利用固体磷酸催化热解纤维素制备左旋葡萄糖酮

doi:10.3969/j.issn.0438-1157.2014.03.021

化工学报 ›› 2014, Vol. 65 ›› Issue (3): 912-920.DOI: 10.3969/j.issn.0438-1157.2014.03.021

• 催化、动力学与反应器 • 上一篇下一篇

利用固体磷酸催化热解纤维素制备左旋葡萄糖酮

张智博, 董长青, 叶小宁, 陆强, 刘永前

华北电力大学生物质发电成套设备国家工程实验室, 北京 102206

收稿日期:2013-05-26 修回日期:2013-07-27 出版日期:2014-03-05 发布日期:2014-03-05
通讯作者: 陆强
作者简介:张智博（1988—），男，博士研究生。
基金资助:
国家自然科学基金项目（51276062）；国家科技支撑计划项目（2012BAD30B01）；高等学校学科创新引智计划项目（B12034）。

Preparation of levoglucosenone by catalytic pyrolysis of cellulose over solid phosphoric acid

ZHANG Zhibo, DONG Changqing, YE Xiaoning, LU Qiang, LIU Yongqian

National Engineering Laboratory for Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China

Received:2013-05-26 Revised:2013-07-27 Online:2014-03-05 Published:2014-03-05
Supported by:
supported by the National Natural Science Foundation of China (51276062), the National Key Technology R&D Program (2012BAD30B01) and 111 Project (B12034).

摘要/Abstract

摘要： 以SBA-15为载体制备了固体磷酸，将其和纤维素机械混合后进行快速热解制备左旋葡萄糖酮（LGO）。通过Py-GC/MS（快速热解-气相色谱/质谱联用）实验，考察了催化热解温度、催化剂/纤维素比例对纤维素热解生成LGO以及其他产物的影响。实验结果表明，固体磷酸能够抑制纤维素热解形成左旋葡萄糖（LG）等产物，并大幅促进LGO的生成，从而高选择性地获得以LGO为主的热解产物。在热解温度为350℃以及催化剂/纤维素比例为1/1的条件下，可获得最高的LGO产率与相对含量，相对峰面积值高达68.6%。此外固体磷酸还能促进LG脱水形成LGO。

关键词: 固体磷酸, 热解, 催化, 生物质, 左旋葡萄糖酮, Py-GC/MS

Abstract: Solid phosphoric acid supported on SBA-15 carrier was mechanically mixed with the cellulose, and then the mixture was subjected to fast pyrolysis to prepare levoglucosenone (LGO). Using Py-GC/MS (pyrolysis-gas chromatography/mass spectrometry) the effect of temperature and catalyst/cellulose ratio on pyrolytic products mainly LGO was examined. The results indicated that the presence of solid phosphoric acid could inhibit formation of levoglucosan (LG) and other byproducts, but promote greatly and selective formation of LGO, one of major pyrolytic products. The maximal LGO yield and relative content were obtained at the temperature of 350℃ and the catalyst/cellulose ratio of 1/1, having the relative peak area of 68.6%. Moreover, the solid phosphoric acid would also promote the dehydration of LG to form LGO.

Key words: solid phosphoric acid, pyrolysis, catalysis, biomass, levoglucosenone, Py-GC/MS

中图分类号:

张智博, 董长青, 叶小宁, 陆强, 刘永前. 利用固体磷酸催化热解纤维素制备左旋葡萄糖酮[J]. 化工学报, 2014, 65(3): 912-920.

ZHANG Zhibo, DONG Changqing, YE Xiaoning, LU Qiang, LIU Yongqian. Preparation of levoglucosenone by catalytic pyrolysis of cellulose over solid phosphoric acid[J]. CIESC Journal, 2014, 65(3): 912-920.

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利用固体磷酸催化热解纤维素制备左旋葡萄糖酮

Preparation of levoglucosenone by catalytic pyrolysis of cellulose over solid phosphoric acid

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