Catalytic activities and selectivities of complex metal oxides for hydrocracking of bituminous coal

Hattori, Hideshi; Yamaguchi, Tsutomu; Tanabe, Kozo; Yokoyama, Susumu; Umematsu, Junichi; Sanada, Yuzo

doi:10.1016/0378-3820(84)90035-3

Cited by 9 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One approach has been to change the surface properties of hematite particles either by treating a precipitated FeOOH with H 2 SO 4 or by precipitating FeOOH in the presence of the sulfate anion. 225,[235][236][237] After calcination, these catalysts are transformed to Fe 2 O 3 /SO 4 2À . The sulfate group is believed to be responsible for superacidity, and can also help to prevent sintering of the catalyst particles, which may relate to their enhanced activity.…”

Section: Dissolution Catalystsmentioning

confidence: 99%

Clean liquid fuels from direct coal liquefaction: chemistry, catalysis, technological status and challenges

Vasireddy

Morreale

Cugini

et al. 2011

Energy Environ. Sci.

345

209

View full text Add to dashboard Cite

Increased demand for liquid transportation fuels coupled with gradual depletion of oil reserves and volatile petroleum prices have recently renewed interest in coal-to-liquids (CTL) technologies. Large recoverable global coal reserves can provide liquid fuels and significantly reduce dependence on oil imports. Direct coal liquefaction (DCL) converts solid coal (H/C ratio z 0.8) to liquid fuels (H/C ratio z 2) by adding hydrogen at high temperature and pressures in the presence or absence of catalyst. This review provides a comprehensive literature survey of the coal structure, chemistry and catalysis involved in direct liquefaction of coal. This report also touches briefly on the historical development and current status of DCL technologies. Key issues, challenges involved in DCL process and directions for the future research are also addressed.

show abstract

Section: Dissolution Catalystsmentioning

confidence: 99%