skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Higher alcohols from synthesis gas using carbon-supported doped molybdenum-based catalysts

Abstract

A series of carbon-supported molybdenum-based catalysts was prepared by incipient wetness impregnation. The materials, when promoted with potassium and additionally with cobalt, were screened for the selective production of mixed higher-molecular weight alcohols from syngas. The effects of the catalyst preparation parameters (Mo precursor, Mo loading, doping levels of K and Co, and calcination) and of the reaction conditions (temperature and space velocity) were studied. The screening procedure consisted of ramping the temperature steadily from 200 to 400 C and back again. Adding K results in a maximum in the space-time yield (STY) of total alcohols and the ratio of higher alcohols to methanol. Increasing the reaction temperature results in a monotonic increase in the STY of hydrocarbons, a monotonic decrease in the selectivity toward alcohols, and a maximum in the STY of alcohols. Increasing the space velocity increases the STY and selectivity to alcohols while decreasing the STY of hydrocarbons. Increasing the space velocity also decreases the higher-alcohol fraction in the alcohol products.

Authors:
; ; ; ; ;  [1]
  1. West Virginia Univ., Morgantown, WV (United States). Dept. of Chemical Engineering
Publication Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
669982
DOE Contract Number:  
AC22-91PC91034
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 37; Journal Issue: 10; Other Information: PBD: Oct 1998
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; SYNTHESIS GAS; ALCOHOLS; MOLYBDENUM; CATALYTIC EFFECTS; POTASSIUM; COBALT; PROMOTERS; CHEMICAL PREPARATION; CATALYSTS; EXPERIMENTAL DATA

Citation Formats

Li, X, Feng, L, Liu, Z, Zhong, B, Dadyburjor, D B, and Kugler, E L. Higher alcohols from synthesis gas using carbon-supported doped molybdenum-based catalysts. United States: N. p., 1998. Web. doi:10.1021/ie980136u.
Li, X, Feng, L, Liu, Z, Zhong, B, Dadyburjor, D B, & Kugler, E L. Higher alcohols from synthesis gas using carbon-supported doped molybdenum-based catalysts. United States. doi:10.1021/ie980136u.
Li, X, Feng, L, Liu, Z, Zhong, B, Dadyburjor, D B, and Kugler, E L. Thu . "Higher alcohols from synthesis gas using carbon-supported doped molybdenum-based catalysts". United States. doi:10.1021/ie980136u.
@article{osti_669982,
title = {Higher alcohols from synthesis gas using carbon-supported doped molybdenum-based catalysts},
author = {Li, X and Feng, L and Liu, Z and Zhong, B and Dadyburjor, D B and Kugler, E L},
abstractNote = {A series of carbon-supported molybdenum-based catalysts was prepared by incipient wetness impregnation. The materials, when promoted with potassium and additionally with cobalt, were screened for the selective production of mixed higher-molecular weight alcohols from syngas. The effects of the catalyst preparation parameters (Mo precursor, Mo loading, doping levels of K and Co, and calcination) and of the reaction conditions (temperature and space velocity) were studied. The screening procedure consisted of ramping the temperature steadily from 200 to 400 C and back again. Adding K results in a maximum in the space-time yield (STY) of total alcohols and the ratio of higher alcohols to methanol. Increasing the reaction temperature results in a monotonic increase in the STY of hydrocarbons, a monotonic decrease in the selectivity toward alcohols, and a maximum in the STY of alcohols. Increasing the space velocity increases the STY and selectivity to alcohols while decreasing the STY of hydrocarbons. Increasing the space velocity also decreases the higher-alcohol fraction in the alcohol products.},
doi = {10.1021/ie980136u},
journal = {Industrial and Engineering Chemistry Research},
number = 10,
volume = 37,
place = {United States},
year = {1998},
month = {10}
}