Solid waste treatment and hydrogen production technology

A solid waste and technology technology, applied in the field of solid waste treatment and hydrogen production, can solve the problems of lack of practical significance, environmental pollution, low hydrogen production efficiency, etc., and achieve significant economic benefits, huge market and potential effects

Inactive Publication Date: 2019-05-21
宋智
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few studies on the biohydrogen production of natural agricultural wastes. Although there are some research reports, the hydrogen production efficiency is very low and lacks practical significance.
In fact, the existing biohydrogen production method from organic wastewater is not suitable for agricultural waste, because the vast majority of agricultural waste cannot produce hydrogen with the existing anaerobic fermentation biohydrogen production method, or produces very little hydrogen
[0004] The acreage of crops is huge, and a large amount of crop stalks are mostly incinerated except for a few used as fuel, which not only causes a major waste of biomass resources, but also causes serious environmental pollution problems; the disposal and stacking of other agricultural wastes is also a problem. very prominent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: After the corn stalks are pulverized to 20 mesh with a feed mill, take 15 grams of corn stalks in a 500 ml beaker, add 90 ml of 0.15 to 0.2% dilute hydrochloric acid solution, boil for 30 minutes on a warm fire, and after cooling, use The diluted sodium hydroxide solution is neutralized to neutrality (the pH value is about 5-7) and then used for later use (A).

[0012] Transfer the above-mentioned pretreated corn stalks (A) to a 500 ml anaerobic reactor, add 20 grams of heat-treated cow dung compost, and 3 ml of nutrient solution (the composition of the nutrient solution is: NH4HCO3 2.0g / liter; KH2PO4 1.0g g MgSO4·7H2O 100mg g / liter; NaCl 10mg g / liter; Na2MoO4·2H2O 10mg g / liter; CaCl2·2H2O 10mgg / liter; MnSO4·7H2O 15mgg / liter; FeCl2 2.78mg g / liter), add water to 300ml , using the known anaerobic fermentation biological hydrogen production method to obtain the mixed biogas of hydrogen and carbon dioxide, the maximum concentration of hydrogen in the biogas is...

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Abstract

The invention provides a solid waste treatment and hydrogen production technology. The technology pre-treats agricultural solid wastes by a chemical method and then uses known an anaerobic fermentation method to produce hydrogen. A chemical pretreatment process of agricultural solid waste includes: a, acidification: acidification of agricultural solid waste by adding hydrochloric acid; b. heating:direct heating or microwave heating of an acidified hydrochloric acid suspension containing agricultural solid waste; and c. neutralization: neutralization of the hydrochloric acid suspension after the heat treatment with a sodium hydroxide solution to make the hydrochloric acid suspension close to neutral. Biohydrogen production is then carried out using the known anaerobic fermentation.

Description

technical field [0001] The invention relates to a hydrogen production method, in particular to a solid waste treatment and hydrogen production technology. Background technique [0002] As an ideal clean energy, hydrogen is mainly manifested in: (1) High combustion calorific value: 1 kg of hydrogen can release 28,900 kcal of heat after burning, which is about 3 times that of petroleum, 3.9 times that of alcohol, and 4.5 times that of coke; (2) Clean and pollution-free: when hydrogen burns, it does not produce greenhouse gases and other substances harmful to the human body, and the by-product is only water; (3) Hydrogen has a wide range of applications: as a clean energy, hydrogen is widely used in aerospace industries such as space shuttles and rockets The fuel of the sector has important uses in future electric vehicles, urban public transport and hydrogen power generation; hydrogen, as a basic chemical raw material, is also widely used in petrochemical, chemical pharmaceuti...

Claims

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Application Information

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IPC IPC(8): C12P3/00
Inventor宋智
Owner宋智