稻壳在水蒸气中气化实验研究

doi:10.16085/j.issn.1000-6613.2017-0330

化工进展 ›› 2017, Vol. 36 ›› Issue (11): 4017-4021.DOI: 10.16085/j.issn.1000-6613.2017-0330

稻壳在水蒸气中气化实验研究

李洪亮^1,2, 李金鸿¹, 李彦豪¹, 方书起^1,2, 陈俊英^1,2, 刘利平^1,2, 白净^1,2

1. 郑州大学化工与能源学院, 河南郑州 450001;
2. 生物质炼制技术与装备河南省工程实验室, 河南郑州 450001

收稿日期:2017-03-01 修回日期:2017-04-16 出版日期:2017-11-05 发布日期:2017-11-05
通讯作者: 白净,博士,讲师,研究方向为新能源开发。
作者简介:李洪亮(1962-),男,硕士,副教授,研究方向为化工、生物化工、可再生能源。E-mail:lihongliang@zzu.edu.cn。

The research of rice husk gasification in steam

LI Hongliang^1,2, LI Jinhong¹, LI Yanhao¹, FANG Shuqi^1,2, CHEN Junying^1,2, LIU Liping^1,2, BAI Jing^1,2

1. School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, Henan, China;
2. . Engineering Laboratory of Henan Province for Biorefinery Technology and Equipment, Zhengzhou 450001, Henan, China

Received:2017-03-01 Revised:2017-04-16 Online:2017-11-05 Published:2017-11-05

摘要/Abstract

摘要： 在流化床实验装置上以水蒸气为气化剂，对稻壳进行热解气化的实验研究，分别考察单因素反应温度（500~700℃）、蒸气流量（7~11kg/h）和进料速率（1.2~3.6kg/h）对产气率及其主要组分（H₂、CO、CH₄、CO₂）的影响。实验结果表明：温度的升高可提高气化气产率及气体组分中CH₄和H₂的含量，同时降低了CO₂的含量，随温度升高，CO的含量呈先增加再降低的趋势。蒸气流量和进料速率的增加对产气率影响分别在500℃和700℃呈现出了不同的规律，说明了在不同反应温度下床内起主导作用的反应不同。在700℃，随蒸气流量和进料速率增加，气化气中H₂、CO和CO₂的含量都有小幅度变化，CH₄体积分数稳定在12%左右。在条件考察范围内，当反应温度为700℃、蒸气流量为7kg/h、进料速率为1.2kg/h时，产气率和H₂体积分数分别有最大值，为725L/h和18.05%。

关键词: 气化, 流化床, 稻壳, 水蒸气

Abstract: The rice husk gasification experiments were performed in a fluidized bed gasifier with steam as gasifying agent. The effects of reaction temperature(500-700℃),steam flow rate(7-11kg/h), and feed rate(1.2-3.6kg/h)on gas yield and the compositions of the main components(H₂,CO,CH₄,CO₂)were investigated,respectively. The results showed that the higher reaction temperature could lead to higher gas yield and higher content of H₂ and CH₄. With the increase of the reaction temperatures,the content of CO first decreased then increased. The effect of the increase of steam flow and feed rate on gas yield at 500℃ and 700℃ was not the same,which indicated that the leading reactions in the fluidized bed at different reaction temperature were different. At 700℃,the increase of the steam flow and feed rates did niot change the content of H₂,CO,and CO₂ significanly;and the volume fraction of CH₄ remained about 12%. Within the scope of the experimental conditions,when the reaction temperature was 700℃,steam flow 7kg/h,and feed rate 1.2kg/h,the gas yield and the volume fraction of H₂ reached the maximum values of 725L/h and 18.05%,respectively.

Key words: gasification, fluidized-bed, rice husk, steam

中图分类号:

李洪亮, 李金鸿, 李彦豪, 方书起, 陈俊英, 刘利平, 白净. 稻壳在水蒸气中气化实验研究[J]. 化工进展, 2017, 36(11): 4017-4021.

LI Hongliang, LI Jinhong, LI Yanhao, FANG Shuqi, CHEN Junying, LIU Liping, BAI Jing. The research of rice husk gasification in steam[J]. Chemical Industry and Engineering Progress, 2017, 36(11): 4017-4021.

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稻壳在水蒸气中气化实验研究

The research of rice husk gasification in steam

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