Potential of novel MCM-41 mesoporous molecular sieves as supports for catalytic conversion of coal-derived liquids into clean transportation fuels
The world will continue to rely on liquid fuels to fulfill the world's transportation energy needs. The demonstrated coal reserves in the world would last for 220 years at the world's annual consumption rate in 1996, while the known oil reserves as of 1997 would last a mere 40 years at the world's consumption rate of 1996. Thus the conversion of coal derived liquids into transportation fuels will be an area of long-term research. Heightened awareness and knowledge on the detrimental effects of automobile emissions and pollution from liquid fuels has led society to articulate its desire for improved air quality through stringent environmental regulations concerning fuel quality. These fuel quality standards are getting all the more stringent. A specific example is that of sulfur content in diesel; the now common sulfur content of 500 wppm is set to come down to 30 wppm. Coal derived liquids will, thus, require extensive processing and one important process is hydrotreating. Such fuel quality standards will make the task of hydrotreating at refineries technologically more challenging. One promising approach is to develop hydrotreating catalysts with steep increase in activity. In 1992 researchers at Mobil Technology Company invented a new class of molecular sieves with pore diameters of 2--15 nm, i.e., mesoporous in nature. These mesoporous molecular sieves have high surface area in uniform mesopores and are expected to be of importance in hydroprocessing liquids, which contain large heteroatom-containing molecules such as alkylated dibenzothiophenes. This paper reviews research initiatives, with some of the earliest ones emerging from this laboratory, in the use of mesoporous aluminosilicate-supported catalysts for hydrogenation and hydrotreating.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (US)
- OSTI ID:
- 20082310
- Resource Relation:
- Conference: Sixteenth Annual International Pittsburgh Coal Conference, Pittsburgh, PA (US), 10/11/1999--10/15/1999; Other Information: 1 CD-ROM. Operating systems required: Windows 95/98; Windows 3.X, Macintosh; PBD: 1999; Related Information: In: Sixteenth annual international Pittsburgh Coal Conference: Proceedings, [2000] pages.
- Country of Publication:
- United States
- Language:
- English
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