微波裂解稻壳生物焦水浸出物及固体残渣的利用

化工进展

微波裂解稻壳生物焦水浸出物及固体残渣的利用

王允圃1，2?，刘玉环1，2，阮榕生1，2，温平威2，姚远1，2，万益琴1，2，刘英语1，2，程方园1，2

1南昌大学生物质转化教育部工程研究中心，江西南昌 330047；2南昌大学食品科学与技术国家重点实验室，江西南昌 330047

出版日期:2014-04-05 发布日期:2014-04-05

Utilization of water extract and solid residues of rice husk biochar after microwave pyrolysis

WANG Yunpu1，2，LIU Yuhuan1，2，RUAN Rongsheng1，2，WEN Pingwei 2，YAO Yuan1，2，WAN Yiqin1，2，LIU Yingyu1，2，CHENG Fangyuan1，2

1Engineering Research Center for Biomass Conversion，Ministry of Education，Nanchang University，Nanchang 330047，China；2State Key Laboratory of Food Science and Technology，Nanchang University，Nanchang 330047，China

Online:2014-04-05 Published:2014-04-05

摘要/Abstract

摘要： 微波裂解稻壳提取乙酸和糠醛后得到低硫高硅的生物焦，采用水浸渍的方法，将生物焦中的矿物质和糖类物质分离后浓缩结晶，通过ICP-AES、GC-MS等分析，磷、钾以及葡萄糖、甘露糖含量较高。以剩余的生物焦粉末为原料制备生物质蜂窝煤，确定生物质蜂窝煤最佳固体残渣与黏土配比为10∶4，生物质蜂窝煤单位质量发热量达到了矿物质蜂窝煤的70%，为其发展成为可再生固体燃料提供可靠的科学依据。

关键词: 稻壳生物焦, 水浸提物, 生物质蜂窝煤

Abstract: A low sulfur and high silicon biochar was prepared by microwave pyrolysis of rice husk after extracting acetic acid and furfural. The biochar of trace elements and residual sugars are separated by water extraction，and then concentrated by crystallization，which were analyzed by ICP-AES、GC-MS. The content of P，K，Glucose and Mannose was high. The solid residues obtained after the extraction are mixed with clays and other additives，then compressed into briquettes of biomass to determine the optimum molding ratio (solid residues∶clays=10∶4)，the unit of mass of biomass honeycomb briquette’s Calorific value covered 70% mineral honeycomb briquette. It gave a reference for renewable solid fuel.

Key words: rice husk biochar, water extract, biomass honeycomb briquette

王允圃1，2?，刘玉环1，2，阮榕生1，2，温平威2，姚远1，2，万益琴1，2，刘英语1，2，程方园1，2. 微波裂解稻壳生物焦水浸出物及固体残渣的利用[J]. 化工进展.

WANG Yunpu1，2，LIU Yuhuan1，2，RUAN Rongsheng1，2，WEN Pingwei 2，YAO Yuan1，2，WAN Yiqin1，2，LIU Yingyu1，2，CHENG Fangyuan1，2. Utilization of water extract and solid residues of rice husk biochar after microwave pyrolysis[J]. Chemical Industry and Engineering Progree.