Dehydrogenation reactions in narrow reaction chambers and...

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By dehydrogenation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C585S654000, C585S920000, C585S925000

Reexamination Certificate

active

10408744

ABSTRACT:
Methods of dehydrogenating hydrocarbons to yield unsaturated compounds are described. Reactor configurations useful for dehydrogenation are also described. Hydrocarbons can dehydrogenationed, for relatively long periods of time-on-stream, in a reaction chamber having a dimension of 2 mm or less to produce H2and an olefin. Techniques have been developed that reduce coke and allow stable, relatively long-term operation in small reactors.

REFERENCES:
patent: 4739124 (1988-04-01), Ward
patent: 4760210 (1988-07-01), Sweeney
patent: 4940826 (1990-07-01), Font Freide et al.
patent: 5254788 (1993-10-01), Gartside et al.
patent: 5811062 (1998-09-01), Wegeng et al.
patent: 5935489 (1999-08-01), Hershkowitz et al.
patent: 5997826 (1999-12-01), Lodeng et al.
patent: 6117578 (2000-09-01), Lesieur
patent: 6166283 (2000-12-01), Bharadwaj
patent: 6190624 (2001-02-01), Romatier
patent: 6200536 (2001-03-01), Tonkovich et al.
patent: 6274113 (2001-08-01), Heyse et al.
patent: 6315977 (2001-11-01), Cantacuzene
patent: 6365543 (2002-04-01), Schmidt et al.
patent: 6488838 (2002-12-01), Tonkovich et al.
patent: 6515146 (2003-02-01), Perregaard et al.
patent: 6540975 (2003-04-01), Tonkovich et al.
patent: 6566573 (2003-05-01), Bharadwaj
patent: 6709640 (2004-03-01), Romatier et al.
patent: 6756340 (2004-06-01), Voskoboynikov et al.
patent: 6756515 (2004-06-01), Rende et al.
patent: 6800044 (2004-10-01), Inamura
patent: 2003/0007904 (2003-01-01), Tonkovich et al.
patent: 2004/0034266 (2004-02-01), Brophy et al.
patent: 2004/0220434 (2004-11-01), Brophy et al.
patent: 0 308 976 (1989-03-01), None
patent: WO 01/54807 (2001-08-01), None
patent: WO 01/54807 (2001-08-01), None
patent: WO 01/70650 (2001-09-01), None
patent: WO 02/064248 (2002-08-01), None
patent: WO 2004/016347 (2004-02-01), None
patent: WO 2004/028685 (2004-04-01), None
PCT International Search Report, PCT/US2004/010508, mailed Sep. 28, 2004.
Ryu et al., “Catalytic combustion of methane over supported bimetallic Pd catalysts: Effects of Ru or Rh addition,” Catalysis Today 47 pp. 141-147 (1999).
PCT International Search Report, PCT/US03/16210, mailed Jan. 3, 2004.
Bhasin et al., “Dehydrogenation and oxydehydrogenation of paraffins to olefins,” Applied Catalysts A: 221 pp. 397-419 (2001).
Kursawe et al., “Comparison of Ag/Al- and Ag/A12O3 Catalytic Surfaces for the Partial Oxidation of Ethene in Microchannel Reactors,” in IMRET 5: Proceedings of the 5th Intl. Conf. On Microreaction Technology pp. 240-251 (2001).
Walter et al., “Microchannel Reaction Oxidation of Isoprene,” in IMRET 5: Proceedings of the 5th Intl. Conf. On Microreaction Technology pp. 387-390 (2001).
Claus et al., “Miniaturizatoin of screening devices for the combinatorial development of heterogensous catalysts,” Catalysis Today, 67, pp. 319-339 (2001).
Jones et al., “Dehydrogenation of cyclohexane to benzene in microreactors,” in Microfluidic Devices and Systems II, pp. 160-168 (1999).
Beretta et al., “Production of olefins via oxidative dehydrogenation of light paraffins at short contact times,” Catalysis Today, 64, pp. 103-111 (2001).
Zhou et al., “Oxidative dehydrogenation of propane over mesoporous HMS silica supported vanadia,” Catalyst Letters, 75 pp. 107-112 (2001).
Steinfeldt et al., “Comparative studies of the oxidative dehydrogenation of propane in microchannels reactor module and fixed-bed reactor,” Studies in Surface Science and Catalysis, pp. 185-190 (2001).
Cong et al., “Combinatorial discovery of oxidative dehydrogenation catalysts within the Mo-V-Nb-O system,” Proc. Natl. Acad. Sci. USA, 96, pp. 11077-11080 (1999).
Liu et al., “Discovery from combinatorial hetergeneous catalysis A new class of catalyst for ethane oxidative dehydrogenation at low temperatures,” Appl. Catal. A. 254, pp. 59-66 (2003).
Cui et al. “Fabrication of microreactors for hehydrogenation of cyclohexane to benzene,” in Sensors and Actuators B—Chemical 71 pp. 228-231 (2000) abstract only.
Wolfrath et al., “Novel Membrane Reactor with Filamentous Catalytic Bed for Propane Dehydrogenation,” 40, pp. 5234-5239 (2001).
Venkataraman et al., “Millisecond catalytic wall reactors: dehydrogention of ethane,” Chem. Eng. Sci., 57 pp. 2335-2343 (2002).
Euzen et al., “Deactivation of palladium catalyst in catalytic combustion of methane,” Catalysis Today, 47 pp. 19-27 (1999).
Kestenbaum et al., “Synthesis of ethylene oxide in a microreaction system,” in IMRET 3 Proceedings of the Third international Conf. on Microreaction Technology 207-212 (1999).

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

Dehydrogenation reactions in narrow reaction chambers and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dehydrogenation reactions in narrow reaction chambers and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dehydrogenation reactions in narrow reaction chambers and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3947034

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