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Method and device for producing hydrogen through pulsed power ultrasonic enhanced anaerobic biological fermentation

An anaerobic biological and ultrasonic technology, applied in biochemical cleaning devices, biochemical equipment and methods, enzymology/microbiology devices, etc., can solve the problems of high hydrogen partial pressure and low mass transfer efficiency, and improve the utilization rate. , Improve the mass transfer rate and avoid the effect of gas purification problems

Inactive Publication Date: 2016-08-17
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology

The mass transfer efficiency is low during the internal transfer process of hydrogen microbial aggregates, resulting in excessive hydrogen partial pressure in the microenvironment inside the aggregates

Method used

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  • Method and device for producing hydrogen through pulsed power ultrasonic enhanced anaerobic biological fermentation

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Embodiment Construction

[0012] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] A method for intensifying anaerobic biological fermentation hydrogen production with pulsed power ultrasonic waves, which uses pulsed power ultrasonic waves to perform pulsed power ultrasonic intensified treatment on the fermentation broth in an anaerobic biological fermentation hydrogen production system at a constant temperature of 35°C. The ultrasonic frequency is 20-100KHz, the power density is 50-250W / L, the pulse power ultrasonic action time is 1-2S, and the interval time is 58-59S.

[0014] A pulsed power ultrasonic enhanced anaerobic biological fermentation hydrogen production device, a constant temperature water jacket 2 is covered and contained on the outside of the cylinder of the reaction tank 1, and the upper and lower sides of the constant temperature water jacket 2 are respectively provided with A water port 8 and a water outlet 9...

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Abstract

The invention relates to a method and a device for producing hydrogen through pulsed power ultrasonic enhanced anaerobic biological fermentation and belongs to a biological hydrogen production technology. The method comprises the following steps: performing pulsed power ultrasonic enhanced treatment on fermentation liquor in an anaerobic biological fermentation hydrogen production system by adopting pulsed power ultrasonic waves at a constant temperature of 35 DEG C, wherein the frequency of the pulsed power ultrasonic waves is 20-100 KHz, the power density is 50-250 W / L, and the action time of the pulsed power ultrasonic waves is 1-2 S, and the interval time is 58-59 S; the device adopts a structure that an ultrasonic transducer is assembled at the bottom of the lower end of a reaction tank body, and an ultrasonic generator is communicated with the ultrasonic transducer through a lead. According to the method and the device provided by the invention, a full hybrid reactor is combined with the ultrasonic transducer, so that the mass transfer efficiency of the hydrogen inside the anaerobic biological fermentation system, the yield of the hydrogen and the utilization rate of the device are improved.

Description

technical field [0001] The invention belongs to biological hydrogen production technology, and mainly relates to a method and device for producing hydrogen by pulsed power ultrasonic anaerobic biological fermentation. Background technique [0002] The theoretical hydrogen production rate of biomass anaerobic hydrogen production fermentation is 4mol—H 2 / mol-glucose. However, the actual hydrogen production rate of anaerobic hydrogen production fermentation is basically 2mol-H 2 / mol-glucose, far below the theoretical value. This is mainly because the hydrogen partial pressure is lower than 10 -4 Atm can proceed spontaneously, and the actual hydrogen partial pressure of hydrogen-producing fermentation is about 10 -1 atm. At this time, the hydrogen production process can only proceed to the hydrolytic fermentation stage, and the dominant microorganisms are mainly hydrolytic fermentation bacteria such as Clostridiumsp, and the hydrogen production rate will not exceed 2mol-H...

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Application Information

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IPC IPC(8): C12P3/00C12N13/00C12M1/42C12M1/107C12M1/02
CPCC12P3/00C12M21/04C12M27/02C12M35/04C12M41/22C12N13/00
Inventor 刘爽殷丽丽鞠文聪李文哲刘传宝梁苏和胡晶王梦一孙慧茹
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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