By A. Crucq
In June 1984 the EEC fee proposed new criteria of permissible exhaust gasoline from motorcars to be brought in Europe; those criteria have been authorized through the Ministers of our surroundings twelve months later. because the keep an eye on of car pollutants is at the present usually a catalytic challenge, it used to be determined to carry a world Symposium at the topic, and an organizing committee composed of individuals engaged in catalytic study within the assorted Belgian Universities used to be constituted. This used to be the 1st Symposium of its type to be hung on a world point, and the standard and medical curiosity of the papers provided used to be unparalleled. it truly is deliberate to carry a follow-up Symposium in 2 to three years' time. the 1st a part of the booklet is a basic creation to the matter of car pollutants. the second one, correctly catalytic, half is dedicated to basic and utilized reports on pollutants keep an eye on, with emphasis on exhaust catalytic converters.
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Extra resources for Catalysis and Automotive Pollution Control
Mg/kg (DW) Flat. 360 ................ Excavated. 340 ----- Enbanked. 320 300 260 260 240 220 200 leo 160 140 120 100 60 60 40 20 ...... LEAD CONTAMINATION OF GRASSES. 24 1970; Impens et a1 1976; Davies, 1378). g. letttuce, spinach, cabbage, beans, peas and other vegetables) show a highly significant increase in surface coated lead, when growing near highways and therefore, are no more suitable for consumption, not even if 50 per cent of the deposited dust can be removed by an acid washing (see Table 5).
D. Saverlander's Verlag, Frankfurt/M. VANDENBOSSCHE, 1. and R IMPENS. 1976: Verslage over leefmilieu langs autowegen 1974-1976. Ministere des Travaux Publics, Bruxelles, 342 pp. This Page Intentionally Left Blank A. \. , Amsterdam - Printed in The Ne therl ands CATALYSIS IN MODERN PETROLEUM REFINING by J. GROOTJANS LABOFINA SA, Feluy, Belgium. ABSTRACT The progressive lead phase out in motorspirits, deeper conversion schemes on crudes of poorer quality and more stringent regulations on polluant emissions determine to a large extent the ongoing research in catalysis related to petroleum refining.
5 wt% on feed of isobutylene. Isobutylene is easily etherified with methanol into MTBE. 5% of the gasoline blend. 5 wt% on feed of tertiary amylenes. They are also readily etherified on cationic resins into TAME. The octane numbers for TAME are somewhat lower than for MTBE : RON = 112, MaN = 99. In blends one finds that part of the MTBE may be substituted by TAME without penalty on the blend octane numbers. 5% of the gasoline pool. - Heavy ethers: Processes are being proposed that aim to etherify the total light catalytic gasoline.