Method for producing fuel and road asphalt modifier by utilizing waste and old textiles

A technology of waste textiles and road asphalt, which is applied in the direction of fuel, liquid carbon-containing fuel, solid waste removal, etc., can solve the problems of air pollution, high technical requirements, high investment costs, etc., to reduce dependence on oil, reduce environmental pollution, The effect of mitigating environmental pollution

Active Publication Date: 2015-04-22
河南卓谷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]However, there are some shortcomings in the above methods, such as physical recycling is difficult to classify blended fibers, and the applicability is poor. The cost is high and the recycling process is complicated; energy recovery is to convert chemical fibers with high calorific value in waste textiles into heat through incineration, and the incineration method not only has high investment costs, low resource utilization rate, but also causes serious air pollution

Method used

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  • Method for producing fuel and road asphalt modifier by utilizing waste and old textiles

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Embodiment 1

[0021] Such as figure 1 As shown, the method of using waste textiles to produce fuel and road asphalt modifier in this embodiment includes the following steps: (1) Pretreatment of waste textiles: first, the waste textiles are subjected to dedusting, impurity removal, bleaching, washing and drying in sequence. Dry processing, then cutting, tearing, opening and carding to obtain monofilaments; (2) dissolving the monofilaments obtained in step (1) with a sodium hydroxide / urea aqueous solution with a temperature of 285K and a mass concentration of 20% body, wherein the sodium hydroxide / urea aqueous solution is a mixed aqueous solution of 5wt% sodium hydroxide / 15wt% urea, and after solid-liquid separation, cotton cellulose solution and undissolved chemical fibers are obtained; (3) to cotton cellulose solution Add 20mL of KSM-9 strain to the medium, at a temperature of 30 oC , hydrolysis under the condition of pH 4 for 72 hours to obtain ethanol or; (4) co-liquefying lignite, red ...

Embodiment 2

[0025] Such as figure 1As shown, the method of using waste textiles to produce fuel and road asphalt modifier in this embodiment includes the following steps: (1) Pretreatment of waste textiles: first, the waste textiles are subjected to dedusting, impurity removal, bleaching, washing and drying in sequence. Dry processing, then cutting, tearing, opening and carding to obtain monofilaments; (2) dissolving the monofilaments obtained in step (1) with a lithium hydroxide / urea aqueous solution at a temperature of 253K and a mass concentration of 70% body, wherein the lithium hydroxide / urea aqueous solution is a mixed aqueous solution of 9wt% lithium hydroxide / 10wt% urea, and the cotton cellulose solution and undissolved chemical fibers are obtained after solid-liquid separation; (3) to the cotton cellulose solution Add 30mL of KSM-635 strain to the oC , hydrolysis at pH 8 for 50 hours to produce ethanol; (4) Co-liquefy long-flame coal, red mud catalyst, catalytic cracking oil sl...

Embodiment 3

[0028] Such as figure 1 As shown, the method of using waste textiles to produce fuel and road asphalt modifier in this embodiment includes the following steps: (1) Pretreatment of waste textiles: first, the waste textiles are subjected to dedusting, impurity removal, bleaching, washing and drying in sequence. Dry processing, then cutting, tearing, opening and carding to obtain monofilaments; (2) dissolving the monofilaments obtained in step (1) with a lithium hydroxide / urea aqueous solution at a temperature of 300K and a mass concentration of 90% body, wherein the lithium hydroxide / urea aqueous solution is a mixed aqueous solution of 5wt% lithium hydroxide / 18wt% urea, and after solid-liquid separation, cotton cellulose solution and undissolved chemical fibers are obtained; (3) to the cotton cellulose solution Add 5mL of 18mol / L homogeneous catalyst sulfuric acid, at a temperature of 50 o C. Hydrolyze for 45 hours under the condition of pH 4 to produce methanol; (4) Co-liquefy...

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Abstract

A disclosed method for producing a fuel and a road asphalt modifier by utilizing waste and old textiles comprises the following steps: (1) pre-treating waste and old textiles, namely, successively performing dedusting, impurity removal, bleaching, washing and baking processing on waste and old textiles, and then performing cutting, tearing, loosening and carding to obtain single fibrous body; (2) dissolving the single fibrous body obtained in the step (1) by using an alkali solution, and performing solid-liquid separation to obtain a gossypin solution and undissolved chemical fiber; (3) adding cellulase into the gossypin solution for hydrolyzing, or adding a catalyst for hydrolyzing, or performing anaerobic fermentation, so as to prepare a biological fuel; and (4) adding low-coalification-degree coal, a catalyst and a solvent into the undissolved chemical fiber obtained in the step (2) for coliquefaction, so as to prepare a liquid fuel and the road asphalt modifier. The method converts waste and old textiles into the fuel and prepares the road asphalt modifier, comprehensively utilizes coal and waste and old textiles, and reduces environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of solid waste utilization and renewable energy preparation, and specifically relates to a method for producing fuel and road asphalt modifier by using waste textiles. Background technique [0002] my country has a population of more than 1.3 billion. It is estimated that rural residents generally have 2 sets of waste clothes per person per year, while urban residents have about 3 sets. Based on this calculation, my country can produce more than 3.1 billion sets of waste clothes a year, or about 6 million tons. In addition to other waste textiles, such as staple fibers, waste yarn, recycled silk, scraps, etc., nearly 26 million tons of textile waste can be produced every year. Today, when environmental protection and green development are advocated all over the world, the research and development of waste textile recycling technology has far-reaching significance and great potential in both the sustainable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/02B09B3/00C08L95/00C08K11/00
Inventor 陈垒王艳张晓静曹毅李延勋张晓峰吕和坤赵龙涛王非王延伟
Owner 河南卓谷科技有限公司
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