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Series-parallel multi-stage compounding apparatus and method for producing hydrogen by biomass continceous fermentation

A biomass fermentation and composite device technology, which is applied in the field of hydrogen production by immobilized microorganisms fermenting biomass, can solve the problems that the high efficiency and stability of hydrogen production cannot be well achieved, and achieve stable and sustainable gas production. More, the effect of high hydrogen content

Inactive Publication Date: 2007-11-14
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of further research on the relationship between dehydrogenase and hydrogen production, the hydrogen production utilization rate of raw materials, the efficiency and stability of hydrogen production cannot be well realized

Method used

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  • Series-parallel multi-stage compounding apparatus and method for producing hydrogen by biomass continceous fermentation
  • Series-parallel multi-stage compounding apparatus and method for producing hydrogen by biomass continceous fermentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In Figures 1 and 2, a 1L experimental fermentation hydrogen production fermenter device is used to connect 7 stages of fermenters in series, and only 50-100g of mixed strains of immobilized microbial blocks are put into the first stage. No immobilized microbial blocks are put into the other stages of fermentation hydrogen production fermenters connected in series. Regularly and quantitatively add potato hydrolyzate from the first-stage feed port, suck out the same volume from the second-stage feed port, and then operate in sequence to the last stage to produce hydrogen by fermentation. At each level, the gas volume, hydrogen content, and sampling analysis related indicators and dehydrogenase enzyme activity are measured respectively.

[0050] Level 1, investigation of the ability of mixed strains to immobilize microbial provenance

[0051] From the first 14h of starting, the dehydrogenase activity is at a relatively high level, and at this time hydrogen is hardly produ...

Embodiment 2

[0053] Example 2: After the single-batch investigation of one fermentation cycle of the first-level provenance meets the expected requirements, the continuous fermentation hydrogen production with multi-stage fermentation tanks connected in series using potato hydrolyzate as raw material was formally started.

[0054] Among Fig. 1, 3, the 1st stage (11) is the fermenter that the provenance is cultivated and fermented concurrently, and the 2nd stage (12) is the auxiliary fermenter that the provenance is cultivated and fermented concurrently. The two-stage fermentation tank uses steel bars with a diameter ≥ 1.5 cm, and welds two upper and lower screen plates with a criss-cross interval of about 10 cm. The plates are respectively set at about 1 / 3 of the height of the tank body. Between the two plates is the space for the immobilized microbial strain block of mixed strains. There is a 90cm square hole on the upper plate for putting in and taking out the immobilized block.

[0055...

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Abstract

This invention relates to a serial and parallel multi-stage compound device and a method for continuously fermenting and generating hydrogen by biomass with immobilized animacules, in which, a first stage is a ferment tank for source cultivation and ferment, the second stage is an assistant ferment tank for assisting the cultivation and ferment and a third stage is a primary ferment tank and the latters are serial ferment tanks of n-stages(n>3), mixed immobilized bacteriums of 1-10% W / V of the tank are put into the 1and 2 stages and no immobilized blocks are set in other stages. The method includes: the 1 and 3 stages are for primary feeding, the first one is for putting up raw materials and the third is for producing raw material roughly, the fluid flowing to the next stage is natural without power supply and the collection or process of gas in concentration is realized by a tee.

Description

Technical field [0001] The invention belongs to a method and a device for producing hydrogen by fermenting biomass with immobilized microorganisms. technical background [0002] Biomass hydrogen production has a wide range of raw materials. While obtaining hydrogen energy, it can also deal with organic pollutants. It is a hot field of modern biochemical research. [0003] In recent years, with regard to biomass fermentation hydrogen production technology, there have been many researches at home and abroad on the relevant bioreactors, technological processes and anaerobic digestion technology methods of immobilized microorganisms for biomass fermentation hydrogen production. progress. In 2001, Narendra Kumar, Debabrata Das et al. used a packed bed bioreactor to immobilize the bacterial species Enterobacter cloacae IIT-BT08 with coconut shells as a material to ferment glucose to produce hydrogen. The maximum hydrogen production obtained was 2.1 times that of batch fermentatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/00C12P3/00
CPCY02E50/343C12M21/04C12M23/58C12M41/24Y02E50/30
Inventor 刘士清张无敌马欢
Owner YUNNAN NORMAL UNIV
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