CN102634372B - Gasification method and device for preparing low-tar industrial coal gas by two-section furnace of fixed bed - Google Patents

Gasification method and device for preparing low-tar industrial coal gas by two-section furnace of fixed bed Download PDF

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CN102634372B
CN102634372B CN201210099856.XA CN201210099856A CN102634372B CN 102634372 B CN102634372 B CN 102634372B CN 201210099856 A CN201210099856 A CN 201210099856A CN 102634372 B CN102634372 B CN 102634372B
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gas
sections
fixed bed
stoves
high temperature
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CN102634372A (en
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张聚伟
汪印
曾玺
武荣成
许光文
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Institute of Process Engineering of CAS
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Abstract

The invention relates to the field of utilization of clean energies of coal and particularly relates to a gasification method and a gasification device for preparing low-tar industrial coal gas by a two-section furnace of a fixed bed. The gasification method for preparing the low-tar industrial coal gas by the two-section furnace of the fixed bed comprises the following steps of: (1) simultaneously introducing upper section of coal gas containing tar of the upper section of the two-section furnace of the fixed bed and gas containing oxygen into a high-temperature cracking reformer (1) to generate a high-temperature cracking reaction to generate light gas; and (2) enabling the upper-section coal gas passing through the high-temperature cracking reformer to enter high-temperature heat-exchange equipment (2); and meanwhile, introducing high-temperature oxygen-containing gas or water. According to the gasification method and the gasification device for preparing low-tar industrial coal gas by the two-section furnace of the fixed bed, heat of the tar, which generates phenol water, can be used for carrying out high-temperature cracking and reformation on the tar in the upper-section coal gas of the two-section furnace of the fixed bed; and a large part of sensible heat in the high-temperature coal gas is recycled so that the influence on the total energy utilization efficiency of the gasification system of the two-section furnace is small.

Description

A kind of two sections of stove gasification process of fixed bed and device of preparing low tar industrial gas
Technical field
The clean energy that the present invention relates to coal utilizes field, particularly, relate to a kind of two sections of stove gasification process of fixed bed and device of preparing low tar industrial gas, particularly a kind of method of utilizing tar Pintsch process and reformation removes method and the device that contained tar in two sections of stove epimere gas of fixed bed is prepared low tar industrial gas.
Background technology
Gasification refers to taking carbonaceous fuel (coal, coal tar or biomass etc.) as raw material, make vaporized chemical with oxygen (air, oxygen enrichment or industrial pure oxygen), water vapor or hydrogen etc., in specific equipment, under certain temperature and pressure, there is series of chemical, by solid fuel conversion for containing CO, H 2, CH 4deng the process of inflammable gas.Day by day in short supply along with world's Sweet natural gas, petroleum resources, countries in the world one after another the gasification of coal or biomass as an alternative the main method of the energy carried out process exploitation and study on the industrialization.Existing gasification technology is divided into fixed bed gasification, fluidized-bed gasification and entrained flow gasification three major types conventionally.Fixed bed gasification, also claim moving-bed gasification refer to coal with generate the circulation of vital energy in the wrong direction in folding process gradually by a kind of technology that vaporized chemical gasified feeding from vapourizing furnace bottom, the sensible heat that its gasification generates gas is used effectively, the temperature out that generates gas is low, the slag carbon content of discharging from vapourizing furnace bottom is low, and in fact fixed bed gasification has represented most effective so far gasification technology.Typical fixed bed gasification technology comprises pressurization Lurgi stove and normal pressure two-stage gasifier, is widely used in the world.In China various places, the especially ground such as Guangdong, Shandong, Guangxi, Henan, due to the rise of a large amount of Aluminums and ceramics, has built thousands of normal pressure two-stage gasifiers for the production of industrial gas.
Two-stage gasifier is divided into two kinds, two sections of stoves of mixture generator coal gas and two sections of stoves of water-gas.Current, two sections of stove application of mixture generator coal gas are commonplace, two sections of stoves of mixture generator coal gas are taking coal as raw material, added by top, enter retort section (being epimere), rely on the heat of hypomere to make its heating, carry out low-temperature pyrolysis (temperature is lower than 500 DEG C), produce coal gas and the tar of low-temperature pyrolysis, then with rise to partial gasification section coal gas from hypomere and mix gas in upper segment.Coal becomes semicoke after low-temperature pyrolysis, dropping to gasification section is oxidized and reduction reaction with the vaporized chemical (air+steam) blasting, generate hypomere coal gas, this coal gas part enters retort section, to coal direct heating, another part is passed to the coal in retort section by the partition wall being made up of vertical channel by heat, then discharges.
In two sections of furnace bindings, be divided into two sections, generate gas and be also divided into two kinds, i.e. the gas in upper segment of different calorific values and hypomere coal gas.The temperature out of hypomere coal gas is within 500-600 DEG C of scope, hardly containing tar (tar all produces at epimere), considerably less containing phenol amount in washing water, be easy to process, and the temperature out of gas in upper segment is 120 DEG C of left and right, although because temperature is lower, can avoid directly washing and with indirectly cooling, but due in the link of gas purification, the continuous decline of temperature, so being rich in moisture in the epimere gas of tar just constantly condenses, in this condensed water containing phenol amount higher, at a tar removing, secondary is except light oil, in the water seal of indirect cool tower and gas compressor, all can have containing phenol condensed water and discharge.Generally, the 1 ton of coal that gasifies can separate out 50-80kg containing phenol condensed water (containing phenol amount > 6000mg/L), although amount is not too large, very harmful, must not arrange outward.At present, be mainly burning method to the processing mode of this phenol water, adopting tar is main fuel, after sneaking into phenol water, burn, but this mode has not only increased the complicacy of system, and need many heats to carry out the moisture in combustion by evaporation, so utilising efficiency is not high.
Summary of the invention
The present invention solves in above-mentioned two sections of stove gasification process production course of gas to produce the problem containing phenol condensed water, and a kind of two sections of stove gasification process of fixed bed and device of preparing low tar industrial gas is provided.
Two sections of stove gasification process of fixed bed of preparing low tar industrial gas of the present invention, comprise the following steps:
1) gas in upper segment that is rich in tar of two sections of stove epimeres of fixed bed and oxygen-containing gas are passed into Pintsch process reformer simultaneously, make gas in upper segment temperature bring up to 800-1500 DEG C, so that tar generation Pintsch process reaction wherein generates light gas;
2) make to enter high temperature heat-exchange equipment through the gas in upper segment of Pintsch process reformer, gas in upper segment temperature is reduced to 100 DEG C of following rear discharges.
The gas in upper segment that is rich in tar (outflow temperature is 120 DEG C of left and right) from two sections of stove epimeres first passes into Pintsch process reformer, oxygen-containing gas also passes into Pintsch process reformer simultaneously, and in these oxygen-containing gass and gas in upper segment, contained combustibleconstituents (comprises H 2, CO, CH 4and other hydrocarbon gas) generation combustion reactions release of heat, make gas in upper segment temperature bring up to 800-1500 DEG C from 120 DEG C of left and right, make the reaction of the macromolecular organic compound generation Pintsch process in contained tar in gas in upper segment, generate light gas, comprise CH 4, CO, CO 2deng.Meanwhile, under hot environment, tar also can with gas in upper segment in H 2o and CO 2there is following reforming reaction and transformationreation:
Steam reformation: C nh m+ nH 2o → nCO+ (n+m/2) H 2(1)
Dry gas is reformed: C nh m+ nCO 2→ (2n) CO+ (m/2) H 2(2)
Hydrosphere transformation: CO+H 2o → CO 2+ H 2(3)
The high temperature of process Pintsch process and reformation is without tar gas in upper segment, enter high temperature heat-exchange equipment, heat is passed to normal temperature oxygen-containing gas or water, make the temperature of oxygen-containing gas or water (steam) be elevated to 200-800 DEG C from normal temperature, the temperature of mixed gas is reduced to below 100 DEG C from 800-1500 DEG C, then enters other treatment facility in downstream.
According to two sections of stove gasification process of fixed bed of the present invention, wherein, in described high temperature heat-exchange equipment, pass into normal temperature oxygen-containing gas or water, for the gas in upper segment of process Pintsch process reformer is lowered the temperature;
Wherein, normal temperature oxygen-containing gas is warming up to after 200-800 DEG C, and the oxygen-containing gas after part heats up passes into Pintsch process reformer, and the oxygen-containing gas after another part heats up passes into the hypomere of two sections of stoves of fixed bed, participates in char Gasification reaction as oxygenous agent;
Or water is warming up to after 200-800 DEG C, the water vapour after intensification all passes into the hypomere of two sections of stoves of fixed bed, participates in char Gasification reaction as vaporized chemical.
In high temperature heat-exchange equipment, if make gas in upper segment and oxygen-containing gas heat exchange, an oxygen-containing gas part after temperature being raise passes into Pintsch process reformer provides burning required oxygen, the gasification section that another part passes into two sections of stoves participates in char Gasification reaction as oxygenous agent, if make gas in upper segment and water heat exchange, the gasification section that water vapor after temperature raises all passes into two sections of stoves is as the reaction of vaporized chemical participation char Gasification.
According to two sections of stove gasification process of fixed bed of the present invention, wherein, described high temperature heat-exchange equipment is interchanger or waste heat boiler.
According to two sections of stove gasification process of fixed bed of the present invention, wherein, described oxygen-containing gas is the gas mixture of air, oxygen or air and oxygen.
The present invention also provides a kind of two sections of furnace gas gasifying devices of fixed bed of preparing low tar industrial gas, comprise: Pintsch process reformer 1, high temperature heat-exchange equipment 2, two sections of stoves 3 of fixed bed, the epimere of two sections of stoves 3 of described fixed bed be linked in sequence Pintsch process reformer 1 and high temperature heat-exchange equipment 2.
According to device of the present invention, wherein, described device also comprises cyclonic separator 4, two sections of stove hypomeres of fixed bed be linked in sequence cyclonic separator 4 and another high temperature heat-exchange equipment 2.
According to device of the present invention, wherein, after described Pintsch process reformer 1 is in parallel with cyclonic separator 4, be connected with same high temperature heat-exchange equipment 2.
Two sections of furnace gas gasifying device groups of fixed bed of preparing low tar industrial gas of the present invention, comprise Pintsch process reformer 1, high temperature heat-exchange equipment 2 and two sections of stoves 3 of some fixed beds, wherein, after two sections of stove 3 parallel connections of some fixed beds, epimere be linked in sequence Pintsch process reformer 1 and high temperature heat-exchange equipment 2.
According to device group of the present invention, wherein, described device group also comprises cyclonic separator 4, and after two sections of stove 3 parallel connections of some fixed beds, the hypomere cyclonic separator 4 that is linked in sequence closes another high temperature heat-exchange equipment 2.
According to device group of the present invention, wherein, after described Pintsch process reformer 1 is in parallel with cyclonic separator 4, be connected with same high temperature heat-exchange equipment 2.
Two sections of stove gasification process of fixed bed and the device of preparing low tar industrial gas of the present invention, only utilize contained tar (calorific value can reach 40000kJ/kg) and oxygen-containing gas in the gas in upper segment of above-mentioned two sections of stoves to carry out the heat that combustion reactions discharges and just the temperature of gas in upper segment can be brought up to 1300 DEG C of left and right from 120 DEG C, meanwhile, again heat has been passed to normal temperature oxygen-containing gas or water through coal gas of high temperature.Therefore, make the gas in upper segment temperature most of heat consuming that raises obtain recovery by high temperature heat-exchange equipment again.In addition, the required H of reforming reaction 2o and CO 2be all the contained gaseous fraction of gas in upper segment itself, reforming reaction consumes the H in gas in upper segment 2o can reduce the waste water that condenses of downstream coal gas treatment facility, consumes the CO in gas in upper segment simultaneously 2also be conducive to the raising of gas in upper segment calorific value.Therefore, the present invention has utilized this can cause the heat of the tar of phenol water generates itself, contained tar in the gas in upper segment of two sections of stoves of fixed bed has been carried out to Pintsch process and reformation, two sections of stove gasification process of fixed bed of preparing low tar industrial gas are formed, but owing to having reclaimed the most of sensible heat in coal gas of high temperature, so little on the overall efficiency of energy utilization impact of above-mentioned two sections of stove gasification systems.
Brief description of the drawings
Fig. 1 is the simple process figure of two sections of stove gasification process of fixed bed of preparing low tar industrial gas of the present invention.
Fig. 2 is the structural representation one of two sections of furnace gas gasifying devices of fixed bed of preparing low tar industrial gas of the present invention, wherein, two sections of Pintsch process reformers of stove configuration of a fixed bed and two sections of stove gas in upper segment of fixed bed and hypomere coal gas separately pass into a high temperature heat-exchange equipment separately.
Fig. 3 is the structural representation two of two sections of furnace gas gasifying devices of fixed bed of preparing low tar industrial gas of the present invention, wherein, two sections of Pintsch process reformers of stove configuration of a fixed bed and gas in upper segment pass into a high temperature heat-exchange equipment together with after the mixing of hypomere coal gas.
Fig. 4 is two sections of furnace gas gasifying device groups one of fixed bed of preparing low tar industrial gas of the present invention, wherein, two sections of Pintsch process reformers of stove configuration of many (more than two) fixed beds and two sections of stove gas in upper segment of fixed bed and hypomere coal gas separately pass into a high temperature heat-exchange equipment separately.
Fig. 5 is two sections of furnace gas gasifying device groups two of fixed bed of preparing low tar industrial gas of the present invention, wherein, two sections of Pintsch process reformers of stove configuration of many (more than two) fixed beds and gas in upper segment pass into a high temperature heat-exchange equipment together with after the mixing of hypomere coal gas.
Accompanying drawing mark
1. Pintsch process reformer 2. high temperature heat-exchange equipments
3. two sections of stove 4. cyclonic separators of fixed bed
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Two sections of stove gasification process of fixed bed of preparing low tar industrial gas of the present invention, as shown in Figure 1, comprise the following steps: 1) gas in upper segment that is rich in tar of two sections of stove epimeres of fixed bed and oxygen-containing gas are passed into Pintsch process reformer simultaneously, make gas in upper segment temperature bring up to 800-1500 DEG C, so that tar generation Pintsch process reaction wherein generates light gas; 2) make to enter high temperature heat-exchange equipment through the gas in upper segment of Pintsch process reformer, gas in upper segment temperature is reduced to 100 DEG C of following rear discharges.
In described high temperature heat-exchange equipment, pass into normal temperature oxygen-containing gas or water, for the gas in upper segment of process Pintsch process reformer is lowered the temperature; Wherein, if gas in upper segment and the heat exchange of normal temperature oxygen-containing gas, normal temperature oxygen-containing gas is warming up to after 200-800 DEG C, oxygen-containing gas after part heats up passes into Pintsch process reformer, oxygen-containing gas after another part heats up passes into the hypomere of two sections of stoves of fixed bed, participates in char Gasification reaction as oxygenous agent; If gas in upper segment and water heat exchange, water is warming up to after 200-800 DEG C, and the water vapour after intensification all passes into the hypomere of two sections of stoves of fixed bed, participates in char Gasification reaction as vaporized chemical.Above-mentioned high temperature heat-exchange equipment is interchanger or waste heat boiler.Above-mentioned oxygen-containing gas is the gas mixture of air, oxygen or air and oxygen.
Two sections of furnace gas gasifying devices of fixed bed (Fig. 2) of preparing low tar industrial gas of the present invention, comprise: Pintsch process reformer 1, high temperature heat-exchange equipment 2, two sections of stoves 3 of fixed bed, the epimere of two sections of stoves 3 of the described fixed bed Pintsch process reformer 1 that is linked in sequence closes high temperature heat-exchange equipment 2.Described device also comprises cyclonic separator 4, two sections of stove hypomeres of fixed bed be linked in sequence cyclonic separator 4 and another high temperature heat-exchange equipment 2.The Pintsch process reformer 1 of device of the present invention can also parallel connection rear be connected with same high temperature heat-exchange equipment 2 (Fig. 3) with cyclonic separator 4.
Two sections of furnace gas gasifying device groups of fixed bed (Fig. 4) of preparing low tar industrial gas of the present invention, comprise Pintsch process reformer 1, high temperature heat-exchange equipment 2 and two sections of stoves 3 of some fixed beds, after two sections of stove 3 parallel connections of some fixed beds, epimere be linked in sequence Pintsch process reformer 1 and high temperature heat-exchange equipment 2.Described device group also comprises cyclonic separator 4, after two sections of stove 3 parallel connections of some fixed beds, and hypomere be linked in sequence cyclonic separator 4 and another high temperature heat-exchange equipment 2.Pintsch process reformer 1 of the present invention can also parallel connection rear be connected with same high temperature heat-exchange equipment 2 (Fig. 5) with cyclonic separator 4.
Embodiment 1
As shown in Figure 2, two sections of furnace gas gasifying devices of fixed bed of preparing low tar industrial gas of the present invention, configure Pintsch process reformers and gas in upper segment and hypomere coal gas by two sections of stoves of a fixed bed and separately pass into a high temperature heat-exchange equipment separately.The epimere destructive distillation of coal in two sections of stoves 3 of fixed bed generates gas in upper segment, and outflow temperature is 120 DEG C, and the semicoke after destructive distillation generates hypomere coal gas in hypomere gasification, and outflow temperature is between 500 DEG C and 600 DEG C.Gas in upper segment is introduced into a Pintsch process reformer 1, oxygen-containing gas is also passed into combustibleconstituents generation combustion reactions in Pintsch process reformer 1 and gas in upper segment simultaneously, make the temperature of gas in upper segment bring up to 800-1500 DEG C, thereby make the coal-tar middle oil generation Pintsch process of gas in upper segment and reforming reaction.Then, the gas in upper segment after generation Pintsch process and reforming reaction enters high temperature heat-exchange equipment 2 and carries out heat exchange with normal temperature oxygen-containing gas or water, makes the temperature of oxygen-containing gas or water be elevated to 200-800 DEG C of left and right.If use the heat exchange of normal temperature oxygen-containing gas, a high temperature oxygen-containing gas part is passed in Pintsch process reformer 1 with gas in upper segment in combustibleconstituents generation combustion reactions, another part passes into two sections of stoves of fixed bed, 3 hypomeres and participates in char Gasifications reaction; If make water heat exchange, water vapor is all passed into the hypomere of two sections of stoves 3 of fixed bed, participate in char Gasification reaction as vaporized chemical.Simultaneously, hypomere coal gas after cyclonic separator 4 dedustings enters another high temperature heat-exchange equipment 2 and carries out heat exchange with normal temperature air, make the temperature of air be elevated to 200-500 DEG C of left and right, these high temperature airs can pass into two sections of stoves of fixed bed, 3 hypomeres and participate in char Gasification reaction.Gas in upper segment and hypomere coal gas are respectively after high temperature heat-exchange equipment 2, and temperature drops to below 100 DEG C, then enters the treatment facility in downstream.The tar decreasing ratio of the present embodiment can reach more than 95%.
Embodiment 2
As shown in Figure 3, two sections of furnace gas gasifying devices of fixed bed of preparing low tar industrial gas of the present invention pass into a high temperature heat-exchange equipment by two sections of Pintsch process reformers of stove configuration of a fixed bed and gas in upper segment together with after the mixing of hypomere coal gas.Two sections of stove gasification process of the fixed bed of preparing low tar industrial gas of the present embodiment, together with after generation Pintsch process is mixed with the hypomere coal gas after cyclonic separator 4 dedustings with the gas in upper segment after reforming reaction, pass into a high temperature heat-exchange equipment 2, then carry out heat exchange with high temperature oxygen-containing gas, other step and flow process below and processing parameter are with embodiment 1.The tar decreasing ratio of the present embodiment can reach more than 95%.
Embodiment 3
As shown in Figure 4, two sections of furnace gas gasifying device groups of fixed bed of preparing low tar industrial gas of the present invention, configure Pintsch process reformers and gas in upper segment and hypomere coal gas by two sections of stoves of many (more than two) fixed beds and separately pass into a high temperature heat-exchange equipment separately.Two sections of stove gasification process of the fixed bed of preparing low tar industrial gas of the present embodiment, adopt two sections of stoves of many (more than two) fixed beds 3 to carry out parallel connection, the gas in upper segment that two sections of stoves 3 of many fixed beds produce is aggregated into separately and enters in a Pintsch process reformer 1 and a high temperature heat-exchange equipment 2 after a main pipe rail, and the hypomere coal gas that two sections of stoves 3 of many fixed beds produce enters in a cyclonic separator 4 and a high temperature heat-exchange equipment 2 after being also aggregated into a main pipe rail, other step and flow process below and processing parameter are with embodiment 1.The tar decreasing ratio of the present embodiment can reach more than 95%.
Embodiment 4
As shown in Figure 5, two sections of furnace gas gasifying device groups of fixed bed of preparing low tar industrial gas of the present invention pass into a high temperature heat-exchange equipment by two sections of Pintsch process reformers of stove configuration of many (more than two) fixed beds and gas in upper segment together with after the mixing of hypomere coal gas.Two sections of stove gasification process of the fixed bed of preparing low tar industrial gas of the present embodiment, adopt two sections of stoves of many (more than two) fixed beds 3 to carry out parallel connection, the gas in upper segment that two sections of stoves 3 of many fixed beds produce is aggregated into separately and enters in a Pintsch process reformer 1 after a main pipe rail, and the hypomere coal gas that two sections of stoves 3 of many fixed beds produce enters in a cyclonic separator 4 after being also aggregated into a main pipe rail, then gas in upper segment enters in a high temperature heat-exchange equipment 2 together with after the mixing of hypomere coal gas, other step and flow process below and processing parameter are with embodiment 1.The tar decreasing ratio of the present embodiment can reach more than 95%.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is modified or is equal to replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.

Claims (5)

1. two sections of stove gasification process of fixed bed of preparing low tar industrial gas, is characterized in that, comprise the following steps:
1) gas in upper segment that is rich in tar of two sections of stove epimeres of fixed bed and oxygen-containing gas are passed into Pintsch process reformer simultaneously, make gas in upper segment temperature bring up to 800-1500 DEG C, so that tar generation Pintsch process reaction wherein generates light gas;
2) make to enter high temperature heat-exchange equipment through the gas in upper segment of Pintsch process reformer, gas in upper segment temperature is reduced to 100 DEG C of following rear discharges;
In described high temperature heat-exchange equipment, pass into normal temperature oxygen-containing gas or water, for the gas in upper segment of process Pintsch process reformer is lowered the temperature;
Wherein, normal temperature oxygen-containing gas is warming up to after 200-800 DEG C, and the oxygen-containing gas after part heats up passes into Pintsch process reformer, and the oxygen-containing gas after another part heats up passes into the hypomere of two sections of stoves of fixed bed, participates in char Gasification reaction as oxygenous agent;
Or water is warming up to after 200-800 DEG C, the water vapour after intensification all passes into the hypomere of two sections of stoves of fixed bed, participates in char Gasification reaction as vaporized chemical.
2. two sections of stove gasification process of fixed bed according to claim 1, is characterized in that, described high temperature heat-exchange equipment is interchanger or waste heat boiler.
3. two sections of stove gasification process of fixed bed according to claim 1, is characterized in that, described oxygen-containing gas is the gas mixture of air, oxygen or air and oxygen.
4. prepare two sections of furnace gas gasifying devices of fixed bed of low tar industrial gas for one kind, comprise: Pintsch process reformer (1), high temperature heat-exchange equipment (2), two sections of stoves of fixed bed (3) and cyclonic separator (4), it is characterized in that, the epimere of two sections of stoves of described fixed bed (3) be linked in sequence Pintsch process reformer (1) and high temperature heat-exchange equipment (2), two sections of stoves of described fixed bed (3) hypomere be linked in sequence cyclonic separator (4) and another high temperature heat-exchange equipment (2);
Or, the epimere of two sections of stoves of described fixed bed (3) connects Pintsch process reformer (1), two sections of stoves of described fixed bed (3) hypomere connects cyclonic separator (4), after described Pintsch process reformer (1) is in parallel with cyclonic separator (4), is connected with same high temperature heat-exchange equipment (2).
5. prepare two sections of furnace gas gasifying device groups of fixed bed of low tar industrial gas for one kind, comprise Pintsch process reformer (1), high temperature heat-exchange equipment (2), cyclonic separator (4) and two sections of stoves of some fixed beds (3), it is characterized in that, after two sections of stoves of some fixed beds (3) parallel connection, epimere be linked in sequence Pintsch process reformer (1) and high temperature heat-exchange equipment (2), the hypomere of two sections of stoves of described fixed bed (3) be linked in sequence cyclonic separator (4) and another high temperature heat-exchange equipment (2);
Or, after two sections of stoves of some fixed beds (3) parallel connection, the epimere of two sections of stoves of described fixed bed (3) connects Pintsch process reformer (1), two sections of stoves of described fixed bed (3) hypomere connects cyclonic separator (4), after described Pintsch process reformer (1) is in parallel with cyclonic separator (4), is connected with same high temperature heat-exchange equipment (2).
CN201210099856.XA 2012-04-06 2012-04-06 Gasification method and device for preparing low-tar industrial coal gas by two-section furnace of fixed bed Expired - Fee Related CN102634372B (en)

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