Abstract: A method for the epoxidation of an olefin comprising reacting a feed gas composition containing an olefin, oxygen, and a halocarbon moderator having a first moderator concentration M1 in the presence of an epoxidation catalyst at a first temperature T1; increasing the first temperature to a second temperature T2; and increasing the first moderator concentration to a second moderator concentration M2, wherein the second moderator concentration is defined by: M2=M1(1+r)T2?T1 wherein the temperature has the units of degrees Celsius, and r is a constant factor which is in the range of from 0.001% to 100%.

Abstract: A method for the epoxidation of an olefin comprising reacting a feed gas composition containing an olefin, oxygen, and a halocarbon moderator having a first moderator concentration M1 in the presence of an epoxidation catalyst at a first temperature T1; increasing the first temperature to a second temperature T2; and increasing the first moderator concentration to a second moderator concentration M2, wherein the second moderator concentration is defined by: M2=M1(1+r)T2?T1 wherein the temperature has the units of degrees Celsius, and r is a constant factor which is in the range of from 0.001% to 100%.

Abstract: The invention describes a process for producing a catalyst useful for the epoxidation of an olefin. More particularly, the invention pertains to a catalyst useful for the oxidation of ethylene to ethylene oxide. The catalyst comprises a solid support such as alpha-alumina, which has a catalytically effective amount of silver or a silver-containing compound, and a promoting amount of rhenium or a rhenium-containing compound, and a promoting amount of one or more alkali metals or alkali metal-containing compounds on the surface of the support. To produce a catalyst precursor. The catalyst precursor is contacted with an atmosphere comprising oxygen and steam, which atmosphere is substantially absent of an olefin, to hasten the attainment of peak selectivity in the process of oxidation of ethylene to ethylene oxide.

Abstract: The invention relates to the aqua-thermal treatment of an ethylene oxide catalyst carrier and to a silver catalyst prepared therefrom.

Abstract: A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of critical amounts of an alkali metal component and a sulfur component, the catalyst being essentially free of rhenium and transition metal components; optionally the catalyst contains a fluorine component.

Abstract: The invention relates to the aqua-thermal treatment of an ethylene oxide catalyst carrier and to a silver catalyst prepared therefrom.

Abstract: A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of critical amounts of an alkali metal component and a sulfur component, the catalyst being essentially free of rhenium and transition metal components; optionally the catalyst contains a fluorine component.

Abstract: The present invention involves conversion of methanol, a relatively abundant and inexpensive, yet low energy fuel, to carbon monoxide and hydrogen, which have higher heats of combustion. The catalytic dehydrogenation of methanol is an endothermic process.heat+CH.sub.3 OH.revreaction.CO+2H.sub.2 (1)A new and efficient catalyst technology which promotes high methanol conversion and excellent selectivity for CO and H.sub.2 in this reaction would have several practical applications. Results clearly demonstrate that it is feasible to employ SMSC technology in the development of catalyst systems with commercial applications for methanol dehydrogenation.