Sugarcane syrup suitable for lyocell fiber production and preparation method and system thereof

Through two alkali treatment, bleaching and pickling processes, replacing the traditional cooking process, the high energy consumption and safety problems of sugarcane bagasse pulping are solved, and sugarcane pulp that meets the production needs of Lycel fibers is prepared, achieving low energy consumption and efficient industrial production.

CN120443501APending Publication Date: 2025-08-08YIBIN GRACE GROUP CO LTD
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Patent Information

Application Number
CN202510775289.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-11
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

In the prior art, when lyceler fiber is produced using bagasse as raw material, traditional cooking processes lead to high energy consumption and safety risks, and the prepared pulp cannot meet the production needs of lyceler fibers.

Method used

The process flow of two alkali treatment, bleaching, pickling and drying is adopted to replace the traditional cooking and oxygen delignification processes to prepare sugarcane pulp, including the first alkali treatment, the second alkali treatment, bleaching and pickling, control the temperature, time and chemical ratio of each step, and finally swell in the NMMO solution to make a cellulose suspension.

Benefits of technology

It reduces the energy consumption and operation safety of equipment, meets the performance indicators of Lycel fiber production, and achieves efficient and safe sugarcane pulp preparation, which is suitable for industrial production.

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Abstract

The invention discloses sugarcane syrup suitable for lyocell fiber production and a preparation method and system of the sugarcane syrup, and belongs to the technical field of lyocell fiber production. According to the present invention, the sugarcane pulp for lyocell fiber production is prepared sequentially through the first high-concentration alkali treatment, the second low-concentration alkali treatment, the bleaching, the acid washing and the drying, and the processes are matched for use, such that the conditions are milder compared with the traditional pulping and papermaking cooking process and the oxygen delignification, the equipment requirement is low, the production energy consumption is low, and the operation is safe; according to the present invention, the raw material does not need to be crushed, the index of the finally prepared raw material can meet the Lyocell production requirement, the operation process is simple, the industrial application prospect is provided, the production system matched with the method is provided, and the industrial and continuous production of the sugarcane syrup suitable for Lyocell fiber production is achieved.
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