Co-production preparation method of bamboo biomass fuel and bamboo pulp

Abstract

The invention relates to a co-production preparation method of bamboo biomass fuel and bamboo pulp, and the method comprises the following steps: (1) performing hot-water extraction for getting a hemicellulose extract liquid; (2) extruding and rubbing cellulose, and extruding for removing a hemicellulose and lignin extract liquid and further getting a filamentous material; (3) performing depth extraction on the cellulose and preparing the bamboo pulp: adding alkali into the filamentous material, performing heating-up treatment, washing, and filtering out a hemicellulose and lignin degradation solution, thus getting the bamboo pulp; (4) preparing biomass fuel ethanol: separating hemicellulose, performing saccharification conversion, further inoculating microzyme for fermentation, and performing distillation and concentration to get the biomass fuel ethanol; and (5) preparing biomass fuel particles: smashing slender bamboo tails, branches and leaves, then mixing with sludge and residual liquid after separating the hemicellulose in the step (4), and performing extrusion forming and drying for getting the biomass fuel particles. The process is advanced; and furthermore, on the premise of not increasing the production cost, the utilization rate of bamboo resources is improved, the economic benefits are increased and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of renewable biomass energy and renewable textile raw materials, in particular to a co-production preparation method of bamboo biomass fuel and bamboo pulp. Background technique [0002] Bamboo grows fast, can be planted once for multiple rotations, and has strong renewability. Bamboo fiber has stronger moisture absorption and air permeability than other fibers, making bamboo pulp more suitable for making summer clothes, sportswear and underwear. Bamboo pulp has been rapidly developed as a renewable textile raw material. The main technical indicators of bamboo pulp are as follows: 1. The cellulose content should not be less than 98%; 2. The hemicellulose content should be controlled below 2.0%; 3. The lignin content should not exceed 1.0%. The main components and contents of bamboo are: 40-60% cellulose content, 20-30% hemicellulose content, and 19-28% lignin content. During the process of bamboo pulping, ...

AI Technical Summary

Problems solved by technology

During the process of bamboo pulping, a large amount of hemicellulose and lignin will be dissolved, causing serious environmental pollution. The high investment and operating costs of sewage treatment equipment will increase the production cost of enterprises and affect economic benefits. Research on renewable biomass energy has also been paid more and more attention. The remaining bamboo tails and branches and leaves in the process of bamboo pulping have not been effectively utilized, which increases the load on resources and the environment.

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