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Method and device for carbon injection and recirculation of synthesis gas when producing synthesis gas

A technology for injecting nozzles and process gas, which is applied in the details of gasification devices, gas carbonization, combustion methods, etc., and can solve problems such as insufficient mixing and incomplete reaction.

Active Publication Date: 2014-12-03
CORTUS AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] As noted above, the problem with the gasification of carbonaceous materials such as coal, coal residues, petroleum residues, waste, and biomass is maintaining a high enough temperature for a sufficient period of time to achieve complete gasification of the carbonaceous material. changes, affecting oxidizing gases (CO 2 and H 2 O) Adequate mixing with the reducing agent (carbon) and overcoming the pressure difference between the external and internal air pressure of the gasification reactor
If the time and temperature cannot be maintained, the reaction will be incomplete, and insufficient mixing will also lead to incomplete reaction

Method used

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  • Method and device for carbon injection and recirculation of synthesis gas when producing synthesis gas
  • Method and device for carbon injection and recirculation of synthesis gas when producing synthesis gas

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Embodiment Construction

[0022] figure 1 is a schematic diagram of an apparatus for carbon injection in a gasification process, in which powdered carbon C is fed into an injection nozzle 1, powdered carbon C is mixed with process gas P (preferably steam) and recycled reaction product R s (synthesis gas) mix. The mixture from the injection nozzle 1 is heated and reacted in the indirectly heated gasification reactor 2 . To this end, the gasification reactor 2 comprises a burner 4 extending in a gasification space 5 of the gasification reactor 2 , which burner 4 indirectly heats the gasification reactor 2 . The process gas P is pressurized and accelerated to supersonic speed (Mach number > 1) through an annular Laval nozzle 15 incorporated in the injection nozzle 1 . The Laval nozzle 15 forms a strong negative pressure at the center of the injection nozzle 1, which is incorporated into the injection nozzle 1 for the powdered carbon C and the recycled reaction product R S The central pipe / small and med...

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Abstract

Method and device for introducing pulverulent material (C) into a gasification reactor (2), wherein a process gas (P) supplied to a gasification reactor (2) is reduced to a synthesis gas (S) by the pulverulent material (C) and the pulverulent material (C) is introduced into the gasification reactor (2) via an inlet area, a negative pressure being generated in the inlet area for the pulverulent material (C) via a Laval nozzle (15) and the negative pressure being generated in that the process gas (P) passes through the Laval nozzle (15). The method is characterized in that the process gas (P) expands in a gasification space (5) in the gasification reactor (2).

Description

technical field [0001] The present invention relates to a method and an apparatus for carbon injection and gas recirculation in the production of synthesis gas from solid carbon particles, wherein said carbon particles are preferably obtained in the presence of process gas in the same space as the carbon particles In the case of carbon particles, the pyrolysis and gasification of the carbon particles are achieved by indirect heating, and the reaction products for recycling and the synthesis gas produced during the gasification process are discharged from the space. For optimum results, the device includes a Laval nozzle capable of accelerating the gas to supersonic speeds, capable of creating a negative pressure for the injection of the powdered carbon and allowing the gas and powdered carbon to react in the gasification stay in the container for a longer period of time. Background technique [0002] It is required that the carbon injection device in the production of synga...

Claims

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Application Information

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IPC IPC(8): C10J3/50C10J1/20
CPCF23D1/00C10J3/485C10J2300/1223C10J2300/0976C10J3/506C10J2200/152C10J2300/1246C10J2300/0969C10J2300/1823F23C9/003C01B3/02C10J1/20C10J3/50
Inventor R·永格伦
Owner CORTUS AB