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In vapour phase contact processes, the vapours formed during cracking are brought into contact with the catalyst. The use of solid catalysts such as silica-alumina, ZSM-5, zeolites, and mesoporous materials for these purposes are all possible and have been tested. The reactor design is very similar to the FCC-unit shown in Fig. 29.
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The solubility of naphthalene by various oils has led some engineers to put in naphthalene washers, in which gas is brought into contact with a heavy tar oil or certain fractions distilled from it, the latter being previously mixed with some volatile hydrocarbon to replace in the gas those illuminating vapours which the oil dissolves out; and by fractional distillation of the washing oil …
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A number of ATEX-approved CRN pumps are available, according to the locality, hazard and likelihood of a dangerous situation occurring. ATEX-approved pumps are for use in potentially explosive atmospheres. Explosive atmospheres consist of air and combustible matter such as gases, vapours, mist or dusts in which the explosion spreads after ignition.
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HSBC is a multinational banking and financial services corporation. The company serves over 65 countries worldwide and it is the largest bank in Europe, as well as one of the largest globally. ... Pall Mall, Kent and Dunhill, and its reduced-risk products include vapours and oral pouches from Vype and Glo. ... Its number of consumers grew from ...
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GASTEC detector tubes indicate concentrations directly by way of a calibrated scale printed directly on the tubes. At GASTEC, we endeavour to achieve highest quality detector tubes for analysing airborne gases/vapours, as well as pollutants in soil and water through our advanced state-of-the-art research and development. Through our efforts we have acquired a solid …
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Updated: 6 hours ago
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