CN205398571U - Coke oven gas methanation reaction unit - Google Patents
Coke oven gas methanation reaction unit Download PDFInfo
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- CN205398571U CN205398571U CN201620186246.7U CN201620186246U CN205398571U CN 205398571 U CN205398571 U CN 205398571U CN 201620186246 U CN201620186246 U CN 201620186246U CN 205398571 U CN205398571 U CN 205398571U
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- reactor
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- coke oven
- isothermal section
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Abstract
The utility model discloses a coke oven gas methanation reaction unit, including reaction shell (1), reaction shell (1) comprises isothermal section reactor that is located the upper segment and the adiabatic segment reactor that is located the hypomere, isothermal section reactor top sets up feed gas import (2), isothermal section reactor sets up air distributor (3) and inflation tube bank (4) with feed gas import (2) UNICOM, inflation tube bank (4) is lowered the temperature through the refrigerant, and sets up refrigerant import (5) and refrigerant outlet (6) on the isothermal section reactor, adiabatic segment reactor sets up exhausted heat bed layer (7) and its bottom sets up gas outlet (8). The utility model relates to a rationally, provide the new mode that the coke oven gas methanation is reacted, reduced reaction unit's heat transfer area, improved methanation reaction unit's availability factor, had better economic benefits.
Description
Technical field
This utility model relates to the process device of coke-stove gas, and specifically a kind of coke-stove gas reflation cooling after reacting replacing heat, unreacted component in isothermal is restrained enters heat insulation layer and continue the gas employing methanation of coke oven device of reaction.
Background technology
Synthesizing natural gas from coke oven gas is that coke-stove gas comprehensive utilization opens new way, owing to gas employing methanation of coke oven reaction is strong exothermal reaction, rationally removes the heat of methanation reaction release, makes temperature of reactor control in certain limit significant.Current synthesizing natural gas from coke oven gas reaction unit mainly has isotherm formula and heat-insulating two kinds, and needed for isothermal reaction device, heat exchange area is big, and cost of investment is higher, constrains the application in industrial processes of isothermal reaction device；Widely used in current industry is heat-insulating reaction unit, the gas after portion of methane is made to come back to reactor to reduce the carbon content of unstripped gas by recycle compressor, reach to control the purpose of reaction bed temperature, the problem that heat-insulating reaction unit exists energy consumption height, reactor service efficiency is low.
For current gas employing methanation of coke oven reaction unit high energy consumption, inefficient problem, a kind of low energy consumption of exploitation, high efficiency reaction unit are significant to China's energy-saving and emission-reduction implementation.
Summary of the invention
This utility model is in order to solve the problem that current gas employing methanation of coke oven reaction unit efficiency is low, energy consumption is high, it is provided that a kind of feasible utilize bundle of reaction tubes heat exchange the swell refrigeration reaction unit to reduce heat exchange area, avoid circulating air to use.
This utility model adopts the following technical scheme that realization:
A kind of gas employing methanation of coke oven reaction unit, including reactor shell, described reactor shell is made up of the isothermal section reactor being positioned at epimere and the adiabatic section reactor being positioned at hypomere；Described isothermal section reactor head arranges raw material gas inlet, it is provided with the gas distributor with raw material gas inlet UNICOM in described isothermal section reactor and expands tube bank, described expansion tube bank is lowered the temperature by coolant, and arranges coolant import and refrigerant exit on isothermal section reactor；Arrange in the reactor of described adiabatic section adiabatic bed and its bottom gas outlet is set.
This gas employing methanation of coke oven reaction unit makes coke-stove gas restrain even into the expansion of reaction unit epimere by gas distributor, coke-stove gas is in the expansion equipped with catalyst is restrained in course of reaction, heat exchange cooling is carried out by passing into coolant continuously, gas after heat exchange expands cooling further in expansion tube bank outlet, and the gas after two grades of coolings enters reaction unit adiabatic section and fully reacts.Can significantly lower the temperature after the expanded tube bank heat exchange of gas, expansion two grades cooling, expand cooling and decrease the heat exchange area of tube bank, gas after cooling enters back into adiabatic section reaction, can effectively prevent bed temperature runaway, prolonged application for reaction unit provides safety guarantee, effectively extends the service life of catalyst.
Advantage of the present utility model is as follows:
1, the reaction unit of this gas employing methanation of coke oven is that gas employing methanation of coke oven reaction provides a kind of new way, solves that gas employing methanation of coke oven reaction unit heat exchange area is big, high energy consumption, inefficient problem.
2, this methanation reaction device utilizes by coolant and expands tube bank classification cooling so that reacted gas temperature maintains zone of reasonableness.
3, this methanation reaction device, takes full advantage of the feature expanding tube bank swell refrigeration, decreases the heat exchange area of reaction unit, and the gas after cooling can carry out methanation reaction further in adiabatic section, has saved reaction unit cost of investment.
When being embodied as, epimere (isothermal section) a part of heat at the reaction unit of gas employing methanation of coke oven is removed by coolant, and another part heat is removed by expansion, decreases the heat exchange area of tube bank, reduces cost of investment, has bigger popularization and application space.
This utility model is reasonable in design, it is provided that the new paragon of gas employing methanation of coke oven reaction, reduces the heat exchange area of reaction unit, improves the service efficiency of methanation reaction device, has good economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-reactor shell, 2-raw material gas inlet, 3-gas distributor, 4-expands tube bank, 5-coolant import, 6-refrigerant exit, 7-thermal insulation bed, 8-gas outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.
A kind of gas employing methanation of coke oven reaction unit, as it is shown in figure 1, include reactor shell 1, described reactor shell 1 is made up of the isothermal section reactor being positioned at epimere and the adiabatic section reactor being positioned at hypomere；Described isothermal section reactor head (i.e. the top of reactor shell 1) arranges raw material gas inlet 2, gas distributor 3 with raw material gas inlet 2 UNICOM is set in described isothermal section reactor and expands tube bank 4, described expansion tube bank 4 is lowered the temperature by coolant, and isothermal section reactor arranges coolant import 5 and refrigerant exit 6, coolant adopts the mode of bottom in and top out；Arrange in the reactor of described adiabatic section adiabatic bed 7 and its bottom (i.e. the bottom of reactor shell 1) gas outlet 8 is set.
This methanation device is characterized as being and is made up of epimere (isothermal section) and hypomere (adiabatic section) two reactor, unstripped gas passes through coolant continuous cooling in course of reaction in epimere is equipped with the expansion tube bank of catalyst, expansion classification is lowered the temperature, gas after cooling enters reaction unit hypomere and continues methanation reaction, the reactor shell 1 of methanation device is used for completely cutting off reaction unit with extraneous, unstripped gas enters reaction unit from raw material gas inlet 2, after gas distributor 3 is uniformly distributed, enter expansion tube bundle 4 react, coolant enters from the coolant import 5 of reaction unit epimere, refrigerant exit 6 flows out, gas after coolant is lowered the temperature expands cooling further in expansion tube outlet.The heat of methanation reaction release is removed in part through coolant, and another part is removed by expansion, and this reactor decreases the heat exchange area of isothermal section, reduces cost of investment.Not yet enter adiabatic reactor layer 7 after the gas of complete reaction two grades cooling and continue reaction, fully enter subsequent processing through gas outlet 8 after reaction.
Finally it should be noted that; above example is only in order to illustrate the technical solution of the utility model and unrestricted; although being described in detail with reference to this utility model embodiment; it will be understood by those within the art that; the technical solution of the utility model is modified or equivalent replacement; without departure from the spirit and scope of the technical solution of the utility model, it all should be contained in claims of the present utility model.
Claims (1)
1. a gas employing methanation of coke oven reaction unit, it is characterised in that: including reactor shell (1), described reactor shell (1) is made up of the isothermal section reactor being positioned at epimere and the adiabatic section reactor being positioned at hypomere；Described isothermal section reactor head arranges raw material gas inlet (2), it is provided with the gas distributor (3) with raw material gas inlet (2) UNICOM in described isothermal section reactor and expands tube bank (4), described expansion tube bank (4) is lowered the temperature by coolant, and arranges coolant import (5) and refrigerant exit (6) on isothermal section reactor；Arrange in the reactor of described adiabatic section adiabatic bed (7) and its bottom gas outlet (8) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620186246.7U CN205398571U (en) | 2016-03-11 | 2016-03-11 | Coke oven gas methanation reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620186246.7U CN205398571U (en) | 2016-03-11 | 2016-03-11 | Coke oven gas methanation reaction unit |
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| Publication Number | Publication Date |
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| CN205398571U true CN205398571U (en) | 2016-07-27 |
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| CN201620186246.7U Expired - Fee Related CN205398571U (en) | 2016-03-11 | 2016-03-11 | Coke oven gas methanation reaction unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106554831A (en) * | 2016-11-09 | 2017-04-05 | 北京科技大学 | A kind of methane purification and the equipment and technique of carbon dioxide synchronization methanation conversion |
| CN107974318A (en) * | 2016-10-25 | 2018-05-01 | 中国石化工程建设有限公司 | Compound tower-type methanation device and methanation process |
| CN109205558A (en) * | 2017-07-06 | 2019-01-15 | 中国石化工程建设有限公司 | A kind of converting means and transform method for natural gas from coal |
| CN111349498A (en) * | 2020-03-25 | 2020-06-30 | 湖南安淳高新技术有限公司 | Isothermal methanation reaction system and process |
-
2016
- 2016-03-11 CN CN201620186246.7U patent/CN205398571U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974318A (en) * | 2016-10-25 | 2018-05-01 | 中国石化工程建设有限公司 | Compound tower-type methanation device and methanation process |
| CN107974318B (en) * | 2016-10-25 | 2020-04-03 | 中国石化工程建设有限公司 | Composite tower type methanation device and methanation process |
| CN106554831A (en) * | 2016-11-09 | 2017-04-05 | 北京科技大学 | A kind of methane purification and the equipment and technique of carbon dioxide synchronization methanation conversion |
| CN106554831B (en) * | 2016-11-09 | 2020-04-24 | 北京科技大学 | Equipment and process for purifying methane and synchronously methanation-transforming carbon dioxide |
| CN109205558A (en) * | 2017-07-06 | 2019-01-15 | 中国石化工程建设有限公司 | A kind of converting means and transform method for natural gas from coal |
| CN109205558B (en) * | 2017-07-06 | 2020-08-04 | 中国石化工程建设有限公司 | Conversion device and conversion method for coal-based natural gas |
| CN111349498A (en) * | 2020-03-25 | 2020-06-30 | 湖南安淳高新技术有限公司 | Isothermal methanation reaction system and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20170311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |