Separation of lower olefins by chemical vapor deposited zeolite A

Journal Article · Tue Feb 01 04:00:00 EST 1994 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00026a030· OSTI ID:7046374

Niwa, Miki ^[1]; Yamazaki, Kiyoshi; Murakami, Yuichi ^[2]

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1. Tottori Univ. (Japan). Dept. of Materials Science
2. Nagoya Univ. (Japan). Dept. of Applied Chemistry

The NaCaA zeolite was modified by a method of chemical vapor deposition of silicon alkoxide; the resulting silica overlayer on the external enclosed the pore-opening size precisely. On the basis of the measurements of rate of adsorption and chromatographic response, it was found that the rate of adsorption of lower olefins (C[sub 2]H[sub 4], C[sub 3]H[sub 6], and 1-C[sub 4]H[sub 8]) was suppressed by the modification with the equilibrium adsorption amount unchanged; the extent of suppression depended upon the length of the olefins and the amount of silica deposited. Lower olefins thus can be separated by choosing the extent of silica deposited.

• OSTI ID: 7046374
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 33:2; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
ADSORPTION
ALKENES
BUTENES
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COATINGS
DEPOSITION
ETHYLENE
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MICROSTRUCTURE
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PORE STRUCTURE
PROPYLENE
SILICA
SILICATE MINERALS
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SORPTIVE PROPERTIES
SURFACE COATING
SURFACE PROPERTIES
VAPOR DEPOSITED COATINGS
ZEOLITES