改性ZSM-5分子筛催化裂解湛江等鞭金藻制取低碳烯烃

doi:10.1016/S1872-2067(14)60026-7

催化学报 ›› 2014, Vol. 35 ›› Issue (5): 684-691.DOI: 10.1016/S1872-2067(14)60026-7

改性ZSM-5分子筛催化裂解湛江等鞭金藻制取低碳烯烃

董兴隆^a,b, 薛松^c, 张今令^a, 黄为^a, 周建男^c, 陈兆安^a, 袁丹华^a,b, 徐云鹏^a, 刘中民^a

a 中国科学院大连化学物理研究所甲醇制烯烃国家工程实验室, 洁净能源国家实验室, 辽宁大连116023;
b 中国科学院大学, 北京100049;
c 中国科学院大连化学物理研究所, 辽宁大连116023

收稿日期:2013-11-15 修回日期:2014-01-03 出版日期:2014-04-18 发布日期:2014-04-24
通讯作者: 云鹏，刘中民
基金资助:
中国科学院知识创新工程项目（KGCX2-YW-223）；中国科学院百人计划（A1097）；国家重点基础研究发展计划（973计划，2009CB220004，2011CBA00803）；中国科学院知识创新工程项目（KSCX2-YW-G-073，KSCX2-YW-373-2）；中国科学院大连化学物理研究所知识创新工程（K2010A3）.

The production of light olefins by catalytic cracking of the microalga Isochrysis zhanjiangensis over a modified ZSM-5 catalyst

Xinglong Dong^a,b, Song Xue^c, Jinling Zhang^a, Wei Huang^a, Jiannan Zhou^c, Zhaoan Chen^a, Danhua Yuan^a,b, Yunpeng Xu^a, Zhongmin Liu^a

a National Engineering Laboratory for Methanol to Olefins, National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China

Received:2013-11-15 Revised:2014-01-03 Online:2014-04-18 Published:2014-04-24
Supported by:
This work was supported by Knowledge Innovation Programs of the Chinese Academy of Sciences (KGCX2-YW-223), the Hundred Talent Program of the Chinese Academy of Sciences (A1097), the National Basic Research Program of China (973 Program, 2009CB220004, 2011CBA00803), the Knowledge Innovation Programs of the Chinese Academy of Sciences (KSCX2-YW-G-073, KSCX2-YW-373-2), and the Knowledge Innovation Programs of Dalian Institute of Chemical Physics, CAS (K2010A3).

摘要/Abstract

摘要：

研究了湛江等鞭金藻（Isochrysis zhanjiangensis）在改性ZSM-5分子筛上催化裂解制取低碳烯烃的过程. 与热裂解过程相比，湛江等鞭金藻催化裂解可以得到更高的低碳烯烃选择性和收率. 同时还研究了湛江等鞭金藻中不同油脂和藻渣的催化裂解. 结果表明，微藻中的油脂能有效转化为烯烃，其中中性脂的烯烃收率最高，可达36.7%. 不同溶剂抽提后得到的藻渣也可转化为低碳烯烃，但收率远低于微藻中的油脂. 微藻中的油脂，特别是中性脂，是烯烃的主要贡献者，提高微藻中的中性脂含量能够得到更高的低碳烯烃收率.

关键词: 微藻, 湛江等鞭金藻, 催化裂解, ZSM-5, 低碳烯烃

Abstract:

This study investigated the catalytic cracking of the microalga Isochrysis zhanjiangensis over a modified ZSM-5 catalyst with the aim of producing C2-C4 light olefins. Compared with the thermal cracking process, the catalytic cracking of this microalga displayed higher selectivity for and greater yield of these olefins. The catalytic cracking of extracted lipids and the corresponding residues of the microalga was also examined, and the results showed that the lipids could be efficiently converted to light olefins. The catalytic cracking of lipids extracted by different solvents demonstrated that neutral lipids gave the highest yield of light olefins at 36.7%. The yields of light olefins obtained from catalytic cracking of the extraction residues were much lower than the yields obtained from lipids, and thus the lipids, especially the neutral lipids, are the primary contributors to the generation of light olefins. Isochrysis zhanjiangensis with an elevated neutral lipid content will therefore give the highest yield of light olefins through catalytic cracking.

Key words: Microalgae, Isochrysis zhanjiangensis, Catalytic cracking, ZSM-5, Light olefins

董兴隆, 薛松, 张今令, 黄为, 周建男, 陈兆安, 袁丹华, 徐云鹏, 刘中民. 改性ZSM-5分子筛催化裂解湛江等鞭金藻制取低碳烯烃[J]. 催化学报, 2014, 35(5): 684-691.

Xinglong Dong, Song Xue, Jinling Zhang, Wei Huang, Jiannan Zhou, Zhaoan Chen, Danhua Yuan, Yunpeng Xu, Zhongmin Liu. The production of light olefins by catalytic cracking of the microalga Isochrysis zhanjiangensis over a modified ZSM-5 catalyst[J]. Chinese Journal of Catalysis, 2014, 35(5): 684-691.

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改性ZSM-5分子筛催化裂解湛江等鞭金藻制取低碳烯烃

The production of light olefins by catalytic cracking of the microalga Isochrysis zhanjiangensis over a modified ZSM-5 catalyst

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