Use of screw extruder in preparing biofuel oil and fuel gas with biomass

Abstract

The present invention belongs to the field of comprehensive biomass utilizing technology, and is especially use of screw extruder in preparing biofuel oil and fuel gas with biomass. Screw extruder is utilized in compressing water-containing biomass material, and by means of regulating the staying time of the biomass material in the heating area of the screw extruder, biofuel oil and fuel gas with low oxygen content and high heat value may be produced. In the product, fuel gas accounts for 50-70 % and biofuel oil 10-20 %, and the obtained biofuel oil has heat value of 30-46 MJ / kg and oxygen content less than 6 %.

Description

technical field

[0001] The invention belongs to the technical field of comprehensive utilization of biomass, in particular to the application of a screw extruder in the process of thermal conversion of biomass to prepare bio-fuel (including gasoline, diesel and kerosene fractions) and combustible gas. Background technique

[0002] Yuan Zhenhong, Wu Chuangzhi and others edited the book "Principles and Technologies of Biomass Energy Utilization" (Chapter 5, Section 1, Pages 149-153), pointing out that at present, the technology of screw extruding biomass is widely used in biomass compression molding. In the process, there is no report on the application of biomass thermochemical conversion process. The device for preparing liquid fuel and combustible gas by thermochemical conversion of biomass is described in detail in the book "Principles and Technologies of Biomass Energy Utilization" (Chapter 8, Section 2, pp. 296-299) edited by Yuan Zhenhong and Wu Chuangzhi. Introduction...

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