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A kind of biomass-based fuel and preparation method thereof

A biomass and fuel technology, applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problems that the ash melting property of biomass cannot be improved cheaply and efficiently, the cost of additives can be reduced, and the cost of additives is high, so as to improve burnout or The effect of gasification carbon conversion rate, reduction of operating costs, and improvement of energy density and calorific value

Inactive Publication Date: 2016-08-24
JINAN BAOHUA NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to address the current high cost of additives for biomass solid briquettes, the inability to improve the ash melting of biomass cheaply and efficiently, and the incorporation of coal powder, sulfur fixation agent, etc. into biomass briquettes to reduce the burnout performance. Provides a biomass-based fuel and its preparation method, in which additives are blended into biomass and low-sulfur raw coal respectively, simultaneously achieving sulfur fixation and improving ash melting properties; and reducing the cost of additives through comprehensive utilization of waste

Method used

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  • A kind of biomass-based fuel and preparation method thereof
  • A kind of biomass-based fuel and preparation method thereof
  • A kind of biomass-based fuel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A biomass-based fuel for gasification, using rice straw as biomass raw material, crushing it to a length less than 2.5cm, grinding blast furnace slag into 200-mesh powder, and uniformly mixing rice straw and blast furnace slag at a weight ratio of 100:3 Raw material A.

[0037] The mass percentage of CaO in blast furnace slag is 38.5%, SiO 2 The mass percentage content is 36.8%, A1 2 o 3 The mass percentage of FeO is 10.6%, the mass percentage of MgO is 8.7%, the mass percentage of MnO is 2.7%, the mass percentage of FeO is 1.5%, the mass percentage of CaS is 0.8%, and the balance is impurities.

[0038] Select bituminous coal with a total sulfur content of 0.7% as low-sulfur raw coal, grind steel slag into 200-mesh powder, and uniformly mix low-sulfur bituminous coal and steel slag at a weight ratio of 100:5 to obtain raw material B.

[0039] The mass percentage of CaO in steel slag is 48.7%, SiO 2 The mass percentage content is 11.5%, A1 2 o 3 The mass percentag...

Embodiment 2

[0045] A biomass-based fuel for gasification, which is obtained by crushing corn stalks to a length of less than 2.5 cm, grinding blast furnace slag into 300-mesh powder, and uniformly mixing corn stalks and blast furnace slag at a weight ratio of 100:8. Raw material A.

[0046] The mass percentage of CaO in blast furnace slag is 35%, SiO 2 The mass percentage content is 32%, A1 2 o 3 The mass percentage of FeO is 6%, the mass percentage of MgO is 4%, the mass percentage of MnO is 2%, the mass percentage of FeO is 1%, and the balance is impurities.

[0047] Select lignite with a total sulfur content of 0.8% as low-sulfur raw coal, grind steel slag and gas slime into 300-mesh powder according to any weight ratio, and uniformly mix lignite, steel slag and gas slime at a weight ratio of 100:10 to obtain raw material B.

[0048] The mass percentage of CaO in steel slag is 45%, SiO 2 The mass percentage content is 10%, A1 2 o 3 The mass percentage content of FeO is 1%, the ma...

Embodiment 3

[0055] A biomass-based fuel for gasification, using cotton stalks as biomass raw materials, crushing them to a length less than 2.5 cm, grinding blast furnace slag into 400-mesh powder, and uniformly mixing cotton stalks and blast furnace slag at a weight ratio of 100:5 Raw material A.

[0056] The mass percentage of CaO in blast furnace slag is 44%, SiO 2 The mass percentage content is 32%, A1 2 o 3 The mass percentage of FeO is 10%, the mass percentage of MgO is 4%, the mass percentage of MnO is 2%, the mass percentage of FeO is 5%, the mass percentage of CaS is 1%, and the balance is impurities.

[0057] Select lignite with a total sulfur content of 0.8% as low-sulfur raw coal, grind steel slag and gas slime into 400-mesh powder according to any weight ratio, and mix uniformly according to the mixture weight ratio of lignite, steel slag and gas slime of 100:8 to obtain raw material B.

[0058] The mass percentage of CaO in steel slag is 60%, SiO 2 The mass percentage co...

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Abstract

The invention discloses a biomass-based fuel and a preparation method thereof, including biomass and biomass additives, low-sulfur coal with a total sulfur content of less than 0.9 on a dry basis, and low-sulfur coal additives, wherein the biomass and biomass additives are based on weight The first mixture is formed by mixing in a ratio of 100:3 to 8, and the low-sulfur coal and low-sulfur coal additives are mixed in a weight ratio of 100:5 to 10 to form a second mixture; the first mixture and the second mixture are mixed in a weight ratio of 60 to 10. 90:10-40 is mixed uniformly to make biomass-based fuel; the biomass additive is blast furnace slag; the low-sulfur coal additive is one or two of steel slag and gas mud mixed according to any weight ratio. In the invention, the additive is compounded into the biomass and the low-sulfur raw coal respectively, and the sulfur fixation and the improvement of the ash melting property are realized at the same time; and the cost of the additive is reduced by comprehensively utilizing the waste.

Description

technical field [0001] The invention relates to a biomass-based fuel and a preparation method thereof. Background technique [0002] Biomass energy has the dual attributes of being renewable and environmentally friendly. The development of biomass energy is not only conducive to realizing energy diversification, alleviating the shortage of conventional fossil energy, but also reducing greenhouse gas emissions. Biomass fuel molding technology refers to a high-tech technology that compresses various loose and finely divided biomass wastes into rod-shaped, block-shaped, and granular fuels with regular shapes under certain temperature and pressure conditions to solve the problem of biomass transportation. , storage, fire protection and other issues. The country's "12th Five-Year Plan for Biomass Energy Development" clearly proposes to establish a system for the production, storage, transportation and use of biomass briquettes, to promote centralized heating of biomass briquette...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/44C10L9/10
CPCY02E50/10Y02E50/30
Inventor 韩奎华林磊李辉张新建张晓峰王兵林国栋
Owner JINAN BAOHUA NEW ENERGY TECH
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