Abstract

Alma Massenova, Maxat Kalykberdiyev, Abzal Ussenov, Alexandr Sass, Nail Kenzin, Erlan Kanatbayev and Amankeldi Baiken

DOI : http://dx.doi.org/10.13005/ojc/350143

The work is devoted to the catalytic hydrodearomatization of gasoline fractions to reduce the content of benzene and polycyclic aromatic hydrocarbons and the catalytic oxidation of carbon monoxide in motor vehicle exhaust gases. At hydrodearomatization of gasoline fractions of LLP "Atyrau Refinery" on 0.2% Rh-Pt/Al₂O₃ bimetallic catalyst, the benzene content of the Stable catalysate LG fraction decreased from 3.23 to 0-0.03% and the content of aromatic hydrocarbons decreased from 55.04 to 28.40% and benzene was completely removed of the fraction Straight-run gasoline AVT with the decrease of aromatic hydrocarbons from 9.93 to 5.04%. CO oxidation with 100% conversion over metal block Pt-Co/Al₂O₃ catalysts begins already at 100°C, the optimal volume rate for the oxidative conversion of CO is 80000-100000 h^–1. Tests on a pilot plant showed complete removal of monoxide from the exhaust gases of internal combustion engine.

Aromatic hydrocarbons; Benzene; Carbon Oxide; Exhaust gases; Hydrodearomatization; Oxidation

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