CN210367505U - Process system for preparing carbon black by cracking methane-rich gas with plasma - Google Patents
Process system for preparing carbon black by cracking methane-rich gas with plasma Download PDFInfo
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- CN210367505U CN210367505U CN201921155408.0U CN201921155408U CN210367505U CN 210367505 U CN210367505 U CN 210367505U CN 201921155408 U CN201921155408 U CN 201921155408U CN 210367505 U CN210367505 U CN 210367505U
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Abstract
The utility model discloses a process systems of rich methane gas system carbon black of plasma schizolysis solves the not ideal problem of prior art raw materials hydrocarbon utilization ratio and carbon black yield. The utility model discloses a plasma cracker, cyclone, first ash bucket, sack cleaner, second ash bucket, scrubbing tower, PSA device, electrostatic precipitator, storage tank, transfer pump, first filter, second filter, desicator, methane and hydrogen gas mixture conveyer pipe, byproduct hydrogen outward transport pipe and conduit with plasma generator. The utility model has the advantages of simple structure and scientific and reasonable design, convenient to use can effectively improve raw materials hydrocarbon utilization ratio and carbon black yield, can also the by-product clean energy hydrogen simultaneously, does not have the harmful gas emission moreover to can reduce the emission of carbon black waste water, realize cleaner production, provide technical support for rich methane gas appreciation utilization, carbon black technical upgrade of china.
Description
Technical Field
The utility model relates to a coal industry, carbon black production, exhaust gas comprehensive utilization field, concretely relates to process systems of rich methane gas system carbon black of plasma schizolysis.
Background
The production method of carbon black mainly comprises methods of incomplete combustion, thermal cracking and the like. The incomplete combustion method mainly includes a furnace method and a trough method. Among them, the oil furnace method and the tank method are mature in process and are relatively common methods for producing carbon black. Although there are hundreds of carbon black varieties produced at present, a production process for producing carbon black having high added values (high conductivity, high specific surface area) is not yet developed. The thermal cracking method mainly comprises a thermal cracking method, an acetylene method and a plasma method. The thermal cracking method is a discontinuous method for preparing carbon black, and because the temperature of a reaction furnace is higher, primary particles of the carbon black fully grow in the nucleation process, the obtained carbon black particles have larger particle size and serious agglomeration, and more high-structure carbon black cannot be obtained. The principle of the acetylene process is similar to the thermal process, but the main raw material is acetylene gas. The carbon black prepared by the acetylene method has high structure and good conductivity (low resistivity), and can be widely used in the field of antistatic products or products of conductive rubber and plastics. The carbon black prepared by the acetylene method is mainly used in the production of dry batteries. The plasma method is a method for continuously producing carbon black by heating a reaction furnace to an extremely high temperature by heat generated by a plasma generator, and cracking a raw material hydrocarbon (gaseous hydrocarbon, liquid hydrocarbon, or solid hydrocarbon). The method has the advantages of high temperature, concentrated energy and the like, and is very suitable for creating the generation environment of the carbon black.
However, in the process system for producing carbon black in the prior art, the problems of low utilization rate of raw material hydrocarbon, low yield of carbon black, substandard emission gas and large emission of carbon black wastewater generally exist. Therefore, designing a process system for preparing carbon black by plasma cracking of methane-rich gas to improve the utilization rate of raw material hydrocarbon and the yield of carbon black, avoid the emission of harmful gas, and reduce the emission of carbon black wastewater becomes a technical problem to be solved urgently by technical personnel in the technical field.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: provides a process system for preparing carbon black by cracking methane-rich gas with plasma, which solves the problems of unsatisfactory utilization rate of raw material hydrocarbon and yield of carbon black in the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme:
a process system for preparing carbon black by cracking methane-rich gas with plasma comprises a cyclone separator, a first ash bucket, a washing tower, a PSA device, an electrostatic dust collector, a storage tank, an infusion pump, a first filter, a dryer, a methane and hydrogen mixed gas conveying pipe, a byproduct hydrogen external conveying pipe, a water conveying pipeline and a plasma cracker provided with a plasma generator;
the methane and hydrogen mixed gas conveying pipe is connected with an inlet of the plasma cracker and is used for conveying methane and hydrogen mixed gas for the plasma cracker, the plasma generator is used for conveying the methane and hydrogen mixed gas conveying pipe into the hydrogen in the plasma cracker for ionization to generate high temperature, an outlet at the bottom of the plasma cracker is connected with an inlet of the cyclone separator through a pipeline, and the first ash hopper is connected with a solid material outlet of the cyclone separator and is used for collecting carbon black products;
a gas material outlet of the cyclone separator is connected with a bottom inlet of the washing tower through a pipeline, a top outlet of the washing tower is connected with an inlet of the PSA device through a pipeline, a product gas outlet of the PSA device is connected with a byproduct hydrogen outward conveying pipe, and a tail gas outlet of the PSA device is connected with the methane and hydrogen mixed gas conveying pipe through a pipeline so as to convey tail gas discharged by the PSA device into the plasma cracker;
the upper portion export of scrubbing tower pass through the pipeline with electrostatic precipitator's import is connected, electrostatic precipitator's gas outlet pass through the pipeline with the lower part import of scrubbing tower is connected, the top import of storage tank pass through the pipeline respectively with the tower bottom export of scrubbing tower with the liquid outlet of electrostatic precipitator is connected, the storage tank pass through conduit respectively with the lower part cooling water inlet of plasma cracker with the top technology water inlet of scrubbing tower is connected, the transfer pump with first filter all locates on the conduit, and the transfer pump with first filter distributes along the water flow direction in proper order, the desicator with the solid filtrate export of first filter is connected through the conveying track and is used for drying into the carbon black product with the solid filtrate that first filter crossed.
The device further comprises a bag-type dust collector and a second ash bucket, wherein the bag-type dust collector is arranged on a pipeline connected with a gas material outlet of the cyclone separator and a bottom inlet of the washing tower, the inlet of the bag-type dust collector is connected with the gas material outlet of the cyclone separator through the pipeline, the gas material outlet of the bag-type dust collector is connected with the bottom inlet of the washing tower through the pipeline, and the second ash bucket is connected with a solid material outlet of the bag-type dust collector and used for collecting carbon black products.
The dryer is also connected with a solid filtrate outlet of the second filter through a conveying crawler belt and is used for drying the solid filtrate filtered by the second filter into a carbon black product.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model has the advantages of simple structure and scientific and reasonable design, convenient to use can effectively improve raw materials hydrocarbon utilization ratio and carbon black yield, can also the by-product clean energy hydrogen simultaneously, does not have the harmful gas emission moreover to can reduce the emission of carbon black waste water, realize cleaner production, provide technical support for rich methane gas appreciation utilization, carbon black technical upgrade of china.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-a plasma generator, 2-a plasma cracker, 3-a cyclone separator, 4-a first ash bucket, 5-a bag dust collector, 6-a second ash bucket, 7-a washing tower, 8-a PSA device, 9-an electrostatic dust collector, 10-a storage tank, 11-an infusion pump, 12-a first filter, 13-a second filter, 14-a dryer, 15-a methane and hydrogen mixed gas conveying pipe, 16-a byproduct hydrogen gas outward conveying pipe and 17-a water conveying pipe.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1, the utility model provides a pair of process systems of rich methane gas system carbon black of plasma schizolysis, including plasma generator 1, plasma cracker 2, cyclone 3, first ash bucket 4, sack cleaner 5, second ash bucket 6, scrubbing tower 7, PSA device 8, electrostatic precipitator 9, storage tank 10, transfer pump 11, first filter 12, second filter 13, desicator 14, methane and hydrogen gas mixture conveyer pipe 15, by-product hydrogen outer transport pipe 16, and conduit 17.
Methane and hydrogen gas mixture conveyer pipe 15 with the import of plasma cracker 2 is connected and is used for doing plasma cracker 2 carries methane and hydrogen gas mixture, plasma generator 1 be used for with methane and hydrogen gas mixture conveyer pipe 15 carry into hydrogen in the plasma cracker 2 ionizes and produces high temperature, the bottom export of plasma cracker 2 with cyclone 3's import is through the pipe connection, first ash bucket 4 with cyclone 3's solid material export is connected and is used for collecting the carbon black product.
The gas material outlet of the cyclone separator 3 of the utility model is connected with the inlet of the bag-type dust collector 5 through a pipeline, the second ash hopper 6 is connected with a solid material outlet of the bag-type dust collector 5 and is used for collecting carbon black products, the gas material outlet of the bag-type dust collector 5 is connected with the bottom inlet of the washing tower 7 through the pipeline, the top outlet of the washing column 7 is connected with the inlet of the PSA device 8 through a pipeline, the product gas outlet of the PSA unit 8 is connected to the byproduct hydrogen gas delivery pipe 16, and a tail gas outlet of the PSA device 8 is connected with the methane and hydrogen mixed gas conveying pipe 15 through a pipeline so as to convey the tail gas discharged by the PSA device 8 into the plasma cracker 2, and the tail gas discharged by the tail gas outlet of the PSA device 8 contains hydrocarbons and a small amount of hydrogen.
The upper outlet of the washing tower 7 of the utility model is connected with the inlet of the electrostatic dust collector 9 through a pipeline, the gas outlet of the electrostatic precipitator 9 is connected with the lower inlet of the washing tower 7 through a pipeline, the top inlet of the storage tank 10 is respectively connected with the tower bottom outlet of the washing tower 7 and the liquid outlet of the electric dust collector 9 through pipelines, the storage tank 10 is respectively connected with a lower cooling water inlet of the plasma cracker 2 and a top process water inlet of the washing tower 7 through a water conveying pipeline 17, the infusion pump 11 and the first filter 12 are both arranged on the water conveying pipeline 17, and the infusion pump 11 and the first filter 12 are sequentially distributed along the water flow direction, and the dryer 14 is connected with the solid filtrate outlet of the first filter 12 through a conveying crawler belt and is used for drying the solid filtrate filtered by the first filter 12 into a carbon black product.
The utility model discloses an improve filtration efficiency, still be equipped with second filter 13 on the conduit 17, second filter 13 with the parallelly connected distribution of first filter 12, desicator 14 still simultaneously with the solid filtrate export of second filter 13 is connected through the conveyor track and is used for drying into the carbon black product with the solid filtrate that second filter 13 filtered out. The filtrate outlet of the first filter 12 is connected to the lower cooling water inlet of the plasma cracker 2 and the top process water inlet of the washing tower 7 through the water pipe 17, and similarly, the filtrate outlet of the second filter 13 is connected to the lower cooling water inlet of the plasma cracker 2 and the top process water inlet of the washing tower 7 through the water pipe 17. The water conveying pipeline 17 is provided with the first filter 12 and the second filter 13 which are connected in parallel, the first filter is started for standby, when one of the filters stops operating to unload solid filtrate onto the conveying track, the other filter operates to filter, and the two filters are recycled, so that the filtering efficiency can be effectively improved.
The utility model discloses the system is after the start-up, methane and hydrogen are at first through the plasma generator ionization back, methane takes place the schizolysis reaction in the pyrolysis tube under the high temperature, pyrolysis gas passes through cyclone after the cooling water of plasma cracker lower part, the bag-type dust remover separation, collect most solid carbon black by the lower part ash bucket, the gas that contains a small amount of carbon black gets into the scrubbing tower by the bottom, gas is discharged from the top of the tower after the washing, simultaneously scrubbing tower upper portion is drawn forth gas and is got into single-stage electrostatic precipitator and carry out single-stage electrostatic precipitator and handle the back, return scrubbing tower lower part again, the top of the tower gas passes through PSA device (PSA device is pressure swing adsorption separator) and separates hydrogen, hydrocarbons and a small amount of hydrogen return plasma cracker, liquid and electrostatic precipitator washing liquid at the bottom of the tower get into the storage tank after the filtration, the process water returns scrubbing tower upper portion and, the filtered carbon black was collected after drying.
The utility model discloses gas temperature all is not less than 200 degrees before getting into the scrubbing tower, consequently spouts the water of plasma reactor bottom all be gaseous state always.
Pressure Swing adsorption separation device (PSA for short), it is a novel gas adsorption separation technique, it has following advantage: the product purity is high; the method can generally work at room temperature and low pressure, the bed layer does not need to be heated during regeneration, and the product purity is high; the equipment is simple, and the operation and the maintenance are simple and convenient; the continuous circulation operation can achieve the automation completely. Therefore, when the new technology comes out, the new technology is concerned by the industrial fields of various countries, competes for development and research, develops rapidly and matures day by day.
The utility model discloses a plasma generator 1 connects on plasma cracker 2, the export of plasma cracker 2 bottom connects cyclone 3 import, cyclone 3 solid material export connects first ash bucket 4, cyclone 3 gaseous material export connects sack cleaner 5 import, sack cleaner 5 solid material export connects second ash bucket 6, first ash bucket 4 and second ash bucket 6 collect carbon black, sack cleaner 5 gaseous material export connects the import of scrubbing tower 7 bottom, scrubbing tower 7 top of the tower export connects PSA device 8 import, PSA device 8 draws hydrogen, and tail gas passes through the pipeline and gets into plasma cracker 2, scrubbing tower 7 upper portion export connects electrostatic precipitator 9 import, electrostatic precipitator 9 gaseous export connects scrubbing tower 7 lower part import, scrubbing tower 7 bottom export and electrostatic precipitator 9 liquid export connect storage tank 10 top import, an outlet at the bottom of the storage tank 10 is connected with an inlet of an infusion pump 11, an outlet of the infusion pump 11 is respectively connected with inlets of a first filter 12 and a second filter 13, filtered solids are dried by a conveyor belt to a dryer 12 to obtain carbon black products, and outlets of the first filter 12 and the second filter 13 are respectively connected with a process water inlet at the top of the washing tower 7 and a cooling water inlet at the lower part of the plasma cracker 2.
The utility model discloses a rich methane gas is through plasma pyrolysis reaction, and process systems that process separation such as rethread cyclone separator, sack cleaner, scrubbing tower, PSA device, filtration, drying purified carbon black and hydrogen obtain.
The utility model discloses think about wonderfully, can effectively improve raw materials hydrocarbon utilization ratio and carbon black yield and for the rich methane gas value-added utilization of china, carbon black technology upgrade provides technical support, be suitable for and widely popularize and apply in this technical field.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (3)
1. A process system for preparing carbon black by cracking methane-rich gas with plasma is characterized in that: the device comprises a cyclone separator (3), a first ash bucket (4), a washing tower (7), a PSA device (8), an electrostatic dust collector (9), a storage tank (10), an infusion pump (11), a first filter (12), a dryer (14), a methane and hydrogen mixed gas conveying pipe (15), a byproduct hydrogen outward conveying pipe (16), a water conveying pipeline (17) and a plasma cracker (2) provided with a plasma generator (1);
the methane and hydrogen mixed gas conveying pipe (15) is connected with an inlet of the plasma cracker (2) and is used for conveying methane and hydrogen mixed gas for the plasma cracker (2), the plasma generator (1) is used for ionizing the hydrogen conveyed into the plasma cracker (2) by the methane and hydrogen mixed gas conveying pipe (15) to generate high temperature, a bottom outlet of the plasma cracker (2) is connected with an inlet of the cyclone separator (3) through a pipeline, and the first ash hopper (4) is connected with a solid material outlet of the cyclone separator (3) and is used for collecting carbon black products;
a gas material outlet of the cyclone separator (3) is connected with a bottom inlet of the washing tower (7) through a pipeline, a tower top outlet of the washing tower (7) is connected with an inlet of the PSA device (8) through a pipeline, a product gas outlet of the PSA device (8) is connected with the byproduct hydrogen outward conveying pipe (16), and a tail gas outlet of the PSA device (8) is connected with the methane and hydrogen mixed gas conveying pipe (15) through a pipeline so as to convey tail gas discharged by the PSA device (8) into the plasma cracker (2);
the upper portion export of scrubbing tower (7) pass through the pipeline with the import of electrostatic precipitator (9) is connected, the gas outlet of electrostatic precipitator (9) pass through the pipeline with the lower part import of scrubbing tower (7) is connected, the top import of storage tank (10) pass through the pipeline respectively with the tower bottom export of scrubbing tower (7) with the liquid outlet of electrostatic precipitator (9) is connected, storage tank (10) pass through conduit (17) respectively with the lower part cooling water import of plasma cracker (2) with the top process water import of scrubbing tower (7) is connected, transfer pump (11) with first filter (12) all locate on conduit (17), and transfer pump (11) with first filter (12) distribute in proper order along the water flow direction, dryer (14) with the solid filtrate export of first filter (12) is connected through the conveyer track and is used for first filter (12) The solid filtrate from the filter (12) is dried to form a carbon black product.
2. The process system for preparing carbon black by plasma cracking of the methane-rich gas as claimed in claim 1, wherein: still include sack cleaner (5) and second ash bucket (6), sack cleaner (5) are located the gaseous material export of cyclone (3) with on the pipeline that the bottom import of scrubbing tower (7) is connected, and the import of sack cleaner (5) through this pipeline with the gaseous material export of cyclone (3) is connected, the gaseous material export of sack cleaner (5) through this pipeline with the bottom import of scrubbing tower (7) is connected, second ash bucket (6) with the solid material export of sack cleaner (5) is connected and is used for collecting the carbon black product.
3. The process system for preparing carbon black by plasma cracking of the methane-rich gas as claimed in claim 2, wherein: the device is characterized by further comprising a second filter (13) arranged on the water conveying pipeline (17), wherein the second filter (13) and the first filter (12) are distributed in parallel, and the dryer (14) is also connected with a solid filtrate outlet of the second filter (13) through a conveying crawler belt and used for drying the solid filtrate filtered by the second filter (13) into a carbon black product.
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| CN201921155408.0U CN210367505U (en) | 2019-07-22 | 2019-07-22 | Process system for preparing carbon black by cracking methane-rich gas with plasma |
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| CN201921155408.0U CN210367505U (en) | 2019-07-22 | 2019-07-22 | Process system for preparing carbon black by cracking methane-rich gas with plasma |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113214683A (en) * | 2021-04-19 | 2021-08-06 | 淄博职业学院 | Process and device for preparing high-quality carbon black by cracking shale gas with plasma |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113214683A (en) * | 2021-04-19 | 2021-08-06 | 淄博职业学院 | Process and device for preparing high-quality carbon black by cracking shale gas with plasma |
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