Polygas spells relief from alkylation ills
Tight supplies and soaring prices of isobutane (for olefin alkylation), are causing renewed interest in the olefin ''polymerization'' (i.e., dimerization), route to high-octane gasoline-blending components. Modern polymerization processes, intended to supplement rather than replace alkylation offer considerable energy and capital savings, compared with alkylation-only schemes. In addition to the Institut Francais du Petrole's Dimersol ''polymerization'' tecnique which is already being used or will be used by 1981 in at least five U.S. refineries, with six more units in the planning stage, a low-cost process to ''polymerize'' excess refinery olefins, developed by International Energy Consultants Inc., is nearing commercialization. A third route to process C/sub 3//C/sub 4/ refinery streams with high conversion rates has been proposed by UOP Inc. The low motor octane number (MON) of the product gasoline (approx. 13 numbers lower than a typical alkylate), was recently confirmed in Total Petroleum Inc.'s studies, but Good Hope Refineries Inc. plans to increase its polymer gasoline MON by adding methyl tert.-butyl ether.
- OSTI ID:
- 6482293
- Journal Information:
- Chem. Eng. (N.Y.); (United States), Journal Name: Chem. Eng. (N.Y.); (United States) Vol. 87:12; ISSN CHEEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
023000 -- Petroleum-- Properties & Composition
ADDITIVES
ALKENES
ALKYLATION
ANTIKNOCK RATINGS
CHEMICAL PLANTS
CHEMICAL REACTIONS
DIMERIZATION
FUEL ADDITIVES
FUELS
GASOLINE
GASOLINE PLANTS
HYDROCARBONS
INDUSTRIAL PLANTS
LIQUID FUELS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROLEUM PRODUCTS
PETROLEUM REFINERIES
POLYMERIZATION
POLYMERS
POLYOLEFINS
PRODUCTION