2014, Volume 16, Issue 4
Strategic Study of CAE >> 2014, Volume 16, Issue 4
Study on pyrolysis characteristic of pre-treated rubber seed shell
College of Material Engineering，Southwest Forestry University，Kunming 650224，China
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Abstract
In order to investigate the influence of pre-treatment methods such as water wash， acid wash and molten salt on biomass pyrolysis characteristic，rubber seed shell was selected as biomass feedstock.Deionized water，hydrochloric acid，sulfuric acid and methanoic acid and mixed acid as well as KCl and NaOH，whose mass fractions were 5 %，10 % and 15 %，respectively，were used to wash rubber seed shell，and the thermal decomposition behaviors and comprehensive index of rubber seed shell pyrolysis were analyzed. At the sametime，the kinetic parameters were studied. The results showed that water wash and acid wash can make thermo-gravimetric analysis and derivative thermogravimetric analysis curves of rubber seed shell pyrolysis shift to higher temperature section，and the maximum weight loss rate and temperature increased，but the melted salt was decreasing. The impacts of the concentration of hydrochloric acid and methanoic acid were negligible，but that of sulfuric acid was significant which became obvious with the increasing concentration. Acid wash was in favor of the emission of volatile matters contained in rubber seed shell，and can eliminate the sylvite.The ability order of three acids was as follows：sulfuric acid，hydrochloric acid and methanoic acid. The thermal comprehensive characteristic index of pyrolysis decreased after rubber seed shell was pretreated，and changed with the acid concentration.
Keywords
rubber seed shell ; pyrolysis ; thermogravimetric analysis ; kinetic parameters ; pretreatment
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References
[ 1 ] 廖艳芬，马晓茜，孙永明. 木材热解及金属盐催化热解动力学特 性研究[J]. 林产化学与工业，2008，28(5)：45-50. link1
[ 2 ] 蔡腾跃，姬登祥，于凤文，等. 生物质在熔盐中的热裂解特性[J]. 农业工程学报，2010，26(4)：243-247. link1
[ 3 ] Jiang Hongtao，Ai Ning，Wang Min，et al. Experimental study on thermal pyrolysis of biomas in molten salt media[J]. Electrochemistry，2009，77(8)：730-735. link1
[ 4 ] Pushkaraj R Patwardhan，Justinus A Satrio，Robert C Brown，et al. Influence of inorganic salts on the primary pyrolysis products of cellulose[J]. Bioresource Technology，2010，101：4646-4655. link1
[ 5 ] 谭 洪，王树荣. 酸预处理对生物质热裂解规律影响的试验研究 [J]. 燃料化学学报，2009，37(6)，668-672. link1
[ 6 ] 郑 赟. 基于组分分析的生物质热裂解动力学机理研究[D]. 杭 州：浙江大学，2006. link1
[ 7 ] 傅旭峰，仲兆平，肖 刚，等. 几种生物质热解特性及动力学的对 比[J]. 农业工程学报，2009，25(1)：199-202. link1
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