Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – From nonhydrocarbon feed
Reexamination Certificate
2006-10-03
2006-10-03
Caidarola, Glenn (Department: 1764)
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
From nonhydrocarbon feed
C585S639000, C585S501000, C585S956000
Reexamination Certificate
active
07115791
ABSTRACT:
A process for controlling an oxygenates to olefin reactor is disclosed which comprises: contacting oxygenate-containing feedstock, e.g., methanol, in a reaction zone in the presence of a molecular sieve oxygenate to olefins conversion catalyst under conditions sufficient to provide an olefins-containing effluent containing alkyl alcohol and dialkyl ether, e.g., methanol and dimethyl ether; analyzing a single gas phase of the effluent determine alkyl alcohol concentration and dialkyl ether concentration; and adjusting reactor conditions, e.g., WHSV, as a function of alkyl alcohol concentration and dialkyl ether concentration, as necessary to provide a substantially consistent effluent composition. A corresponding apparatus for carrying out the process is also provided.
REFERENCES:
patent: 4076796 (1978-02-01), Reh et al.
patent: 5157181 (1992-10-01), Stine et al.
patent: 5407830 (1995-04-01), Altman et al.
patent: 5470482 (1995-11-01), Holt
patent: 5862060 (1999-01-01), Murray, Jr.
patent: 5952538 (1999-09-01), Vaughn et al.
patent: 6023005 (2000-02-01), Lattner et al.
patent: 6103934 (2000-08-01), Hallinan et al.
patent: 6137022 (2000-10-01), Kuechler et al.
patent: 6162644 (2000-12-01), Choi et al.
patent: 6166282 (2000-12-01), Miller
patent: 6228650 (2001-05-01), Moore et al.
patent: 6287522 (2001-09-01), Lomas
patent: 6420595 (2002-07-01), Hallinan et al.
patent: 157 181 (1985-10-01), None
patent: 490 742 (1992-06-01), None
Qin et al., “Quantitative Analysis of Process Streams by On-Line FT-IR Spectrometry.”Anal. Chem. vol. 69, pp. 1942-1945 (1997).
Fluidization and “Fluid-Particle Systems,” Frederick A. Zenz et al., pp. 48-59, 1960.
“Kinetic Modeling of Methanol Transformation into Olefins on a SAPO-34 Catalyst,” Ana G. Gayubo et al., Ind. Eng. Chem. Res., vol. 39, pp. 292-300, 2000.
Coute Nicolas P.
Kabin Jeffrey Alan
Vaughn Stephen N.
Bullock In Suk
Caidarola Glenn
ExxonMobil Chemical Patents Inc.
LandOfFree
Method and apparatus for controlling effluent composition in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for controlling effluent composition in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling effluent composition in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3681129