Reforming hydrocarbons using transition metal carbide catalyst a

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Reforming

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

208135, 208136, 585420, C10G 3506

Patent

active

053840275

ABSTRACT:
A process for reforming a hydrocarbon which comprises treating the hydrocarbon, while at elevated temperature, with a transition metal catalyst while in the presence of an effective amount of gaseous oxygen to improve the selectivity of the catalyst to aromatic formation and reduce the hydrogenolysis activity of the catalyst. The transition metal may be tungsten, and the transition metal catalyst may be supported on an oxidic support, optionally with a ceramic passivation layer lying between the support and the transition metal catalyst. The amount of gaseous oxygen used may be from about 50 ppm to about 5000 ppm, based upon the weight of the hydrocarbon.

REFERENCES:
patent: 2661320 (1953-12-01), Beckberger et al.
patent: 2661380 (1953-12-01), Orkin
patent: 2661383 (1953-12-01), Beckberger et al.
patent: 2718535 (1955-09-01), McKinley et al.
patent: 2755228 (1956-07-01), Anhorn et al.
patent: 2864875 (1958-12-01), McKinley et al.
patent: 4522708 (1985-06-01), Leclercq et al.
patent: 5139987 (1992-08-01), Ledoux et al.
patent: 5196389 (1993-03-01), Dubots
patent: 5200060 (1993-04-01), Sajkowski et al.
The Chemistry of Catalytic Hydrocarbon Conversions by H. Pines (Academic Press, 1981) pp. 102-105.
Iglesia et al., "Bifunctional Reactions of Alkanes on Tungsten Carbides Modified by Chemisorbed Oxygens", Journal of Catalysis, 131, pp. 523-544, (1991).
Ribeiro et al., "Reactions of Neopentane, Methylcyclohexane, and 3,3-Dimethy Pentane on Tungsten Carbides . . . ", Journal of Catalysis, 130, pp. 86-105, (1991).
Ribeiro et al., "Catalytic Reactions of n-Alkanes on .beta.-W.sub.2 C and WC . . . ", Journal of Catalysis, pp. 498-513, (1991).
Ledoux et al., "Compared Activities of Platinum and High Specific Surface Area MB.sub.2 C and WC Catalysts for Reforming Reactions", Journal of Catalysis, 134, pp. 383-393 (1992).
Oyama, "Preparation and Catalytic Properties of Transition Metal Carbides and Nitrides", Catalysis Today, 15, (1992), pp. 179-200.
Pham-Hud et al., "Reactions of 2-and 3-Methyl Pentane Methylcyclo Pentane Cyclopentane, and Cyclohexane on Activated MO.sub.2 C", Journal of Catalysis, 143, pp. 249-261 (1993).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Reforming hydrocarbons using transition metal carbide catalyst a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reforming hydrocarbons using transition metal carbide catalyst a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reforming hydrocarbons using transition metal carbide catalyst a will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1466316

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.