CN112480968A - Fluidized bed gasification furnace and gasification process - Google Patents
Fluidized bed gasification furnace and gasification process Download PDFInfo
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- CN112480968A CN112480968A CN202011264480.4A CN202011264480A CN112480968A CN 112480968 A CN112480968 A CN 112480968A CN 202011264480 A CN202011264480 A CN 202011264480A CN 112480968 A CN112480968 A CN 112480968A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention provides a fluidized bed gasification furnace and a gasification process, comprising the following steps: the gasification reaction section and the oxygen-enriched combustion section are sequentially communicated from top to bottom; the upper part and the lower part of the gasification reaction section are respectively provided with a raw material coal inlet loaded with a catalyst and a plurality of gasification agent nozzles, and each gasification agent nozzle is obliquely and upwards arranged; the wall surface of the oxygen-enriched combustion section is provided with a plurality of oxygen nozzles, and each oxygen nozzle is obliquely arranged downwards along the wall surface and extends into the oxygen-enriched combustion section to convey oxygen to the oxygen-enriched combustion section, so that ash and slag generated by the gasification reaction section are subjected to combustion reaction with the oxygen, a large amount of heat is discharged, a high-temperature region is formed, and the ash and slag containing the catalyst are melted into a liquid state at high temperature. The invention ensures that the oxygen and the gasified ash fully generate combustion reaction to generate a large amount of heat, provides heat for the gasification reaction section, ensures that the ash is discharged in a liquid state, improves the adaptability of coal types, and realizes harmless discharge of the ash.
Description
Technical Field
The invention relates to the technical field of coal gasification, in particular to a fluidized bed gasification furnace and a gasification process.
Background
The fluidized bed coal catalytic gasification belongs to the third generation coal gasification technology, and the activity of the coal gasification reaction can be effectively improved by adding a catalyst into coal, three reactions of synchronous catalytic coal gasification, methanation and transformation are carried out synchronously, the heat coupling of heat absorption and desorption reactions is achieved, and the system energy efficiency is greatly improved. Therefore, the operation temperature of the gasification furnace can be effectively reduced, and the methane content at the outlet of the gasification furnace is increased.
Salts of the alkali metals potassium, sodium and alkaline earth metal calcium are good coal gasification catalysts. The alkaline industrial waste such as chemical strong brine, papermaking black liquor and the like contains a large amount of alkali metal catalytic active ingredients, is a good catalyst raw material, and does not need to be matched with a corresponding catalyst recovery working section due to low cost. Because of the existing catalytic gasification fluidized bed solid-state slagging process, some alkali metals and trace heavy metal elements in the alkaline waste exist in a soluble form, and direct discharge causes pollution to the environment, a corresponding recovery working section is also needed to be matched, the main purpose is to achieve harmless discharge of ash slag, and extra cost is undoubtedly increased when the industrial waste is used for catalytic gasification.
Meanwhile, the addition of the alkali metal and alkaline earth metal catalysts can reduce the melting point of the coal ash and aggravate the risk of slag bonding of the gasification furnace. Therefore, the coal used as the raw material for catalytic gasification has certain requirements on the melting point of coal ash, and the operation of the coal with low ash melting point can cause slag bonding of the gasification furnace, thereby limiting the application range of the coal for gasification.
Disclosure of Invention
In view of the above, the invention provides a fluidized bed gasification furnace and a gasification process, and aims to solve the problems that the discharge of alkali metal and alkaline earth metal catalysts in the existing gasification process pollutes the environment and low ash fusion point raw material coal cannot be fully utilized.
In one aspect, the present invention provides a fluidized-bed gasification furnace, including: the gasification reaction section and the oxygen-enriched combustion section are sequentially communicated from top to bottom; the upper part and the lower part of the wall surface of the gasification reaction section are respectively provided with a raw material coal inlet loaded with a catalyst and a plurality of gasification agent nozzles, each gasification agent nozzle is obliquely and upwards arranged and is communicated with the gasification agent inlet of the gasification reaction section, and a gasification agent is conveyed to the gasification reaction section in a rotational flow mode, so that the raw material coal loaded with the catalyst reacts with the gasification agent to obtain ash containing the catalyst; the wall surface of the oxygen-enriched combustion section is provided with a plurality of oxygen nozzles, and each oxygen nozzle is obliquely arranged downwards along the wall surface and extends into the oxygen-enriched combustion section to convey oxygen to the oxygen-enriched combustion section, so that ash and slag generated by the gasification reaction section are subjected to combustion reaction with the oxygen, a large amount of heat is released, a high-temperature region is formed, and the ash and slag containing the catalyst are melted into liquid ash and slag at high temperature.
Further, in the fluidized bed gasification furnace, the gasification reaction section is of a cylinder structure, and each gasification agent nozzle and the central axis of the cylinder of the gasification reaction section are arranged at a first preset angle.
Further, in the fluidized-bed gasification furnace, the first preset angle is 60 to 90 °.
Further, in the fluidized bed gasification furnace, the gasification reaction section is of a cylindrical structure, a projection line of each gasification agent nozzle on the cylindrical section of the gasification reaction section and the wall surface of the gasification reaction section are provided with an intersection point, the intersection point is connected with the circle center of the cylindrical section to form a radius, and the radius and the projection line are arranged at a second preset angle.
Further, in the fluidized-bed gasification furnace, the second preset angle is 30 to 90 °.
Further, in the fluidized bed gasification furnace, the oxygen-enriched combustion section is of a cylinder structure, and an included angle between each oxygen nozzle and the cylinder section of the oxygen-enriched combustion section is 10-30 ℃.
Further, in the fluidized bed gasification furnace, the gasification nozzles are uniformly distributed along the circumferential direction of the wall surface of the gasification reaction section; and/or each oxygen nozzle is uniformly distributed along the circumferential direction of the wall surface of the oxygen-enriched combustion section.
Further, the fluidized-bed gasification furnace further includes: a liquid slag discharge unit; wherein the content of the first and second substances,
and the inlet of the slag tapping unit is communicated with the outlet of the oxygen-enriched combustion section and is used for discharging liquid slag generated by the oxygen-enriched combustion section.
According to the invention, the gasification agent nozzle inclined upwards is arranged at the gasification reaction section at the upper part of the gasification furnace, so that the gasification agent enters the gasification reaction section in a rotational flow manner to perform gasification reaction with the raw material coal loaded with the catalyst to generate methane-rich synthetic gas, and the phenomenon of slagging of the gasification furnace can be effectively avoided; through the oxygen-enriched combustion section in the lower part of the gasification furnace, the inclined downward oxygen nozzle is arranged, so that oxygen entering the oxygen-enriched combustion section and gasified ash slag fully generate combustion reaction to generate a large amount of heat, heat is provided for the gasification reaction section, the ash slag is discharged in a liquid state form, coal types with low ash fusion points can be effectively catalyzed and gasified, and because alkali metal and heavy metal in the catalyst raw material are solidified in the ash slag, the adaptability of the coal types is greatly improved, and the economy of the catalytic gasification is improved.
On the other hand, the invention also provides a gasification process of the fluidized bed gasification furnace, which comprises the following steps: inputting the raw material coal loaded with the catalyst into a gasification reaction section, inputting a gasification agent into the gasification reaction section in a swirling flow mode in an inclined and upward manner to perform gasification reaction with the raw material coal loaded with the catalyst at a first preset temperature to obtain methane-rich synthetic gas and gasification ash, and discharging the gasification ash into an oxygen-enriched combustion section; and inputting oxygen into the oxygen-enriched combustion section in an inclined downward mode, enabling the oxygen to perform combustion reaction with the gasified ash entering the oxygen-enriched combustion section, releasing a large amount of heat to form a high-temperature region, melting the ash containing the catalyst at a second preset temperature to form a liquid state, and discharging the liquid state of the ash out of the gasification furnace.
Further, in the gasification process of the fluidized bed gasification furnace, the first preset temperature is 650-750 ℃; the second preset temperature is 850-.
According to the gasification process of the fluidized bed gasification furnace, a coal sample loaded with the catalyst and the gasification agent entering in a rotational flow mode are subjected to gasification reaction to obtain a large amount of CO and H2、CH4And gasification ash, further leading the gasification ash and oxygen to have combustion reaction, discharging a large amount of heat and forming a high-temperature area, providing heat for the gasification reaction section and simultaneously ensuring the ash and slagThe catalyst is discharged in a liquid state, the process is simple, the low ash fusion point coal can be effectively catalyzed and gasified, and alkali metals and heavy metals in the catalyst raw materials can be solidified in ash, so that the adaptability of the coal is greatly improved, and the economy of catalytic gasification is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a fluidized-bed gasification furnace according to an embodiment of the present invention;
FIG. 2 is a layout of gasification agent nozzles on the wall of the shell of the gasification reaction zone according to an embodiment of the present invention;
FIG. 3 is an arrangement of gasification agent nozzles on a cross section of a barrel of a gasification reaction section according to an embodiment of the present invention;
FIG. 4 is a layout of oxygen nozzles in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 and 2, a fluidized-bed gasification furnace according to an embodiment of the present invention includes: a gasification reaction section 1 and an oxygen-enriched combustion section 2 which are sequentially communicated from top to bottom; the upper part and the lower part of the wall surface of the gasification reaction section 1 are respectively provided with a raw material coal inlet loaded with a catalyst and a plurality of gasification agent nozzles 11, each gasification agent nozzle 11 is obliquely and upwards arranged along the wall surface and is communicated with the gasification agent inlet of the gasification reaction section 1, and a gasification agent is conveyed to the gasification reaction section 1 in a rotational flow mode, so that the raw material coal loaded with the catalyst and the gasification agent react to obtain ash containing the catalyst; the wall surface of the oxygen-enriched combustion section 2 is provided with a plurality of oxygen nozzles 21, and each oxygen nozzle 21 is obliquely arranged downwards along the wall surface and extends into the oxygen-enriched combustion section 2 to convey oxygen to the oxygen-enriched combustion section 2, so that ash and slag generated by the gasification reaction section 1 are subjected to combustion reaction with the oxygen, a large amount of heat is released, a high-temperature region is formed, and the ash and slag containing a catalyst are melted into liquid ash and slag at high temperature.
Specifically, the gasification reaction section 1 and the oxygen-enriched combustion section 2 are both of a cylinder structure, and the two sections can be integrally formed. The gasifying agent nozzles 11 and the oxygen nozzles 21 have a predetermined distance in the axial direction of the barrel, and the predetermined distance may be determined according to actual conditions.
The upper part of the gasification reaction section 1 is provided with a raw material coal inlet loaded with a catalyst, and the raw material coal inlet can be obliquely and downwards arranged so as to facilitate the raw material coal loaded with the catalyst to smoothly enter the gasification reaction section 1.
The number of the gasifying agent nozzles 11 can be multiple, each gasifying agent nozzle 11 is arranged below the catalyst-loaded raw material coal inlet and is uniformly distributed along the circumferential direction of the wall surface of the cylinder of the gasification reaction section 1, and the gasifying agent is led into the gasification furnace in a rotational flow mode, so that the uniform distribution of a flow field in the gasification furnace is ensured, and a local high-temperature area is effectively avoided.
Each gasifying agent nozzle 11 and the central axis of the cylinder body of the gasification reaction section 1 are arranged at a first preset angle. Preferably, the first preset angle β is 60-90 °.
Referring to fig. 3, a projection line of each gasifying agent nozzle 11 on the cross section of the cylinder of the gasification reaction section 1 and the wall surface of the gasification reaction section 1 have an intersection point, the intersection point is connected with the center of the cross section of the cylinder to form a radius, and the radius and the projection line are arranged at a second preset angle. Preferably, the second preset angle γ is 30 to 90 °.
With continued reference to fig. 4, the oxygen nozzles 21 are disposed at the lower portion of the gasification furnace, most of the oxygen in the gasification furnace is introduced from the oxygen nozzles 21, and when there are a plurality of oxygen nozzles 21, each oxygen nozzle 21 is uniformly distributed along the circumferential direction of the wall surface of the oxycombustion section 2. For example, when there are two oxygen nozzles 21, the two oxygen nozzles 21 may be arranged symmetrically with respect to the central axis of the cylindrical body of the oxycombustion section 2. The oxygen nozzle delivers a gas having a relatively high oxygen content, such as oxygen-enriched steam.
The distance of the oxygen nozzle 21 extending into the oxygen-enriched combustion section 2 can be determined according to actual conditions, the oxygen nozzle 21 is arranged obliquely downwards, and the included angle alpha between the oxygen nozzle 21 and the cross section of the cylinder body of the oxygen-enriched combustion section 2 is 10-30 ℃.
The oxygen nozzles 21 extend obliquely downwards into the oxycombustion section 2, and the oblique downward oxygen flow makes the area in a disturbance state, so that the combustion reaction of carbon and oxygen in the gasification ash is accelerated.
The lower part of the oxygen-enriched combustion section 2 is a slag zone, and ash slag is stored in the slag zone after being melted at high temperature and then is discharged out of the gasification furnace through the slag zone. This implementation still includes: a liquid slag discharge unit 3; wherein, the inlet of the slag tapping unit 3 is communicated with the outlet of the oxycombustion section 2 for discharging the liquid slag generated by the oxycombustion section 2.
The slag tapping unit 3 communicates with a slag zone 3 at the bottom of the gasifier to discharge liquid ash out of the gasifier. Obviously, the fluidized-bed gasification furnace in the present embodiment is a slagging fluidized-bed gasification furnace.
As can be clearly seen from the above description, in the fluidized bed gasification furnace provided in this embodiment, the gasification agent nozzle inclined upward is disposed in the gasification reaction section at the upper portion of the gasification furnace, so that the gasification agent enters the gasification reaction section in a swirling flow manner to perform gasification reaction with the catalyst-loaded raw material coal to generate methane-rich syngas, thereby effectively avoiding slagging of the gasification furnace; the inclined downward oxygen nozzle is arranged at the oxygen-enriched combustion section at the lower part of the gasification furnace, so that oxygen entering the oxygen-enriched combustion section and gasified ash slag fully undergo a combustion reaction to generate a large amount of heat, heat is provided for the gasification reaction section, and the ash slag is discharged in a liquid state form, so that coal types with low ash fusion points can be effectively catalyzed and gasified, the adaptability of the coal types is greatly improved, and the catalytic coal gasification reaction of industrial wastes is realized; and because alkali metals and heavy metals in the raw materials of the catalyst are solidified in the ash, the harmless emission of the ash is realized, and the economy of catalytic gasification is improved.
The invention also provides a gasification process of the fluidized bed gasification furnace, which comprises the following steps:
step S1, inputting the raw material coal loaded with the catalyst into a gasification reaction section, inputting the gasification agent into the gasification reaction section in a swirling manner in an inclined upward manner to perform gasification reaction with the raw material coal loaded with the catalyst at a first preset temperature to obtain methane-rich synthetic gas and gasification ash, and discharging the gasification ash into an oxygen-enriched combustion section.
Specifically, the gasifying agent can be a steam gasifying agent which enters the gasification reaction section in a rotational flow mode, so that the uniform distribution of a flow field in the region can be ensured, and the slagging phenomenon caused by high temperature can be avoided. The first predetermined temperature may be controlled at 650-.
And step S2, inputting oxygen into the oxygen-enriched combustion section in an inclined downward mode, enabling the oxygen to perform combustion reaction with the gasified ash entering the oxygen-enriched combustion section, releasing a large amount of heat to form a high-temperature zone, enabling the ash containing the catalyst to be molten into a liquid state at a second preset temperature, and discharging the ash out of the gasification furnace in the liquid state.
Specifically, the second preset temperature is 850-1200 ℃, so that the ash is in a molten liquid state, the ash in the liquid state enters a slag zone at the lower part of the gasification furnace, and is uniformly conveyed to the slag discharging unit through an outlet of the slag zone and finally discharged out of the gasification furnace.
The process embodiments and the device embodiments have been described with reference to related parts, which are not described herein again.
Obviously, the fluidized bed gasification furnace gasification process provided by the invention can obtain a large amount of CO and H by carrying out gasification reaction on the coal sample loaded with the catalyst and the gasification agent entering in a rotational flow mode2、CH4And gasification ash, further reacting the gasification ash with oxygenThe raw combustion reaction releases a large amount of heat and forms a high-temperature area, so that the ash slag is discharged in a liquid state while providing heat for a gasification reaction section, the process is simple, the coal with a low ash melting point can be effectively catalyzed and gasified, the alkali metal and the heavy metal in the catalyst raw material can be solidified in the ash slag, and the coal adaptability and the catalytic gasification economy are greatly improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A fluidized-bed gasification furnace, comprising: the gasification reaction section and the oxygen-enriched combustion section are sequentially communicated from top to bottom; wherein the content of the first and second substances,
the upper part and the lower part of the wall surface of the gasification reaction section are respectively provided with a raw material coal inlet loaded with a catalyst and a plurality of gasification agent nozzles, each gasification agent nozzle is obliquely and upwards arranged along the wall surface and is communicated with the gasification agent inlet of the gasification reaction section, and a gasification agent is conveyed to the gasification reaction section in a rotational flow mode, so that the raw material coal loaded with the catalyst reacts with the gasification agent to obtain ash containing the catalyst;
the wall surface of the oxygen-enriched combustion section is provided with a plurality of oxygen nozzles, and each oxygen nozzle is obliquely arranged downwards along the wall surface and extends into the oxygen-enriched combustion section to convey oxygen to the oxygen-enriched combustion section, so that ash and slag generated by the gasification reaction section are subjected to combustion reaction with the oxygen, a large amount of heat is released, a high-temperature region is formed, and the ash and slag containing the catalyst are melted into liquid ash and slag at high temperature.
2. The fluidized-bed gasification furnace according to claim 1, wherein the gasification reaction section has a cylindrical structure, and each gasification agent nozzle is arranged at a first predetermined angle with respect to a central axis of the cylindrical body of the gasification reaction section.
3. The fluidized-bed gasification furnace according to claim 2, wherein the first preset angle is 60-90 °.
4. The fluidized-bed gasification furnace according to claim 1, wherein the gasification reaction section has a cylindrical structure, and a projection line of each gasification agent nozzle on a cylindrical section of the gasification reaction section has an intersection with a wall surface of the gasification reaction section, the intersection is connected with a center of the cylindrical section to form a radius, and the radius is arranged at a second preset angle with respect to the projection line.
5. The fluidized-bed gasification furnace according to claim 4, wherein the second preset angle is 30-90 °.
6. The fluidized-bed gasification furnace according to claim 1, wherein the oxycombustion section is of a cylindrical structure, and an included angle between each oxygen nozzle and a cylindrical section of the oxycombustion section is 10-30 ℃.
7. The fluidized-bed gasification furnace according to claim 1, wherein each of the gasification nozzles is uniformly distributed in a circumferential direction of the wall surface of the gasification reaction section; and/or each oxygen nozzle is uniformly distributed along the circumferential direction of the wall surface of the oxygen-enriched combustion section.
8. The fluidized-bed gasification furnace according to claim 1, further comprising: a liquid slag discharge unit; wherein the content of the first and second substances,
and the inlet of the slag tapping unit is communicated with the outlet of the oxygen-enriched combustion section and is used for discharging liquid slag generated by the oxygen-enriched combustion section.
9. A gasification process of a fluidized bed gasification furnace is characterized by comprising the following steps:
inputting the raw material coal loaded with the catalyst into a gasification reaction section, inputting a gasification agent into the gasification reaction section in a swirling flow mode in an inclined and upward manner to perform gasification reaction with the raw material coal loaded with the catalyst at a first preset temperature to obtain methane-rich synthetic gas and gasification ash, and discharging the gasification ash into an oxygen-enriched combustion section;
and inputting oxygen into the oxygen-enriched combustion section in an inclined downward mode, enabling the oxygen to perform combustion reaction with the gasified ash entering the oxygen-enriched combustion section, releasing a large amount of heat to form a high-temperature region, melting the ash containing the catalyst at a second preset temperature to form a liquid state, and discharging the liquid state of the ash out of the gasification furnace.
10. The fluidized-bed gasification process using a gasifier as claimed in claim 9, wherein the first predetermined temperature is 650-750 ℃; the second preset temperature is 850-.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3253906A (en) * | 1960-12-14 | 1966-05-31 | Secord Campbell Herbert | Slagging grate furnace and method of operation thereof |
| CN104479755A (en) * | 2014-11-26 | 2015-04-01 | 新奥科技发展有限公司 | Fluidized bed gasification furnace, catalytic coal gasification system and gasifying process |
| CN105038860A (en) * | 2015-07-10 | 2015-11-11 | 北京柯林斯达科技发展有限公司 | Swirl-flow type gasification furnace and swirl-flow type gasification process |
| CN105132034A (en) * | 2015-09-11 | 2015-12-09 | 哈尔滨工业大学 | Entrained-flow bed gasification furnace with oxygen spraying dissolution fluxing function at bottom |
| CN107177384A (en) * | 2017-07-11 | 2017-09-19 | 新奥科技发展有限公司 | A kind of catalytic gasification device, system and method |
-
2020
- 2020-11-12 CN CN202011264480.4A patent/CN112480968B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3253906A (en) * | 1960-12-14 | 1966-05-31 | Secord Campbell Herbert | Slagging grate furnace and method of operation thereof |
| CN104479755A (en) * | 2014-11-26 | 2015-04-01 | 新奥科技发展有限公司 | Fluidized bed gasification furnace, catalytic coal gasification system and gasifying process |
| CN105038860A (en) * | 2015-07-10 | 2015-11-11 | 北京柯林斯达科技发展有限公司 | Swirl-flow type gasification furnace and swirl-flow type gasification process |
| CN105132034A (en) * | 2015-09-11 | 2015-12-09 | 哈尔滨工业大学 | Entrained-flow bed gasification furnace with oxygen spraying dissolution fluxing function at bottom |
| CN107177384A (en) * | 2017-07-11 | 2017-09-19 | 新奥科技发展有限公司 | A kind of catalytic gasification device, system and method |
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| CN112480968B (en) | 2022-07-19 |
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