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Preparation of marsh-gas in laboratory

A laboratory and conditional technology, applied in the energy field, can solve the problems of not getting rid of the traditional structure of large-scale biogas digesters, unsuitable for implementation, and unsuitable for research in large-scale biogas projects, achieving high methane content, improved experimental success rate and accuracy, Quick start of gas production

Inactive Publication Date: 2011-03-30
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, large biogas projects are not suitable for research
The main purpose of producing biogas in the laboratory is for the needs of experimental research, so it does not need to produce biogas in large quantities for a long time, and does not have high requirements for the recycling of the entire device, but it emphasizes the simplicity and practicability of the experimental device
[0004] After searching the documents of the prior art, it is found that the Chinese patent (application) number is CN99115119.4, which is called the patent of the fermentation method of biogas. The characteristic is that the fermentation temperature can be adjusted according to the required gas production, but it still has not got rid of the traditional structure of a large biogas digester, and it is not suitable for realization in the laboratory

Method used

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  • Preparation of marsh-gas in laboratory
  • Preparation of marsh-gas in laboratory
  • Preparation of marsh-gas in laboratory

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] Put the fermented pig manure in a glass container, add water and stir until it becomes a thick paste. Place it for 5 days, stir twice a day, and measure the pH value once a day. After 5 days, the pretreatment of pig manure is completed. After washing the porcelain crucible, burn it in a muffle furnace at 600°C for 1 hour, and then stop burning. When the temperature of the furnace drops to 100°C, take out the porcelain crucible and cool it in a desiccator. Repeat the above steps until constant weight, weighed as a. Put the pig manure and the inoculum in a porcelain crucible respectively, weigh them, the mass is b, put them into a desiccator, and dry them at 105°C. After drying, the mass of the material and the porcelain crucible (or the inoculum and the porcelain crucible) is c, by formula TS = c - a b - a × 100 ...

example 2

[0043] Put the fermented pig manure in a glass container, add water and stir until it becomes a thick paste. Place it for 5 days, stir twice a day, and measure the pH value once a day. After 5 days, the pretreatment of pig manure is completed. After washing the porcelain crucible, burn it in a muffle furnace at 600°C for 1 hour, then stop burning. When the temperature of the furnace drops to 100°C, take out the porcelain crucible and cool it in a desiccator, repeat The above steps to constant weight, weighed as a. Put the pig manure and the inoculum in a porcelain crucible respectively, weigh them, the mass is b, put them into a desiccator, and dry them at 105°C. After drying, the mass of the material and the porcelain crucible (or the inoculum and the porcelain crucible) is c, by formula TS = c - a b - a × 100 % ...

example 3

[0051] Put the fermented pig manure in a glass container, add water and stir until it becomes a thick paste. Place it for 5 days, stir twice a day, and measure the pH value once a day. After 5 days, the pretreatment of pig manure is completed. After washing the porcelain crucible, burn it in a muffle furnace at 600°C for 1 hour, then stop burning. When the temperature of the furnace drops to 100°C, take out the porcelain crucible and cool it in a desiccator, repeat The above steps to constant weight, weighed as a. Put the pig manure and the inoculum in a porcelain crucible respectively, weigh them, the mass is b, put them into a desiccator, and dry them at 105°C. After drying, the mass of the material and the porcelain crucible (or the inoculum and the porcelain crucible) is c, by formula TS = c - a b - a × 100 % ...

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Abstract

Production of marsh gas in laboratory is carried out by pre-treating for material, adding water into fermented material, agitating it into paste, determining total solid content TS of material and inoculum, determining fermenting liquid quality, whose concentration is in the range of 6-12%, agitating, placing conical bottle with fermenting liquid into table, fermenting to produce gas, injecting water into table, starting table, producing gas by fermented material and collecting gas finally. It is simple and convenient, has more marsh gas output and methane content.

Description

technical field [0001] The invention relates to a method in the field of energy technology, in particular to a method for preparing biogas under laboratory conditions. technical background [0002] Biogas is a gaseous fuel with high calorific value, the main components of which are methane and carbon dioxide. Therefore, it is very meaningful to study the factors that affect the gas production and the content of various gases (mainly methane and carbon dioxide) in the gas, and such research experiments need to prepare and collect biogas in the laboratory. [0003] Biogas projects have been developed for a long time in China, and there are biogas projects of various sizes in operation in various places. However, large-scale biogas projects are not suitable for research. The main purpose of biogas production in the laboratory is for experimental research, so it does not need to produce biogas in large quantities for a long time, and does not have high requirements for the rec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P5/02
CPCY02E50/343Y02E50/30
Inventor 刘荣厚叶子良郝元元
Owner SHANGHAI JIAOTONG UNIV
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