摘要:
The formation of carbon on metals exposed to hydrocarbons in a thermal cracking process is reduced by contacting such metals with an antifoulant selected from the group consisting of tin, a combination of tin and antimony, a combination of germanium and antimony, a combination of tin and germanium and a combination of tin, antimony and germanium.
摘要:
An intentionally produced low octane value alkylate is reformed in the presence of steam, and in the absence of added hydrogen, to produce a high octane value, olefinic reformate containing aromatics. The reformate, upon fractionation to remove hydrogen and methane and C.sub.3 and C.sub.4 hydrocarbons, which can be recycled, is subjected to solvent extraction to produce a raffinate which can be used as high octane gasoline and which contains olefins, and an extract which, upon fractionation to remove xylenes therefrom as usable product, and which now contains benzene and toluene, can be combined with said raffinate.
摘要:
The purity of organically polluted waters is improved by contacting with a zinc titanate catalyst under oxidizing conditions. In one embodiment, an aqueous stream containing oxidizable organic pollutants is subjected to oxidizing conditions in the presence of a metal promoted zinc titanate catalyst to improve the purity of the aqueous product. In a second embodiment, an aqueous stream containing oxidizable organic pollutants is subjected to oxidizing conditions in the presence of a metal promoted zinc titanate catalyst to convert the water to a potable aqueous product.
摘要:
A process is used to dehydrogenate organic compounds to a higher degree of unsaturation by contacting in a first step, the organic compound with a calcined zinc titanate catalyst. In the second step, the catalyst is contacted with oxygen essentially in the absence of the dehydrogenatable organic compound. The first and second steps are repeated sequentially.
摘要:
Alkenes and/or alkadienes are contacted with molecular oxygen and an oxidative dehydrogenation catalyst consisting essentially of phosphorus, vanadium, oxygen, and at least one promoter selected from the group consisting of iron, cobalt, nickel, and molybdenum to produce furan compounds.