A compound enzyme preparation and preparation method for producing clean energy from low-rank coal

A compound enzyme preparation and clean energy technology, which is applied in the application field of coal resource utilization, can solve the problems of complex structure and difficult degradation of low-rank coal, and achieve the effect of improving biodegradability, reducing conversion cost and being highly targeted.

Active Publication Date: 2021-11-26
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with the above-mentioned biocatalysis of carbohydrates such as kitchen waste, low-order coal is not an ideal substrate for microbial conversion due to its more complex structure and difficult degradation.

Method used

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  • A compound enzyme preparation and preparation method for producing clean energy from low-rank coal

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Composite enzyme preparation described in this embodiment comprises the component of following mass content:

[0028] Pectin esterase 5wt%;

[0029] Phosphatase 40wt%;

[0030] Acid protease 30wt%;

[0031] Alpha-amylase 5wt%;

[0032] Aspergillus type glucoamylase 20wt%.

[0033] Crush 60g of lignite to 100 mesh, add it to a 500mL anaerobic reaction bottle, add 200mL of anaerobic activated sludge, then add a total of 10g of compound enzyme preparation weighed and mixed in proportion, add pure water until the total reaction system is 450mL, adjust The pH was 7.0, and the methane production experiment was carried out at a high temperature of 50°C. The gas production was the highest on the second day, which was 302.8 mL, and the cumulative total gas production was 1164.2 mL.

[0034] And present embodiment contrast (anaerobic activated sludge+composite enzyme preparation), only have pure water, 200.0mL anaerobic activated sludge and the total 10g compound enzyme prepa...

Embodiment 2

[0037] Composite enzyme preparation described in this embodiment comprises the component of following mass content:

[0038] Pectin esterase 5wt%;

[0039] Phosphatase 40wt%;

[0040] Acid protease 30wt%;

[0041] Alpha-amylase 5wt%;

[0042] Aspergillus type glucoamylase 20wt%.

[0043] Grind 60g of lignite to 100 mesh, add to a 500mL anaerobic reaction bottle, add 200mL of anaerobic activated sludge, then add a total of 10g of compound enzyme preparation weighed and mixed in proportion, add pure water until the total reaction system is 450mL, adjust the pH The methane production experiment was carried out at a medium temperature of 30°C. The gas production was the highest on the third day, which was 302.6 mL, and the cumulative total gas production was 1064.7 mL.

[0044] And present embodiment contrast (anaerobic activated sludge+composite enzyme preparation), only have pure water, 200.0mL anaerobic activated sludge and the total 10g compound enzyme preparation that wei...

Embodiment 3

[0047] Composite enzyme preparation described in this embodiment comprises the component of following mass content:

[0048] Pectin esterase 5wt%;

[0049] Phosphatase 40wt%;

[0050] Acid protease 30wt%;

[0051] Alpha-amylase 5wt%;

[0052] Aspergillus type glucoamylase 20wt%.

[0053] Crush 60g of lignite to 100 mesh, add it to a 500mL anaerobic reaction bottle, add 200mL of anaerobic activated sludge that has been heated at 100°C for 30 minutes to kill methanogens, and then add a total of 10g of compound enzyme preparation weighed and mixed in proportion, Supplement pure water until the total reaction system is 450mL, adjust the pH to 7.0, and conduct the hydrogen production experiment at 50°C. The hydrogen production reached the highest on the first day, and the hydrogen production was 400.7mL. After that, the hydrogen production gradually decreased until it stopped. Hydrogen is produced, and the cumulative total hydrogen production is 1270.9mL.

[0054] In contrast ...

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Abstract

The invention belongs to the technical field of coal resource utilization, specifically relates to a compound enzyme preparation for producing clean energy from low-rank coal, and further discloses a method for using low-rank coal to produce clean energy, so as to realize resource utilization of low-rank coal . The composite enzyme preparation for producing biomethane, biohydrogen or bioethanol from low-order coals according to the present invention uses protease, lipase, amylase, glucoamylase and pectinase as active ingredients for precise compounding, so that the low-order Coal (peat, lignite, low-metamorphic bituminous coal) breaks specific chemical bonds, dissociates corresponding functional groups, and converts them into biomethane, biohydrogen or carbon sources for microorganisms required for bioethanol conversion, and then obtains corresponding green low-carbon energy. The biodegradability of coal ensures the self-supply of nutrients required for microbial conversion of low-rank coal, so that low-rank coal can be transformed into high-carbon resources and low-carbon without adding exogenous nutrients.

Description

technical field [0001] The invention belongs to the technical field of coal resource utilization, specifically relates to a compound enzyme preparation for producing clean energy from low-rank coal, and further discloses a method for using low-rank coal to produce clean energy, so as to realize resource utilization of low-rank coal . Background technique [0002] Solar energy is the source of almost all energy on the earth, and biomass is the carrier of solar cycle transformation. The energy basis of modern industrial development--coal, oil, and natural gas are all ancient biomass buried underground, through the joint action of microorganisms and geochemistry evolved. For a long time to come, fossil energy will still occupy a dominant position in China's energy structure. With the increasing pressure of protecting the ecological environment and coping with climate change, there is an urgent need for the green transformation of traditional energy sources. Among them, the r...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C12N9/18C12N9/24C12N9/20C12N9/16C12N9/26C12N9/50C12N9/34C10L9/10
CPCC10L9/10C10L2250/02C12N9/16C12N9/18C12N9/20C12N9/2402C12N9/2414C12N9/2425C12N9/2428C12N9/50C12Y301/01003C12Y301/01011C12Y302/01002C12Y302/01003C12Y302/01015
Inventor马力通李珺
OwnerINNER MONGOLIA UNIV OF SCI & TECH