CN220443793U - Combined type adiabatic shift reactor - Google Patents
Combined type adiabatic shift reactor Download PDFInfo
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- CN220443793U CN220443793U CN202320659437.0U CN202320659437U CN220443793U CN 220443793 U CN220443793 U CN 220443793U CN 202320659437 U CN202320659437 U CN 202320659437U CN 220443793 U CN220443793 U CN 220443793U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000006276 transfer reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a combined type adiabatic conversion reactor, which consists of three parts, namely a steam superheater, an adiabatic conversion furnace and a raw material preheater from bottom to top, can simultaneously realize the purposes of raw material gas preheating, carbon monoxide catalytic reaction and the steam superheater, realizes the integration of heat transfer and chemical reaction, and has the characteristics of compact structure, small occupied area, low equipment cost and the like.
Description
Technical Field
The utility model belongs to the technical field of engineering design and equipment of coal chemical equipment, and particularly relates to a combined type adiabatic shift reactor.
Background
In a coal chemical production plant, raw synthesis gas from a coal gasification unit is mainly composed of CO and H 2 、CO 2 、H 2 S、CH 4 、N 2 And H 2 O and other components are subjected to chemical reaction through a carbon monoxide conversion unit so as to meet the technical requirements of downstream process units. Wherein the main equation of the CO conversion reaction is CO+H 2 O→H 2 +CO 2 The reaction is exothermic.
Typically, the inlet temperature of the raw synthesis gas is required to be increased to 260 ℃ to 280 ℃ before entering the adiabatic reactor, the temperature is increased to about 420 ℃ after entering the shift converter for catalytic reaction, and the obtained high-temperature shift gas further enters a steam superheater for cooling. The feed gas preheater, the adiabatic shift converter and the steam superheater involved in the process are all independent devices and are connected through pipelines.
Therefore, the above-mentioned process can meet the process requirements, but has the problems of large equipment number, large occupied area, large pipe parts, high construction investment and the like.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a combined type adiabatic shift reactor which can simultaneously realize the purposes of preheating raw material gas, catalytic reaction of carbon monoxide and steam superheater, realize the integration of heat transfer and chemical reaction, and has the characteristics of compact structure, small occupied area, low equipment cost and the like. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a modular adiabatic shift reactor, characterized by: the equipment consists of three parts, namely a steam superheater, an adiabatic shift converter and a raw material preheater in sequence from bottom to top.
The technical scheme of the utility model is as follows: the steam superheater is provided with a conversion gas outlet, a saturated steam inlet and a superheated steam outlet.
The technical scheme of the utility model is as follows: the inside of the heat-insulating conversion furnace is provided with a catalyst bed layer, a plurality of thermometer ports and discharge ports which are arranged at different heights.
The technical scheme of the utility model is as follows: the raw material preheater is provided with a raw material gas inlet at the top, a high-temperature shift gas inlet at the lower part and a high-temperature shift gas outlet at the upper part.
The beneficial effects of the utility model are as follows: the combined adiabatic shift reactor consists of three parts, including a steam superheater, an adiabatic shift furnace and a raw material preheater, and can realize the aim of preheating raw material gas, catalyzing CO reaction and steam superheater simultaneously, realize the integration of heat transfer and chemical reaction, and has the characteristics of compact structure, small occupied area, low equipment cost and the like.
Drawings
Fig. 1 is a schematic view of the apparatus of the present utility model.
In the figure: the device comprises a 1-steam superheater, a 2-adiabatic shift converter, a 3-raw material preheater, a 4-catalyst bed layer, an N1-raw material gas inlet, an N2-shift gas outlet, an N3-high temperature shift gas inlet, an N4-high temperature shift gas outlet, an N5-discharge port, an N6-saturated steam inlet, an N7-superheated steam outlet, a T1-1# thermometer port, a T2-2# thermometer port and a T3-3# thermometer port.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
As shown in fig. 1, the equipment consists of three parts, namely a steam superheater (1), an adiabatic shift converter (2) and a raw material preheater (3) in sequence from bottom to top. The steam superheater (1) is provided with a conversion gas outlet (N2), a saturated steam inlet (N6) and a superheated steam outlet (N7); a catalyst bed layer (4), a 1# thermometer port (T1), a 2# thermometer port (T2), a 3# thermometer port (T3) and a discharge port (N5) are arranged in the heat-insulating conversion furnace; the raw material preheater (3) is provided with a raw material gas inlet (N1), a high-temperature conversion gas inlet (N3) and a high-temperature conversion gas outlet (N4).
The utility model has the following specific working processes:
the flow from outside the boundary is 5000Nm 3 Raw synthesis gas/H (temperature 210 ℃ C. Pressure 3.8MPag, where CO 40%, H 2 18%, H 2 O is 36%, the other components are 6%, and the volume fractions are all 6%), the high-temperature conversion gas enters a reactor from a raw gas inlet, the raw gas is heated to 245 ℃ through a tube pass of a raw material preheater and then enters a catalyst bed layer for carbon monoxide conversion reaction, the obtained high-temperature conversion gas enters a tube pass of a steam superheater, is cooled to 320 ℃, is sent to a downstream system from a conversion gas outlet of the steam superheater, and 650kg/h saturated steam (4.0 MPag,252 ℃) is superheated to 385 ℃ and then is sent to a steam pipe network.
The foregoing embodiments and description are merely illustrative of the principles of the present utility model, and are not intended to limit the scope of the utility model, which is susceptible to various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications fall within the scope of the utility model as hereinafter claimed. The utility model is not related in part to the same as or can be practiced with the prior art.
Claims (1)
1. A modular adiabatic shift reactor, characterized by: the equipment consists of three parts, namely a steam superheater (1), an adiabatic shift converter (2) and a raw material preheater (3) in sequence from bottom to top;
the steam superheater (1) is provided with a conversion gas outlet (N2), a saturated steam inlet (N6) and a superheated steam outlet (N7);
a catalyst bed layer (4), a plurality of thermometer ports and discharge ports (N5) which are arranged at different heights are arranged in the heat-insulating shift converter;
the raw material preheater (3) is provided with a raw material gas inlet (N1) positioned at the top, a high-temperature shift gas inlet (N3) positioned at the lower part and a high-temperature shift gas outlet (N4) positioned at the upper part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659437.0U CN220443793U (en) | 2023-03-30 | 2023-03-30 | Combined type adiabatic shift reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659437.0U CN220443793U (en) | 2023-03-30 | 2023-03-30 | Combined type adiabatic shift reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220443793U true CN220443793U (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320659437.0U Active CN220443793U (en) | 2023-03-30 | 2023-03-30 | Combined type adiabatic shift reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220443793U (en) |
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2023
- 2023-03-30 CN CN202320659437.0U patent/CN220443793U/en active Active
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