Influence of reaction products on stability and activity of catalyst for alkylation of benzene by propylene
It has been of interest to study the timewise course of the process under conditions simulating a multisectional reaction zone, i.e., with increasing quantities of products from the interaction of benzene and propylene. The experiments were performed in a flow unit with a tubular reactor (catalyst charge 100 cm/sup 3/) at a temperature of 200-210/sup 0/C pressure 2.5 MPa, and feedstock space velocity 2 h/sup -1/. The decrease in propylene conversion with the passage of time was compensated by increasing the temperature to 280/sup 0/C. The catalyst was a cation-substituted Y zeolite (SiO/sub 2//Al/sub 2/O/sub 3/ = 4.4), molded without binder, with respective contents of Na/sub 2/O, Ln/sub 2/O/sub 3/, and CaO 0.57%, 15.8%, and 2.3% by weight. The starting materials were benzene in Grade kh.ch. (chemically pure) and propylene (purity 99.9% by weight) in a mole ratio from 7/1 to 8/1. In the course of these studies, isopropylbenzene and polyalkylbenzenes were added to the feed in various amounts. The composition of the liquid phase of the feed is shown.
- Research Organization:
- Groznyi Petroleum Scientific-Research Institute, USSR
- OSTI ID:
- 5904723
- Journal Information:
- Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Vol. 22:7-8; Other Information: Translated from Khimiya i Teknologiya Topliv i Masel; 22: No. 7, 20-22(Jul-Aug 1986)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BENZENE
ALKYLATION
HETEROGENEOUS CATALYSIS
ZEOLITES
CATALYTIC EFFECTS
ALKYLATING AGENTS
ALUMINIUM OXIDES
CALCIUM OXIDES
CERIUM OXIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
ISOMERIZATION
LANTHANUM OXIDES
PROPYLENE
SILICA
SODIUM OXIDES
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALKENES
ALUMINIUM COMPOUNDS
AROMATICS
CALCIUM COMPOUNDS
CATALYSIS
CERIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
LANTHANUM COMPOUNDS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
REACTION KINETICS
SILICON COMPOUNDS
SILICON OXIDES
SODIUM COMPOUNDS
YIELDS
020400* - Petroleum- Processing