Method and system for preparing sustainable aviation kerosene through methanol based on biomass gasification

By combining biomass gasification and syngas purification and regulation with methanol conversion and oligomerization hydrogenation refining, the problems of low carbon conversion rate and high energy consumption in existing aviation kerosene production have been solved, achieving efficient, low-carbon, and sustainable aviation kerosene production.

CN121136728APending Publication Date: 2025-12-16CHINA CHEM CONSTR INVESTMENT GRP ANHUI ENG CO LTD +1
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Patent Information

Application Number
CN202511358321.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Existing aviation kerosene production technologies are limited by their reliance on fossil resources, low carbon conversion rates, high energy consumption, and high proportion of byproducts, making it difficult to meet the demand for large-scale, low-carbon, and sustainable supply.

Method used

Syngas is generated by biomass gasification. The H2/CO molar ratio is adjusted through purification and ratio control units. Combined with methanol synthesis, low-carbon olefin conversion, oligomerization and hydrogenation refining, a series process is constructed to achieve efficient conversion and optimize the quality of end products using renewable biomass as raw material.

Benefits of technology

It improves carbon conversion efficiency, enhances the quality of intermediate products and the selectivity of end products, reduces energy consumption and carbon emissions, is feasible for industrial application, and conforms to the trend of low-carbon and sustainable development.

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Abstract

The invention relates to the technical field of biomass energy conversion, in particular to a method and system for preparing sustainable aviation kerosene through methanol based on biomass gasification. The method sequentially comprises the steps of biomass gasification, purification and proportion adjustment, methanol synthesis, methanol-to-olefin conversion, oligomerization reaction and hydrofining. The selectivity of a target component is effectively improved by regulating and controlling the H2 / CO molar ratio to 2.0-2.2 and realizing multi-section conversion and heat energy gradient recovery under middle and high pressure. The condensation point of the finished product can reach-48 DEG C, the aromatic hydrocarbon mass fraction is as low as 0.22%, and the aviation fuel standard requirements are met. The method has the advantages of being high in carbon utilization rate, excellent in product quality, low in energy consumption, suitable for large-scale operation and the like, and is suitable for green manufacturing of sustainable aviation fuel.
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