基于TG-FTIR的生物质内在金属盐催化热解研究

工程热物理学报 , 2014, 35(10): 2093-2096.

基于TG-FTIR的生物质内在金属盐催化热解研究

何立模 ^1, , 胡松 ^2, , 孙路石 ^3, , 苏胜 ^4, , 江龙 ^5, , 宋尧 ^6, , 帅超 ^7, , 向军 ^8,

1.华中科技大学煤燃烧国家重点实验室,武汉430074

2.华中科技大学煤燃烧国家重点实验室,武汉430074

3.华中科技大学煤燃烧国家重点实验室,武汉430074

4.华中科技大学煤燃烧国家重点实验室,武汉430074

5.华中科技大学煤燃烧国家重点实验室,武汉430074

6.华中科技大学煤燃烧国家重点实验室,武汉430074;科廷科技大学燃料与能源技术研究所,珀斯WA6102,澳大利亚

7.华中科技大学煤燃烧国家重点实验室,武汉430074

8.华中科技大学煤燃烧国家重点实验室,武汉430074

基金项目: 国家自然科学基金资助项目(No.51176062,No.21176098) “十二五”国家高技术研究发展计划(No.2012AA063504)

关键词：稻草 , 热解 , 热重博里叶红外光谱联用 , 内在金属盐

TG-FTIR Study Catalytic Effect of Inherent Metal Salt on Biomass Pyrolysis

Keywords： rice straw , pyrolysis , TG-FTIR , inherent metal salt

采用热重和傅里叶红外光谱联用(TG-FTIR)对去离子水、盐酸淋洗后的稻草样品和原样进行分析,探讨生物质内在金属盐对热解过程和产气组分的催化作用规律.结果表明:碱金属对稻草样品热解具有重要的催化作用,相反Ca等碱土金属抑制了纤维素的分解.红外检测的三种样品热解气体产物主要为CO2、CO、CH4、H2O和一些含C-O-C和C=O半挥发性有机物.经过水洗后CO2、CO产量减少,CH4和半挥发性有机物产量增加;而酸洗样品气体产量都明显低于其它两种样品.这些与稻草内在碱金属和碱土金属盐的不同催化作用有关.

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