Low-chlorine value biomass briquette fuel and production method thereof

A molding fuel and production method technology, applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problems of long ignition time, enhanced slagging, smoke pollution, etc., achieve low chlorine value, improve mechanical durability, and burn high value effect

Inactive Publication Date: 2016-09-28
蚌埠华东石膏有限公司
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Problems solved by technology

The test results show that after anaerobic fermentation of straw, the energy retained in the biogas residue is greater than the energy transferred to the biogas, and the energy value of the straw biogas residue is high. However, the ash content of the straw after 20 days of fermentation is three times that of the unfermented straw, which may be It will enhance its slagging, and the calorific value of the briquette fuel prepared in this paper is only about 5.82% higher than that of the raw material, which cannot meet the needs of blast furnaces or places with high calorific value, and when used in small cooking stoves, there are problems of misfire and ignition. Long time, smoke pollution and other problems, low combustion efficiency, need to be modified to obtain high calorific value, anti-slagging new biomass briquette fuel

Method used

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Embodiment Construction

[0013] A biomass briquette fuel with low chlorine value, made of the following raw materials in parts by weight: 100 corn stalks, 23 cassava residues, 18 bamboo chips, 7 magnesium carbonate, 6 peat soil, 17 negative ion powder, 1.2 nanometer titanium dioxide, calcium bicarbonate 2. Waste oil 5, activated carbon 10, calcium nitrate 1, appropriate amount of water.

[0014] The preparation method of described a kind of low chlorine value biomass briquette fuel, comprises the following steps:

[0015] (1) Stir the calcium bicarbonate with water until it is completely dissolved, add peat moss and soak for 10-12 hours, take it out and dry it in an oven at 105°C and grind it into powder, add waste oil and mix well, heat up to 80-90°C, and add nano-titanium dioxide Ultrasonic grinding for 10-15 minutes, and spray drying to obtain a combustion aid;

[0016] (2) Soak negative ion powder in 5-10wt% hydrochloric acid solution for 1-2 hours, wash with hot water until there is no chloride ...

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Abstract

The invention discloses a low-chlorine value biomass briquette fuel. According to the invention, the pretreated corn straws are taken as a raw material for anaerobic fermentation for 10-20 days, so that mechanical endurance of the briquette fuel is increased, magnesium carbonate is taken as an anti-slagging agent, during a combustion process, the Mg element and elements such as Si, K, and Na which are inherent in the corn straws and are capable of slagging are subjected to a reaction, a novel compound K2Mg(SO4)2 is generated and provides anti-slagging performance to the briquette fuel, and the produced briquette fuel has the advantages of low chlorine value and high combustion value, no harmful gas is discharged after combustion is carried out, and a boiler is not easily corroded.

Description

technical field [0001] The invention relates to the technical field of biomass fuels, in particular to a low chlorine value biomass briquette fuel and a preparation method thereof. Background technique [0002] Biomass energy has become the fourth largest energy source in the world because of its renewable, abundant resources, and environmental friendliness. It is also the only clean renewable energy that can be transported and stored. It mainly uses modern biomass energy technology to convert agricultural waste and logging residues , livestock and poultry manure, municipal solid waste, domestic sewage and industrial organic wastewater and other raw materials are processed into end products such as biomass pellet fuel, biodiesel and biofuel ethanol. There is almost no SO2 emission in the later utilization process of biomass fuel, which reduces the harm of acid rain and greenhouse effect caused by the flue gas generated in the utilization process, and makes biomass energy hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44
CPCC10L5/40C10L5/445C10L5/447C10L2290/08C10L2290/24C10L2290/32Y02E50/10Y02E50/30
Inventor 张思坦张绪庆胡星
Owner 蚌埠华东石膏有限公司
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