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Derived fuel based on organic refuse fermentation residues and preparation method thereof

A technology for deriving fuel and organic waste, applied in the direction of biofuel, fuel, solid fuel, etc., can solve the problems of inconvenient collection and transportation, perishable odor, high moisture content, etc., and achieve the effects of increasing calorific value, controlling emissions, and stabilizing combustion

Inactive Publication Date: 2015-11-18
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These organic wastes are of great value for development and utilization, but their high water content makes them inconvenient to collect and transport. They are perishable and produce stench. Improper treatment is likely to produce secondary pollutants such as leachate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment provides a derived fuel based on organic waste fermentation residue, its composition and weight percentage ratio is: organic waste fermentation residue 75%, anthracite 15%, wood chips 5%, calcium oxide 3%, binder 2% ; Among them, the binder is prepared by 0.3% sodium carboxymethyl cellulose, 0.7% limestone, and 1% bentonite.

[0030] The preparation method of above-mentioned derivative fuel comprises the steps:

[0031] S1. After adding 1% lactic acid fermenting bacteria and 0.5% glucoamylase to the food waste, ferment at 30°C for 10 days, then separate the fermentation product lactic acid, and bake the remaining residue at 105°C to constant weight.

[0032] S2. Crush the anthracite to a particle size of 2-8mm, and the sawdust to 10-15mm; then mix the organic waste fermentation residue obtained in S1, anthracite, wood chips, and calcium oxide powder according to the above ratio, stir evenly, and let stand for 30 minutes ; Add the binder according to the...

Embodiment 2

[0036] This embodiment provides a derived fuel based on organic waste fermentation residue, its composition and weight percentage ratio is: organic waste fermentation residue 50%, anthracite 25%, wood chips 20%, calcium oxide 2%, binder 3% ; Among them, the binder is prepared by 0.8% sodium carboxymethyl cellulose, 1% limestone, and 1.2% bentonite.

[0037] The preparation method of the above-mentioned derived fuel is basically the same as in Example 1, except that the organic waste in S1 is discarded vegetable leaves and fruits in the farmer's market, and it is anaerobically fermented at 40°C for 20 days, and the fermentation residue is collected at 200 °C to constant weight; the standing time in S2 is 15 minutes; the drying temperature in S3 is 200 °C.

[0038] The calorific value of the derived fuel based on the fermentation residue of organic waste prepared by the above method is 27868.7kJ / kg.

Embodiment 3

[0040] This embodiment provides a derived fuel based on organic waste fermentation residue, its composition and weight percentage ratio is: organic waste fermentation residue 85%, anthracite 5%, wood chips 5%, calcium oxide 2%, binder 3% ; Among them, the binder is prepared by 0.2% sodium carboxymethyl cellulose, 0.5% limestone, and 2.3% bentonite.

[0041] The preparation method of the above-mentioned derived fuel is basically the same as in Example 1, the difference is that in S1, the straw of agricultural and forestry waste is used to ferment ethanol at 30°C for 7 days after adding cellulolytic bacteria and cellulase, and after distilling to obtain ethanol , bake the remaining residue at 300°C to constant weight; the standing time in S2 is 45 minutes; the drying temperature in S3 is 200°C. The calorific value of the derived fuel based on the fermentation residue of organic waste prepared by the above method is 25769.5 kJ / kg.

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Abstract

The invention discloses a derived fuel based on organic refuse fermentation residues and a preparation method thereof. The derived fuel comprises, by weight, 50-85% of the organic refuse fermentation residues, 5-25% of anthracite, 5-20% of wood chips, 0.5-5% of calcium oxide and 1-3% of binding agents. The preparation method of the derived fuel comprises the following steps that 1, after being fermented through microorganisms or / and enzymes, organic refuse is dried to obtain the organic refuse fermentation residues; 2, the organic refuse fermentation residues obtained in the step 1, the anthracite, the wood chips and the calcium oxide powder are evenly mixed in proportion and then stood for a period of time, then the binding agents are added in proportion, and the mixture is evenly mixed; 3, extrusion forming is performed on the mixture obtained in the step 2, and the derived fuel is prepared. According to the derived fuel, the residues after the organic refuse is fermented is utilized for producing the regenerated fuel with high calorific value and low pollution, and full utilization of the organic refuse is achieved.

Description

technical field [0001] The invention belongs to the field of biomass energy, and in particular relates to a derived fuel based on organic waste fermentation residue and a preparation method thereof. Background technique [0002] Currently, municipal solid waste is often used to make derived fuels (RDF). MSW-derived fuel has the characteristics of stable combustion, easy transportation, easy storage, and low secondary pollution, and is widely used in heating engineering, drying engineering, and power generation engineering. [0003] More than 50% of municipal solid waste is organic waste, and it is increasing year by year. Organic waste mainly includes kitchen waste, agricultural and forestry waste (such as lignocellulosic substances, waste from farmers' markets), urban sludge, etc. These organic wastes are of great development and utilization value, but their high water content makes them inconvenient to collect and transport. They are perishable and produce foul odors. Im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/46C10L9/10
CPCY02E50/10Y02E50/30
Inventor 王春铭李子豪林康荣李芯韵
Owner SOUTH CHINA AGRI UNIV