当量比对稻草固定床气化性能的影响  

Effect of Equivalence Ratio on Gasification Characteristics in a Rice Straw Fixed Bed Gasifier

作　　者：顾洁[1] 马中青[1] 刘斌 张齐生[1] 

机构地区：[1]南京林业大学竹材工程研究中心,南京210037 [2]化学工程学院,南京210037

出　　处：《科学技术与工程》2014年第17期201-205,共5页Science Technology and Engineering

基　　金：国家重点基础研究发展计划(973)项目(2010CB732205);林业公益性行业科研专项项目(201304611);高校优势学科建设工程项目资助

摘　　要：为了合理利用大量的农林废弃物资源，减少秸秆燃烧造成的温室效应和环境污染，利用自制的气、固、液多联产固定床气化炉对稻草进行气化。研究了当量比对气化炉主要性能参数的影响。结果表明：当量比为0．25时，气化效果较好，此时气化温度为800—850℃，气化气热值达到2．84MJ·Nm^-3，气体得率为1．2m^3·kg^-1，稻草炭得率为24．94％，提取液得率为22．43％，碳转化率为35．31％，冷气效率为24．61％。稻草气化多联产工艺试验为工程化实施提供了基础和基本数据。In order to take advantage of the large quantity of agriculture and forestry waste biological resources, and reduce greenhouse effect and environmental pollution caused by combustion of rice straw, the rice straw was gasified using homemade poly-generation fixed bed gasifier. The influence of equivalence ratio （ER） on gasification performance was researched. The results showed that under the experimental condition, the best value of ER was 0. 25, the gasification temperature was 800 - 850 ℃, the calorific value of product gas could reach 2. 84 MJ · Nm^-3, the yield of product gas, rice straw carbon and pyrolysis extract liquid was 1.2 m^3 · kg^-1, 24. 94% and 22. 43%, respectively. Carbon conversion efficiency was 35.31%, and cold gas efficiency was 24. 61%. Rice Straw gasification of poly-generation process experiment can provide a theoretical basis for engineering implementation.

关 键 词：气化 当量比 稻草 可燃气 稻草炭 

分 类 号：TK6[动力工程及工程热物理—生物能] S216.2[农业科学—农业机械化工程]