw material oil volume air speed is 0.15h-1~5.0h-1, put down The ratio of equal 200 DEG C ~ 460 DEG C of reaction temperature, recycle oil and residual oil raw material oil is 0.4:1 ~ 8:1.
In the above method, supplement Hydroprocessing conditions are generally reaction pressure 4.0MPa ~ 20.0MPa, residual oil raw material oil body Product air speed is 0.2h-1~30.0h-1, 180 DEG C ~ 470 DEG C of average reaction temperature;Preferred operating condition be reaction pressure 5.0MPa ~ 19.0MPa, residual oil raw material oil volume air speed are 0.3h-1~25.0h-1, 200 DEG C ~ 460 DEG C of average reaction temperature.
In the above method, hydrogenation active component is one or more of CO, Mo, W, Ni in hydrogenation catalyst, with oxidation The weight content of object meter is 5%~70%, and the carrier of hydrogenation catalyst is generally aluminium oxide, amorphous silicon aluminium, silica, titanium oxide Deng, while other auxiliary agents, such as P, Si, B, Ti, Zr can be contained.Commercial catalyst can be used, it can also be existing by this field There is method preparation.Hydrogenation active component is the catalyst of oxidation state, carries out conventional vulcanizing treatment before the use, makes plus hydrogen is living Property component is converted into sulphided state.Business hydrogenation catalyst mainly has, as Fushun Petrochemical Research Institute (FRIPP) is developed FZC-1 series protective agent, FZC-2 series catalyst for demetalation, FZC-3 series desulphurization catalyst, FZC-4 series take off carbon residue catalysis The hydrogenation catalysts such as agent, the hydrogenation catalysts such as HMC945, HMC841 of Inst Francais Du Petrole, the RF catalyst series of Uop Inc.'s exploitation It is participated in the KFR series of R catalyst series, AKZO company, the HT catalyst series and Haldor Topsoe of the exploitation of Axen company The hydrogenation catalysts such as the TK catalyst series of company's exploitation.
In the above method, preferably residual oil raw material oil mixes in molten hydrogen storage equipment with hydrogen after mixing with recycle oil, then into Enter hydrogenation catalyst bed to be reacted under Hydroprocessing conditions, the hydrogenation catalyst that reaction mass passes through first accounts for all add The 30% ~ 80% of hydrogen catalyst volume, preferably 35% ~ 75% introduce refinery gas after best 40% ~ 65%.
In the above method, residual oil raw material oil enters after mixing with recycle oil from the top of hydrogenator, dissolves at this time Hydrogen/or hydrogen-refinery gas mixture flow downlink can pass through catalyst bed, residual oil raw material oil and recycle oil from up to down It can also enter from the bottom of hydrogenator after mixing, having dissolved hydrogen/or hydrogen-refinery gas mixture flow at this time can be with Bottom-up uplink passes through catalyst bed.
In the above method, a upper catalyst bed or next catalyst bed are with the flow direction of reaction stream Benchmark, either up flow type or downflow system hydrogenation reaction, the bed first contacted with reaction stream in adjacent bed be it is upper, be followed by Under touching is.
In the above method, the refinery gas may include one of gases such as dry gas, liquefied gas or several.Gas Source can be coking, catalytic cracking, thermal cracking, visbreaking etc. reaction one or more of.
In the above method, dry gas and liquefied gas in step (b) and step (c) refinery gas are distinguished after individually mixing with hydrogen The molten gas equipment being arranged into different adjacent catalyst bed interlayers.
A kind of specific preferred embodiment is as follows: three catalyst beds, adjacent catalyst being arranged in hydrogenator Molten gas equipment is set between bed, the molten gas of the second catalyst bed and third catalyst bed interlayer is entered after dry gas and hydrogen mixing Enter the molten gas equipment between supplement hydrogenator bed after equipment, liquefied gas and hydrogen mixing, into the dry of hydrogenator Gas accounts for the 50% ~ 100% of whole dry gas raw material volumes.
In the above method, the hydrogen and refinery gas volume ratio introduced in step (b) is 2:1 ~ 200:1, preferably 5:1 ~ 150: 1, further preferred 10:1 ~ 100:1.
In the above method, hydrogenation reaction effluent separation uses high-pressure separator and/or low pressure separator.The high pressure Separator is conventional gas-liquid separator.The hydrogenation reaction logistics isolated gas and liquid in high-pressure separator. The low pressure separator is conventional gas-liquid separator.Isolated liquid is separated in high-low pressure in the high-pressure separator Isolated gas and liquid in device.
In the above method, the fractionating system for being fractionated use includes stripper and/or fractionating column.In the low pressure separator Isolated liquid, which is stripped and/or is fractionated in fractionating system, obtains naphtha, diesel oil and hydrogenated residue product.
In the above method, gas separator used by gas separates is conventional separator.The high-pressure separator In isolated hydrogen, dry in gas separator after isolated gas mixing in isolated gas and low pressure separator Gas and liquefied gas etc. are directly entered stripper and/or fractionating column if having product liquid.
The hydrogen dissolved in residual oil liquid-phase hydrogenatin technique be it is excessive, can be dissolved in hydrogenated oil after the reaction was completed big The hydrogen of amount increases energy consumption to cause the invalid use of hydrogen;In gas hydrogenation process, because exothermic heat of reaction amount is big So that the temperature rise of catalyst bed is big, cause hydrogenation reaction temperature range big, not only affects the effect of hydrogenation reaction, Er Qiejia The speed generation of catalyst carbon deposition, reduces the service life of catalyst.Result of study surface, refinery gas do not add completely with residual oil Hydrogen handles material solubility with higher and the saturation degree of refinery gas in the liquid phase is higher, and refinery gas can effectively dissolve Hydrogenation reaction is carried out in residual oil streams.In residual oil liquid phase circulation hydrogenation plant, gas raw material and hydrogen are mixed into dress Several catalyst beds behind setting, using higher reaction pressure, the hydrogenation catalyst of greater activity and the hydrogen for incorporating liquid phase Atmosphere encloses to achieve the purpose that production plus hydrogen purification gas, and hydrogen is improved under the premise of not influencing residue product quality Utilization efficiency, it is overall to reduce equipment investment and reduce operation energy consumption.
Residual oil raw material can add the method for hydrogen to produce hydrogenated residue by liquid phase circulation in the prior art, and dry gas raw material passes through The method of fixed bed hydrogenation produces dry gas product, and liquefied gas raw material produces liquefied gas product by the method for fixed bed hydrogenation.Gas Body has certain solubility in a liquid, the principle of this namely residual oil liquid phase circulation hydrogen addition technology exploitation, i.e., using being dissolved in Hydrogen in residual oil realizes hydrogenation reaction, wherein the first bed catalyst undertakes maximum effect, it is a large amount of incidental plus Hydrogen desulphurization reaction all occurs in this bed.But the hydrogen of dissolution can not react completely, can remain in reaction product a large amount of Hydrogen, usually remaining can dissolve in the 20% ~ 70% of hydrogen.The dissolution as organic gas in residual oil such as dry gas and liquefied gas Spend it is bigger, and with the meltage that can increase hydrogen in the presence of hydrogen.And dissolve dry gas, liquefied gas is in catalyst and hydrogen Atmosphere be easy to occur hydrogenation reaction, realize production clean gas purpose.The present invention is by making full use of residual oil liquid phase to follow Ring hydrogenation technique needs the characteristics of dissolving hydrogen, in order to reduce influence of the gas of dissolution to original residual hydrogenation to the greatest extent, by gas Body raw material mixing hydrogen enters the catalyst bed after the first catalyst bed, completes gas using the atmosphere of hydrogen and catalyst The hydrogenation reaction of body, and hydrogen can also be more dissolved into residual oil raw material, promote residual hydrogenation reaction;Or further By in mixed gas part dry gas or whole dry gas raw material and hydrogen be mixed into the second catalyst bed, this is mainly Olefin(e) centent is low in dry gas, and hydrogen consumption is smaller, and required activated centre quantity is few, and it is short to react the desorption process time, to residual oil plus The influence of hydrogen reaction minimizes, and hydrogen is consumed relatively large gas and introduces the opposite catalysis lowered of subsequent residual hydrogenation consumption hydrogen Agent bed, the overall influence reduced to residual hydrogenation effect.
The present invention further still dissolves a large amount of hydrogen by making full use of residual oil liquid phase circulation hydrogenation technique to generate in oil The characteristics of, a supplement hydrogenator is set residual hydrogenation reactor is subsequent again, refinery gas dissolution of raw material is added in residual oil In hydrogen reactant stream and enter supplement hydrogenator catalyst bed, completes gas using the hydrogen of dissolution and the atmosphere of catalyst The hydrogenation reaction of body not only solves the problem that gas adds hydrogen temperature rise big, and the hydrogen dissolved in residual oil is used for gas and is added Hydrogen reaction reduces hydrogen consumption;Or multiple catalyst beds are arranged in further supplement hydrogenator, it will be in mixed gas Part dry gas or whole dry gas raw material and residual hydrogenation generate oil and be mixed into the first catalyst bed, by remaining gas And/or hydrogen blend mixture enters subsequent catalyst bed, this mainly allows hydrogen consumption low, cuts the dry gas for being easiest to react first Hydrogenation reaction is carried out, then allows hydrogen to consume slightly higher liquefied gas and is reacted into subsequent catalyst bed, and require supplementation with It is supplemented into when hydrogen in subsequent catalyst bed entrance.Combined method aggregate performance is not influence residue product matter Gas hydrogenation process is completed under the premise of amount, obtains hydrogenated residue product and gas products, and two kinds of technical optimization combinations, Save equipment investment and operating cost.
Detailed description of the invention
Fig. 1 is the flow chart of the present invention plus hydrogen Combined machining technique.
Fig. 2 is another flow chart of the present invention plus hydrogen Combined machining technique.
Wherein: 1- feedstock oil, 2- raw oil pump, 3- recycle oil, 4- hydrogen-dissolving device, the new hydrogen of 5-, 6- gas raw material, 6-1- dry gas Raw material, 6-2- liquefied gas raw material, 7- hydrogenator, 8- exhaust valve, 9- hydrofining reaction logistics, 10- high-pressure separator, 11- low pressure separator, 12- stripping/fractionating system, 13- stripping gas, 14- naphtha product, 15- diesel product, 16- add hydrogen slag Oil product, 17- high-pressure separator gas, 18- low pressure separator gas, 19- gas separator, 20- hydrogen, 21- dry gas product, 22- liquefied gas product, 23- gas dissolver, 24- post-reactor, 25- hydrogenation reaction logistics.
Specific embodiment
The process and effect of combined hydrogenation method of the present invention, but following embodiment are further illustrated below with reference to embodiment The limitation to the method for the present invention is not constituted.
A kind of combined hydrogenation method specific embodiment of the present invention is as follows: feedstock oil 1 is mixed with recycle oil 3, mixed Material enters hydrogenator 7 after mixing in hydrogen-dissolving device 4 with hydrogen, and passes through the first catalyst bed, the first catalyst bed Hydrogen is dissolved in layer effluent, and passes through the second catalyst bed, dissolves in hydrogen and gas in the second catalyst bed effluent Raw material 6, and mixed in gas dissolver 23 by third catalyst bed, third catalyst bed reaction effluent 9 and gas raw material 6 Enter post-reactor 24 after conjunction, and pass through the first catalyst bed, dissolves in gas raw material in the first catalyst bed effluent 6, and by the second catalyst bed, the second catalyst bed effluent 25 enters high-pressure separator 10, in high-pressure separator 10 In isolated gas 17 and liquid, liquid enters low pressure separator 11, isolated 18 He of gas in low pressure separator 11 Liquid, the liquid liquid component isolated with gas separator 19 enters stripping/fractionating system 12 after mixing, in fractionating system In under the action of stripping gas 13 fractionation obtain naphtha 14, diesel oil 15 and hydrogenated residue 16, after gas 17 and gas 18 mix Into gas separator 19, isolated hydrogen, dry gas and liquefied gas product in gas separator 19.Recycle oil 3 can be straight It connects and is obtained from 9, can also be obtained in the isolated liquid of high-pressure separator 10.
Concrete condition of the invention is further illustrated below by embodiment.It is developed and is produced using FRIPP Protective agent, catalyst for demetalation, desulphurization catalyst, de- carbon residue catalyst combination FZC catalyst series system tested Research.
1 residual oil raw material main character of table
2 gas raw material main character of table
3 embodiment process conditions of table and major product property
Residual oil raw material and gas raw material can be produced directly by the combined hydrogenation method of this technology it can be seen from embodiment adds Hydrogen residue product and clean gas product.

Claims (12)

1. REFINERY GAS group technology, including following content:
(a) residual oil raw material oil mixes in molten hydrogen storage equipment with hydrogen with recycle oil, urges subsequently into hydrogenator plus hydrogen Agent bed is reacted under Hydroprocessing conditions, and the catalyst bed is set as multilayer, and preferably 2-12 layers, adjacent catalyst Molten gas equipment is set between agent bed;
(b) enter the molten gas equipment that any adjacent catalyst bed interlayer is arranged after refinery gas and/or hydrogen mixing, with from upper one Enter next catalyst bed after the reaction stream mixing of catalyst bed to be reacted;
(c) enter supplement plus hydrogen after the hydrogenation reaction logistics that step (b) obtains mixes in molten gas equipment with refinery gas and hydrogen Hydrogenation catalyst bed in reactor is reacted under liquid-phase hydrogenatin operating condition;
(d) hydrogenation reaction effluent that step (c) obtains is separated into gas phase and liquid phase, after isolated gas phase removal hydrogen sulfide Refinery gas after continuing isolated hydrogen, hydrotreating, isolated liquid phase are fractionated to obtain naphtha, diesel oil and add hydrogen slag Oil product, hydrogenation reaction effluent that the isolated liquid phase of partial high pressure separator and/or part steps (b) obtain and/or The hydrogenation reaction logistics that part steps (c) obtain returns in molten hydrogen storage equipment as recycle oil.
2. according to the method described in claim 1, it is characterized by: residual oil raw material oil is reduced crude, decompression residuum, coking weight One of oil, thermal cracking heavy oil, visbroken heavy oil, coal tar heavy duty oil distillate, DCL/Direct coal liquefaction heavy oil, shale oil heavy oil or It is several, or mixing portion catalytic cracking light cycle oil, heavy catalytic cycle oil and/or straight run wax in residual oil raw material oil Oil.
3. according to the method described in claim 1, it is characterized by: residual hydrogenation operating condition be reaction pressure 4.0MPa ~ 20.0MPa, residual oil raw material oil volume air speed are 0.1h-1~6.0h-1, 180 DEG C ~ 470 DEG C of average reaction temperature, recycle oil and residual oil The ratio of feedstock oil is 0.3:1 ~ 10:1.
4. according to the method described in claim 3, it is characterized by: residual hydrogenation operating condition be reaction pressure 5.0MPa ~ 19.0MPa, residual oil raw material oil volume air speed are 0.15h-1~5.0h-1, 200 DEG C ~ 460 DEG C of average reaction temperature, recycle oil and slag The ratio of oily feedstock oil is 0.4:1 ~ 8:1.
5. according to the method described in claim 1, it is characterized by: supplement Hydroprocessing conditions be reaction pressure 4.0MPa ~ 20.0MPa, residual oil raw material oil volume air speed are 0.2h-1~30.0h-1, 180 DEG C ~ 470 DEG C of average reaction temperature.
6. according to the method described in claim 5, it is characterized by: supplement Hydroprocessing conditions be reaction pressure 5.0MPa ~ 19.0MPa, residual oil raw material oil volume air speed are 0.3h-1~25.0h-1, 200 DEG C ~ 460 DEG C of average reaction temperature.
7. according to the method described in claim 1, it is characterized by: the hydrogenation catalyst and benefit that are used in residual hydrogenation reactor Filling the hydrogenation catalyst hydrogenation active component used in hydrogenator is one or more of CO, Mo, W, Ni, with oxide The weight content of meter is 5%~70%, and the carrier of hydrogenation catalyst is aluminium oxide, amorphous silicon aluminium, silica, one in titanium oxide Kind is several.
8. according to the method described in claim 1, it is characterized by: residual oil raw material oil mixed with recycle oil after in molten hydrogen storage equipment It mixes, is reacted under Hydroprocessing conditions subsequently into step (a) hydrogenation catalyst bed, reaction mass is first with hydrogen By hydrogenation catalyst account for all hydrogenation catalyst volumes in step (a) hydrogenator 30% ~ 80% after introduce refinery gas.
9. according to the method described in claim 1, it is characterized by: the refinery gas be one of dry gas, liquefied gas or Person is several, and gas source is in one or more of coking, catalytic cracking, thermal cracking, visbreaking reaction.
10. according to the method described in claim 9, it is characterized by: three catalyst beds are arranged in step (a) hydrogenator Layer, adjacent catalyst bed interlayer are arranged molten gas equipment, enter the second catalyst bed after dry gas and hydrogen mixing and third is catalyzed Molten gas equipment between agent bed, supplement hydrogenator in be arranged two catalyst beds, at least containing liquefied gas be put into dry gas and Enter the molten gas equipment between supplement hydrogenator bed after hydrogen mixing.
11. according to the method described in claim 10, it is characterized by: the dry gas for entering step (a) hydrogenator accounts for whole The 50% ~ 100% of dry gas raw material volume.
12. according to the method described in claim 1, it is characterized by: the hydrogen and refinery gas volume ratio that introduce are 2:1 ~ 200: 1。
CN201711118828.7A 2017-11-14 2017-11-14 Refinery gas hydrogenation combined processing technology Active CN109777491B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880549A (en) * 2009-05-06 2010-11-10 中国石油化工股份有限公司 Hydrogenation method for liquefied gas fraction
CN102268293A (en) * 2010-06-07 2011-12-07 中国石油化工集团公司 Hydrogenation combined process
CN104560132A (en) * 2013-10-29 2015-04-29 中国石油化工股份有限公司 Method for hydrotreatment of continuous liquid-phase wax oil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880549A (en) * 2009-05-06 2010-11-10 中国石油化工股份有限公司 Hydrogenation method for liquefied gas fraction
CN102268293A (en) * 2010-06-07 2011-12-07 中国石油化工集团公司 Hydrogenation combined process
CN104560132A (en) * 2013-10-29 2015-04-29 中国石油化工股份有限公司 Method for hydrotreatment of continuous liquid-phase wax oil

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