Enhancing stability and coaromatization of n-hexane and methanol over [Zn,Cr]/HZSM-5

被引：20

作者：

Fan, Su-Bing ^{[1
]}

Wang, Dan ^{[1
]}

Li, Hai-Bo ^{[1
]}

Tuo, Jie ^{[1
]}

Zhang, Xiao-Lan ^{[1
]}

Gao, Xin-Hua ^{[1
]}

Zhao, Tian-Sheng ^{[1
]}

机构：

[1] Ningxia Univ, Coll Chem & Chem Engn, State Key Lab High Efficiency Utilizat Coal & Gre, Helanshan Rd 489, Yinchuan 750021, Ningxia, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2020年 / 599卷

关键词：

Aromatization; Stability; Cofeeding; Xylene; Acid distribution; ZSM-5; ZEOLITES; PROPANE AROMATIZATION; HYDROCARBONS; CONVERSION; CATALYST; CRACKING; BUTANE; HZSM-5; STATE; GAS;

D O I：

10.1016/j.apcata.2020.117602

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The catalytic performance and properties of [Zn,Cr]/HZSM-5 were determined using XRD, py-FTIR, ICP, TG, and XPS and compared with those of Zn/HZSM-5 and HZSM-5 for the aromatization of n-hexane. A distinct role of Cr in enhancing n-hexane conversion, aromatic yield, and stability was observed. The catalytic performance of [Zn,Cr]/HZSM-5 and the effects of feed ratio, reaction temperature, and contact time on the coaromatization of n-hexane and methanol were investigated. Methanol addition increased the xylene yield due to methylation. Cofeeding provided high stability arising from the slow carbon deposition rate. M a feed ratio (n-hexane/methanol) of 3:7, reaction temperature 450 degrees C, and WHSV 2 h(-1), the aromatic yield was 40.1%, with xylene selectivity of 40.4%.

引用

页数：9

共 50 条

[31] Study on furfural conversion into aromatics over Zn/HZSM-5 and Fe/HZSM-5 catalysts
Huynh Van Nam
Truong Thanh Tam
Van Dinh Son Tho
VIETNAM JOURNAL OF CHEMISTRY, 2020, 58 (05) : 602 - 609
[32] Methanol to Propylene over Nanosheets of HZSM-5 Zeolite
Zhang Shao-Long
Zhang Lan-Lan
Wang Wu-Gang
Min Yuan-Yuan
Tong, Ma
Yu, Song
Yan-Jun, Gong
Tao, Dou
ACTA PHYSICO-CHIMICA SINICA, 2014, 30 (03) : 535 - 543
[33] Methylation of benzene with methanol over HZSM-5 catalysts
Thanapongpipat, Atichart
Resasco, Daniel E.
Rirksomboon, Thirasak
Jongpatiwut, Siriporn
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2010, 239
[34] ON THE MECHANISM OF METHANOL CONVERSION TO HYDROCARBONS OVER HZSM-5
DESSAU, RM
LAPIERRE, RB
JOURNAL OF CATALYSIS, 1982, 78 (01) : 136 - 141
[35] A MECHANISM FOR METHANOL CONVERSION OVER HZSM-5 CATALYST
SAYED, MB
COONEY, RP
AUSTRALIAN JOURNAL OF CHEMISTRY, 1982, 35 (12) : 2483 - 2495
[36] Coupling Conversion of n-Hexane and CO over an HZSM-5 Zeolite: Tuning the H/C Balance and Achieving High Aromatic Selectivity
Wei, Changcheng
Yu, Qijun
Li, Jinzhe
Liu, Zhongmin
ACS CATALYSIS, 2020, 10 (07) : 4171 - 4180
[37] Analysis of n-hexane, 1-hexene, cyclohexane and cyclohexene catalytic cracking over HZSM-5 zeolites: effects of molecular structure
Ma, Zhenzhou
Hou, Xu
Chen, Bochong
Zhao, Liu
Yuan, Enxian
Cui, Tingting
REACTION CHEMISTRY & ENGINEERING, 2022, 7 (08) : 1762 - 1778
[38] BTX production by coaromatization of methane and propane over gallium oxide supported on mesoporous HZSM-5
Gim, Min Yeong
Song, Changyeol
Kim, Tae Hyeop
Song, Ji Hwan
Kim, Do Heui
Lee, Kwan-Young
Song, In Kyu
MOLECULAR CATALYSIS, 2017, 439 : 134 - 142
[39] Study of Coke Formation Mechanism on HZSM-5 Zeolite During Co-cracking of n-Hexane and Alcohols
He, Mu
Qie, Guanyu
Ali, Muhammad Faryad
Rizwan, Muhammad
Song, Yueqin
Zhou, Xiaolong
CATALYSIS LETTERS, 2024, 154 (07) : 3628 - 3644
[40] Ni-Mo-P/HZSM-5 non-noble catalysts for N-hexane isomerization.
Liu, XN
Li, YQ
Teng, BT
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2002, 223 : C13 - C13

← 1 2 3 4 5 →