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Solid fuel useful for coal substitutions

A technology for solid fuels and substitutes, applied in the field of solid fuels, can solve the problems of serious energy consumption, processing temperature exceeding 450 ℃, lengthy carbonization process, etc. Effect

Inactive Publication Date: 2017-11-24
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the carbonization process of this fuel is lengthy, and the processing temperature exceeds 450°C, which consumes a lot of energy.

Method used

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  • Solid fuel useful for coal substitutions
  • Solid fuel useful for coal substitutions
  • Solid fuel useful for coal substitutions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Cellulose (2.200g), [C 3 SO 3 Hmim] HSO 4 After mixing ionic liquid (1.000g) and deionized water (6.000g), react at 170°C for 5 hours. The reaction solution is filtered to obtain solid black residue. After washing with water and drying, it is a solid fuel. The measured combustion calorific value is 21745J / g. Among them, the ionic liquid can be recycled.

Embodiment 2

[0026] Cellulose (2.200g), [C 3 SO 3 Hmim] HSO 4 After mixing ionic liquid (1.000g) and deionized water (6.000g), react at 170°C for 5 hours. The reaction liquid is filtered to obtain solid black residue, which is solid fuel after washing with acetone and drying. The calorific value of combustion is determined as 23394J / g. Among them, the ionic liquid can be recycled.

Embodiment 3

[0028] Cellulose (2.200g), 1-methyl-3-(4-sulfonate) butylimidazole benzenesulfonate ([C 4 SO 3 Hmim] PhSO 3 ) ionic liquid (1.000g) and deionized water (3.000g) were mixed, reacted at 180°C for 8 hours, the reaction solution was filtered to obtain solid black residue, washed with water and dried, it was solid fuel, and the heat of combustion was measured as 23440J / g. Among them, the ionic liquid can be recycled.

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Abstract

The invention discloses a solid fuel useful for coal substitutions. Biomass, ionic liquid and water are mixed in a certain proportion, and a heating reaction is carried out, wherein the weight ratio of water to biomass is not greater than 500, the weight ratio of ionic liquid to biomass is not greater than 100, the reaction temperature does not exceed 250 DEG C, the reaction time does not exceed 24 h, solid black slag is obtained through filtering separation of reaction liquid, and the solid fuel is obtained after the solid black slag is washed through a solvent and dried. The raw materials are low in cost and easily obtained, the biomass source is abundant, the ionic liquid catalyst is stable in performance, environment-friendly and can be recycled, and the synthetic method is simple and convenient and is beneficial for changing waste materials into valuable and protecting the environment. The preparation route is simple, the reaction temperature is low, fine chemical engineering products can be obtained through co-production while the solid fuel is prepared, and the economic benefit is improved. The solid fuel provided by the invention can replace traditional non-renewable coal resources, and solves the technical problems which have not been solved yet in the field.

Description

technical field [0001] The invention belongs to the field of energy and chemical industry, and in particular relates to a solid fuel prepared by catalyzing biomass with ionic liquids. Background technique [0002] With the reduction of fossil resources, the development and utilization of renewable resources has become increasingly urgent. Biomass is the only renewable organic carbon source in nature. Energy and chemicals needed for human development can be obtained through the conversion of biomass. Therefore, biomass resources have become the most promising substitutes for fossil resources. [0003] The traditional carbonization technology is a process that puts biomass under anaerobic or anoxic conditions and heats it at high temperature to make it fully decompose volatile matter, with the main purpose of producing charcoal. It is also called carbonization process or dry distillation process. Counting from the piled charcoal method, the slow pyrolysis of biomass has a his...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44C10L5/40C07C53/02C07C51/00C07C59/185C07H3/02C07D307/50C07D307/46C07H1/00
CPCY02E50/10Y02E50/30C10L5/44C07C51/00C07D307/46C07D307/50C07H1/00C07H3/02C10L5/40C07C53/02C07C59/185
Inventor 刘莉申海艳
Owner DALIAN UNIV OF TECH
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