高热值板栗壳基生物质炭的制备(英文)  

Preparation of a biochar with a high calorific value from chestnut shells

作　　者：姜可茂 程朝歌 冉敏[1] 吕永根[1,2] 吴琪琳[1,2] JIANG Ke-mao;CHENG Chao-ge;RAN Min;LU Yong-gen;WU Qi-lin(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Shanghai 201620,China;College of Materials science and Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]纤维材料改性国家重点实验室,上海201620 [2]东华大学材料学院,上海201620

出　　处：《新型炭材料》2018年第2期183-187,共5页New Carbon Materials

基　　金：National Natural Science Foundation of China(60975059);Research and Innovation Project of Shanghai Municipal Education Commission(14ZZ069)~~

摘　　要：生物质材料的再利用是缓解能源问题的有效方法。板栗壳作为一种富含纤维素、半纤维素和木质素的生物质材料,直接燃烧的热值很低。本文通过催化、预氧化及炭化3个过程,制备了板栗壳基生物质炭,并研究了在炭化过程中板栗壳的热解行为、结构和性能的转变。结果表明,炭化温度影响板栗壳基生物质炭的产率和热值。在750℃时,板栗壳基生物质炭有44.31%的产率,并且热值高达35.48 MJ/kg,明显大于一级精煤30 MJ/kg。The recovery of biomass provides a solution for solving the energy shortage problem.Chestnut shells consist of cellulose,hemicellulose and lignin,and have a low calorific value.We propose a method to produce a biochar with a high calorific value from chestnut shells by catalytic pre-oxidation and pyrolysis with sulfuric acid and urea.The pyrolysis behavior and the changes in structure and properties were investigated.Results indicate that the catalysts slow the pyrolysis reaction,leading to a high-quality char.The carbon content and calorific value are related to the pyrolysis temperature.When the chestnut shells are pyrolyzed at 750℃,the yield and calorific value of the char are 44.31 wt%and 35.48 MJ/Kg,respectively.The calorific value of the char is higher than that of first-level cleaned coal(30.00 MJ/Kg).

关 键 词：板栗壳 生物质炭 结构和性能 热值 

分 类 号：TQ127.11[化学工程—无机化工]