CN-224227076-U - Device for co-producing synthetic gas through biomass fermentation

CN224227076UCN 224227076 UCN224227076 UCN 224227076UCN-224227076-U

Abstract

The utility model provides a device for co-producing synthesis gas by biomass fermentation, which comprises a biomass enzymolysis tank and a solid-liquid separation device which are connected, wherein a solid phase outlet of the solid-liquid separation device is connected with a raw material pretreatment device, a liquid phase outlet of the solid-liquid separation device is connected with a co-producing fermentation device, an outlet of the raw material pretreatment device is connected with a co-producing gasification device, the co-producing gasification device is used for entrained flow reaction, washing and cooling, the co-producing fermentation device comprises the fermentation tank and a rectification device, a liquid phase product of biomass enzymolysis is used for fermentation, and solid phase residues are used for biomass gasification to co-produce synthesis gas after relevant pretreatment, so that complicated operations of drying, briquetting or granulating, carbonizing and pulverizing traditional biomass raw materials are omitted, the gasification process cost is reduced, and the recycling of enzymolysis residues is realized.

Inventors

LIU LINLIN
WU JINPENG
LIU JIAN
XU JUNQING

Assignees

中国天辰工程有限公司

Dates

Publication Date: 20260512
Application Date: 20250430

Claims (10)

1. The device for co-producing the synthetic gas by fermenting the biomass is characterized by comprising a biomass enzymolysis tank and a solid-liquid separation device which are connected; The solid phase outlet of the solid-liquid separation device is connected with the raw material pretreatment device; the liquid phase outlet of the solid-liquid separation device is connected with the co-production fermentation device; The outlet of the raw material pretreatment device is connected with the co-production gasification device; The co-production gasification device is used for entrained-flow reaction, cooling and washing of crude synthesis gas; The co-production fermentation device comprises a fermentation tank and a rectification device.
2. The apparatus of claim 1, wherein the solid liquid separation device comprises a filter and/or a centrifuge.
3. The apparatus of claim 1, wherein the feedstock pretreatment apparatus comprises a pulping device.
4. A device according to claim 3, wherein the pulping equipment comprises a pulping tank, a solid phase inlet, a solvent inlet and an auxiliary agent inlet are arranged on the pulping tank, and the solid-liquid separation device is connected with the solid phase inlet of the pulping tank through a solid phase conveying device.
5. The device of claim 4, further comprising an additive reservoir connected to the additive inlet.
6. The apparatus according to claim 4, wherein a stirring device is provided in the pulping tank.
7. The apparatus of claim 4, wherein a temperature sensor is disposed within the pulping tank.
8. The device according to claim 1, wherein the co-production gasification device comprises a gasification reaction zone positioned above and a chilling separation zone positioned below, and the chilling separation zone is used for cooling and washing crude synthesis gas; The side wall of the chilling separation zone is provided with a crude synthesis gas outlet, and the bottom of the chilling separation zone is provided with a gasification slag outlet; The co-production gasification device also comprises a washing unit, and the washing unit is connected with the chilling separation zone and is used for washing the crude synthesis gas.
9. The device of claim 1, wherein the biomass enzymolysis tank is provided with a biomass scrap inlet and an enzyme preparation inlet, and the bottom of the biomass enzymolysis tank is provided with an enzymolysis product outlet.
10. The device according to claim 1, wherein a stirring device is arranged in the biomass enzymolysis tank, and a temperature sensor and/or a pH sensor is arranged in the biomass enzymolysis tank.

Description

Device for co-producing synthetic gas through biomass fermentation Technical Field The utility model belongs to the technical field of chemical industry, and relates to a device for co-producing synthetic gas by biomass fermentation. Background Because biomass volatile content is extremely high (more than 60%), thermal stability is poor, operation difficulty of a traditional biomass gasification device is high, equipment is easy to wear, stable production cannot be realized, and use cost is high. Raw materials adopted in the traditional biomass gasification process need to be subjected to operations such as drying, briquetting or granulating, carbonizing, grinding and the like, and the process has high electricity consumption and heat consumption and high production cost, so that development of a device for co-producing synthesis gas without the operations such as drying, briquetting or granulating, carbonizing, grinding and the like is of great significance. Disclosure of utility model The utility model aims to provide a device for co-producing synthesis gas by biomass fermentation, which comprises a biomass enzymolysis tank and a solid-liquid separation device which are connected, wherein a solid phase outlet of the solid-liquid separation device is connected with a raw material pretreatment device, a liquid phase outlet of the solid-liquid separation device is connected with a co-producing fermentation device, an outlet of the raw material pretreatment device is connected with a co-producing gasification device, the co-producing gasification device is used for entrained flow reaction, gas cooling, washing and the like, the co-producing fermentation device comprises the fermentation tank and a rectification device, a liquid phase product of biomass enzymolysis is used for fermentation, solid phase residues are pretreated and then used for biomass gasification to co-produce synthesis gas, complicated operations of drying, briquetting or granulating, carbonizing and pulverizing traditional biomass raw materials are reduced, and the recycling of enzymolysis residues is realized while gasification process cost is reduced. In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the utility model provides a device for co-producing synthetic gas by biomass fermentation, which is characterized by comprising a biomass enzymolysis tank and a solid-liquid separation device which are connected; the solid phase outlet of the solid-liquid separation device is connected with the raw material pretreatment device; the liquid phase outlet of the solid-liquid separation device is connected with the co-production fermentation device; The outlet of the raw material pretreatment device is connected with the co-production gasification device; The co-production gasification device is used for entrained-flow reaction, cooling and washing of crude synthesis gas; The co-production fermentation device comprises a fermentation tank and a rectification device. The novel device adopts biomass enzymolysis residues as raw materials for biomass gasification, the complicated pretreatment operation is not needed, the biomass gasification cost is low, partial low-heat-value components are removed in the enzymolysis process, and compared with the biomass raw materials in the traditional process, the enzymolysis residues have higher heat value, and the biomass gasification can obtain higher effective gas composition. Preferably, the solid-liquid separator comprises a filter and/or a centrifuge. Preferably, the solid-liquid separation device is provided with a detergent inlet and a detergent outlet, and preferably the detergent is water. In the utility model, the enzymolysis product is subjected to solid-liquid separation to obtain a filter cake, and then a detergent is added for washing, so that the content of water-soluble impurity ions in the solid phase can be further reduced through washing. Preferably, the raw material pretreatment device comprises a pulping apparatus. Preferably, the pulping equipment comprises a pulping tank, wherein a solid phase inlet, a solvent inlet and an auxiliary agent inlet are arranged on the pulping tank, and the solid-liquid separation device is connected with the solid phase inlet of the pulping tank through a solid phase conveying device. Preferably, the device further comprises an auxiliary reservoir, which is connected to the auxiliary inlet. The solvent can be selected from water, the auxiliary agent can be selected from biological enzyme and the like, and the auxiliary agent is used for assisting the solid-phase residue to be mixed with the solvent to obtain the slurry meeting the gasification requirement. Preferably, a stirring device is arranged in the pulping tank. Preferably, a temperature sensor is arranged in the pulping tank. The pulping equipment is used for mixing solid-phase residues obtained by solid-liquid separation with liquid phase to obt