Catalytic conversion of biomass pyrolysis-derived compounds with chemical liquid deposition (CLD) modified ZSM-5

Huiyan Zhang; Mengmeng Luo; Rui Xiao; Shanshan Shao; Baosheng Jin; Guomin Xiao; Ming Zhao; Junyu Liang

doi:10.1016/j.biortech.2013.12.085

Catalytic conversion of biomass pyrolysis-derived compounds with chemical liquid deposition (CLD) modified ZSM-5

Bioresour Technol. 2014 Mar:155:57-62. doi: 10.1016/j.biortech.2013.12.085. Epub 2013 Dec 27.

Authors

Huiyan Zhang¹, Mengmeng Luo¹, Rui Xiao², Shanshan Shao¹, Baosheng Jin¹, Guomin Xiao³, Ming Zhao⁴, Junyu Liang⁴

Affiliations

¹ Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China.
² Key Laboratory of Energy Thermal Conversion and Control, Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China. Electronic address: ruixiao@seu.edu.cn.
³ School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China.
⁴ Electric Power Research Institute, Yunnan Electric Power Test and Research Institute (Group), Kunming 650217, PR China.

PMID: 24413482
DOI: 10.1016/j.biortech.2013.12.085

Abstract

Chemical liquid deposition (CLD) with KH550, TEOS and methyl silicone oil as the modifiers was used to modify ZSM-5 and deposit its external acid sites. The characteristics of modified catalysts were tested by catalytic conversion of biomass pyrolysis-derived compounds. The effects of different modifying conditions (deposited amount, temperature, and time) on the product yields and selectivities were investigated. The results show KH550 modified ZSM-5 (deposited amount of 4%, temperature of 20°C and time of 6h) produced the maximum yields of aromatics (24.5%) and olefins (16.5%), which are much higher than that obtained with original ZSM-5 catalyst (18.8% aromatics and 9.8% olefins). The coke yield decreased from 44.1% with original ZSM-5 to 26.7% with KH550 modified ZSM-5. The selectivities of low-molecule-weight hydrocarbons (ethylene and benzene) decreased, while that of higher molecule-weight hydrocarbons (propylene, butylene, toluene, and naphthalene) increased comparing with original ZSM-5.

Keywords: Biomass; Chemical liquid deposition; Furan catalytic pyrolysis; Modified ZSM-5.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biofuels*
Biomass*
Catalysis
Hot Temperature
Hydrocarbons / isolation & purification*
Lignin / chemistry*
Surface Properties
Time Factors
Zeolites / chemistry*

Substances

Biofuels
Hydrocarbons
ZSM-5 zeolite
lignocellulose
Zeolites
Lignin