Iron sulfide catalysts for coal liquefaction prepared using a micellar technique

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie950694y· OSTI ID:376235

Chadha, A; Sharma, R K; Stinespring, C D; Dadyburjor, D B ^[1]

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1. West Virginia Univ., Morgantown, WV (United States). Dept. of Chemical Engineering

The authors have recently synthesized nanometer-size iron sulfide catalysts using a reverse micellar system. These particles are 40--70 nm in size and were used in laboratory-scale coal-liquefaction experiments. The catalyst particles were impregnated in situ on coal particles. The catalyst loading was 1.67% with respect to coal. The liquefaction run was carried out at 400 C for 30 min, at a pressure of 1,000 psia H{sub 2}(g) measured at ambient temperature (corresponding to approximately 2,000 psia at reaction conditions), tine absence of any solvent or hydrogen donor. The total conversion, as well as the yields of asphaltene plus preasphaltene and oil plus gas, increased after the run, relative to a thermal (noncatalytic) run. The activity of the micellar catalyst is slightly less than that of a nonmicellar catalyst. However, a slightly higher selectivity to oil plus gas is observed with the micellar catalyst.

• OSTI ID: 376235
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 9 Vol. 35; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ASPHALTENES
BENCH-SCALE EXPERIMENTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
COAL GAS
COAL LIQUEFACTION
COAL LIQUIDS
IRON SULFIDES
MICELLAR SYSTEMS
PARTICLE SIZE