Methanol dehydration to dimethyl ether over strong-acid-modified diatomite catalysts

被引：8
|
作者：
Pranee, Watcharakorn [1 ]
Neramittagapong, Sutasinee [1 ]
Assawasaengrat, Pornsawan [2 ]
Neramittagapong, Arthit [1 ]
机构：
[1] Khon Kaen Univ, Dept Chem Engn, Fac Engn, 123 Moo 16 Mittapap Rd, Khon Kaen 40002, Thailand
[2] King Mongkuts Inst Technol Ladkrabang, Dept Chem Engn, Fac Engn, Bangkok, Thailand
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2016年 / 38卷 / 21期
关键词：
Acid catalyst; alternative energy; dimethyl ether; diatomite; methanol; ZEOLITES;
D O I：
10.1080/15567036.2015.1132285
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Dimethyl ether synthesis via methanol dehydration over strong-acid-modified (with sulfuric, hydrochloric and nitric acid) diatomite (DM) catalysts was conducted in a fixed-bed reactor with elevated temperature reaction from 250 to 350 degrees C. The modified DM catalysts were characterized by using X-ray diffraction, scanning electron microscopy, fourier transform infrared spectroscopy, fourier transform Raman spectroscopy, temperature-programmed desorption of ammonia, temperature-programmed of carbon dioxide, thermal gravimetric analysis, and solid-state 27Aluminum magic angle spinning/nuclear magnetic resonance spectroscopy. It was found that sulfuric-acid-modified DM catalyst yielded the highest DME selectivity (similar to 99%). It was also revealed that methanol conversion depended on Al ions. The methanol conversion increased with Al-(IV) but decreased with Al-(V) and Al-(VI).
引用
收藏
页码：3109 / 3115
页数：7
相关论文
共 50 条
  • [21] The Dehydration of Methanol to Dimethyl Ether over a Novel Slurry Catalyst
    Liu, L.
    Huang, W.
    Gao, Z.
    Yin, L.
    ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2010, 32 (15) : 1379 - 1387
  • [22] Catalytic Dehydration of Methanol to Dimethyl Ether Catalyzed by Aluminum Phosphate Catalysts
    Yaripour, F.
    Mollavali, A.
    Jam, Sh. Mohammadi
    Atashi, H.
    ENERGY & FUELS, 2009, 23 (3-4) : 1896 - 1900
  • [23] Supported WOx-based catalysts for methanol dehydration to dimethyl ether
    Ladera, R.
    Finocchio, E.
    Rojas, S.
    Busca, G.
    Fierro, J. L. G.
    Ojeda, M.
    FUEL, 2013, 113 : 1 - 9
  • [24] Catalytic dehydration of methanol to dimethyl ether (DME) over Pd/Cab-O-Sil catalysts
    Appl Catal A Gen, 2 (303):
  • [25] Catalytic dehydration of methanol to dimethyl ether (DME) over Pd/Cab-O-Sil catalysts
    Xu, MT
    Goodman, DW
    Bhattacharyya, A
    APPLIED CATALYSIS A-GENERAL, 1997, 149 (02) : 303 - 309
  • [26] Dehydration of methanol to dimethyl ether over ZSM-5 zeolite
    Jiang, S
    Hwang, JS
    Jin, TH
    Cai, TX
    Cho, W
    Baek, YS
    Park, SE
    BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2004, 25 (02): : 185 - 189
  • [27] Synthesis of dimethyl ether (DME) from methanol over solid-acid catalysts
    Xu, MT
    Lunsford, JH
    Goodman, DW
    Bhattacharyya, A
    APPLIED CATALYSIS A-GENERAL, 1997, 149 (02) : 289 - 301
  • [28] Catalytic dehydration of methanol to dimethyl ether over modified γ-Al2O3 catalyst
    Liu, Dianhua
    Yao, Chunfeng
    Zhang, Jianqiang
    Fang, Dingye
    Chen, Dasheng
    FUEL, 2011, 90 (05) : 1738 - 1742
  • [29] MCM-41-Type Mesoporous Silicas Modified with Alumina in the Role of Catalysts for Methanol to Dimethyl Ether Dehydration
    Szczepanik, Natalia
    Kowalczyk, Andrzej
    Piwowarska, Zofia
    Chmielarz, Lucjan
    CATALYSTS, 2022, 12 (11)
  • [30] Surface acidity and the dehydration of methanol to dimethyl ether
    Fu, YC
    Hong, T
    Chen, JP
    Auroux, A
    Shen, JY
    THERMOCHIMICA ACTA, 2005, 434 (1-2) : 22 - 26
12345