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:
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:
The catalytic hydrodesulfurization and/or hydrodenitrogenation of organic compounds containing sulfur and/or nitrogen is carried out in the presence of a catalyst composition comprising zinc, titanium and at least one promoter selected from the group consisting of vanadium, chromium, cobalt, nickel, molybdenum, tungsten, rhenium, platinum, palladium, rhodium, ruthenium, and compounds thereof.
摘要:
Hydrogen sulfide is removed from a fluid stream by contacting the fluid stream which contains hydrogen sulfide with an absorbing composition comprising zinc, titanium and at least one promoter selected from the group consisting of vanadium, chromium, manganese, iron, cobalt, nickel, molybdenum, rhenium, and compounds thereof. If organic sulfur compounds are present in the fluid stream, the absorbing composition acts as a hydrodesulfurization catalyst to convert the sulfur in the organic sulfur compounds to hydrogen sulfide which is subsequently removed from the fluid stream by the absorbing composition. If olefin contaminants are present in the fluid stream, the absorbing composition acts as hydrogenation catalyst to hydrogenate the olefin contaminants to paraffins.
摘要:
Fine, pure, boehmite alumina crystallites are peptized, partially precipitated and phosphated, hardened, and dried to form a xerogel. The alumina can be impregnated with a chromium compound. The chromium-containing catalyst is activated by calcination. The activated catalyst can be used as a polymerization catalyst to polymerize mono-1-olefins.
摘要:
The catalytic hydrodenitrogenation of organic compounds containing sulfur and/or nitrogen is carried out in the presence of a catalyst composition comprising zinc titanate and at least one promoter selected from the group consisting of vanadium, chromium, cobalt, nickel, molybdenum, tungsten, rhenium, platinum, palladium, rhodium, ruthenium, and compounds thereof.
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:
Compositions comprising Fe/P/Group IIIA components are effective as catalysts in processes to convert organic compounds to compounds having a greater degree of unsaturation.
摘要翻译:包含Fe / P / IIIA族组分的组合物在将有机化合物转化为具有更高不饱和度的化合物的方法中是有效的。
摘要:
The removal of sulfur oxide (particularly sulfur dioxide) from a fluid stream, such as the tail gas from a sulfur process, is accomplished by contacting such fluid stream with a catalyst composition comprising zinc titanate and a promoter in the presence of a hydrogen donor.
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.