Reaction device for producing organic acid and alcohol through synthesis gas fermentation

Abstract

The invention discloses a reaction device for producing organic acid and alcohol through synthesis gas fermentation, comprising a main body reactor and an external gas cycle system which is connected with the main body reactor and cycles the gas generated in the main body reactor, wherein the main body reactor comprises a reactor pot body and a guide cylinder which is arranged in the reactor pot body, is fixed by a support and is a concentric cylinder of the reactor pot body; a blade type blender is arranged along the axis of the guide cylinder, the end, with a blending blade, of the blender is arranged close to the bottom end of the guide cylinder and the other end of the blender is connected with a drive motor; a vent pipe of a gas distributor stretches into the position between the bottom in the guide cylinder and the lower part of the blending blade, and the other end of the gas distributor is communicated with a gas input pipeline by stretching out of the guide cylinder. A cycle gas circuit and a normal gas supply gas circuit are alternately used in the external gas cycle system. The reaction device of the invention has the advantage of simple structure and operation, can obtain good gas-liquid mass transfer without high blending power and ventilation volume, can not only realize continuous gas supply but also realize gas cycle utilization, and greatly improves the use ratio of the gas substrate.

Description

technical field [0001] The invention relates to a synthesis gas anaerobic fermentation device, the fermentation product is organic acid or alcohol, and the feature is that the utilization rate of the gas substrate can be greatly improved. Background technique [0002] Syngas comes from the gasification of coal, petroleum, biomass and organic waste, and is produced by partial oxidation and pyrolysis of these carbonaceous substances. Its main components are CO, H 2 and CO 2 . Syngas is an abundant and inexpensive bioprocessing feedstock that can be converted into acetic acid, butyric acid, ethanol, and butanol, etc., through anaerobic fermentation. Ethanol is a high-quality liquid fuel. Its specific heat capacity, octane number (anti-knock performance), latent heat of vaporization, etc. are superior to gasoline, and it does not contain impurities such as sulfur and ash. It is an ideal substitute for gasoline. Acetic acid, butyric acid and butanol are important solvents and ...

AI Technical Summary

Problems solved by technology

Because the solubility of syngas components in water is low, the gas substrate passed in is discharged as waste gas without being fully utilized, which greatly reduces the utilization rate of the substrate

In addition, the CO produced during fermentation 2 It can also be used as a fermentation substrate, and it is a pity to discharge it directly

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