scholarly journals Support and Catalyst for the alkylation of benzene by ethylene process

2016 ◽  
Vol 1 (1) ◽  
pp. 57
Author(s):  
R.A. Shkrabina ◽  
Z.R. Ismagilov ◽  
N.A. Koryabkina ◽  
Yu.K. Vorobiev
Keyword(s):  
Porous Structure ◽  
Alumina Support ◽  
Industrial Installation ◽  
Benzene Alkylation ◽  
Alkylation Of Benzene ◽  
Spherical Alumina ◽  
Alkylation Catalyst

<p>A method for preparation of a spherical alumina support with preset porous structure for a catalyst of benzene alkylation with ethylene has been developed. The process of the support manufacture has been adjusted in a pilot installation, and an industrial installation for production of alumina support for the alkylation catalyst has been designed and built at the Shevchenko Plastics Plant (Aktau, Kazakhstan).</p>

scholarly journals HYDROIZOMERIZATION OF BENZENE-CONTAINING GASOLINE FRACTIONS – A BASE OF MODERN TECHNOLOGIES FOR ECOLOGICALLY CLEAN MOTOR FUELS OBTAINING

2019 ◽  
Vol 62 (1-2) ◽  
pp. 117-123
Author(s):  
E.D. Fedorova ◽  
A.V. Lavrenov ◽  
E.A. Buluchevskiy ◽  
E.N. Bogdanets
Keyword(s):  
Environmentally Friendly ◽  
Benzene Alkylation ◽  
Advantages And Disadvantages ◽  
Patent Information ◽  
Motor Fuels ◽  
Catalytic Processing ◽  
Alkylation Of Benzene ◽  
Scientific Technical ◽  
Modern Technologies

The review presents an analysis of scientific, technical and patent information on the hydroisomerization of benzene-containing gasoline fractions, as a way of obtaining components of environmentally friendly highoctane components of motor fuels. The advantages and disadvantages of the principal methods of catalytic processing of benzene-containing fractions, such as hydrogenation of benzene, alkylation of benzene with olefins, are considered. Particular attention is paid to promising catalysts and technologies of hydroisomerization of benzene-containing fractions.

scholarly journals Alkylation of Benzene with Technical Fraction Propylene - Propane Over Modified B-(Al)-HZSM-5 Catalysts

2019 ◽  
Vol 70 (8) ◽  
pp. 2753-2758 ◽  
Author(s):  
Iuliean Vasile Asaftei ◽  
Maria Ignat ◽  
Catalin Neculai Lungu ◽  
Ion Sandu ◽  
Elvira Mahu
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Benzene Alkylation ◽  
Low Level ◽  
Alkylation Of Benzene ◽  
Technical Mixture ◽  
Competing Reactions

Benzene alkylation with propylene - propane technical mixture over B-(Al)-HZSM-5 zeolite, as solid acid catalyst has been studied. It was found that izopropylbenzene (IPB) formation associate with a low level of byproducts, e.g., n-propylbenzene (NPB) and di-izopropylbenzenes (DIPB) as result of the inherent multiple competing reactions. Under the specific conditions in the alkylation of benzene with propylene -propane mixture, the maxim yields of IPB (% wt.) and the IPB selectivity based on benzene reaction (wt.%) were 86, 87 and 87.0 %.

PAPER PHYSICS. The web structure in relation to the furnish composition and shoe press pulse profiles during wet pressing

2012 ◽  
Vol 27 (4) ◽  
pp. 798-805 ◽  
Author(s):  
Collin Hii ◽  
Øyvind W. Gregersen ◽  
Gary Chinga-Carrasco ◽  
Øyvind Eriksen ◽  
Kai Toven
Keyword(s):  
Porous Structure ◽  
Peak Pressure ◽  
Pulse Length ◽  
Pressure Profile ◽  
Steam Consumption ◽  
Web Structure ◽  
Wet Pressing ◽  
Solids Content ◽  
In The Beginning ◽  
The Web

Abstract This study shows that wet-pressing TMP and DIP with a shoe press pulse may yield similar afterpress solids, provided that an adequate shoe pulse length with similar pressure profile is applied. A wet web with more porous structure in the sheet dewatering (felt) layer seems to contribute to the increased dewatering during wet pressing. In addition, a shoe press pulse with high peak pressure at the end yields higher solids content after wet-pressing and higher bulk compared to a pulse with a peak pressure in the beginning. The increased dewatering during wet-pressing implies a reduction of steam consumption in the dryer.

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