|7034195||Method for the production of butadiene from n-butane|
The invention relates to a process for preparing butadiene from n-butane comprising the steps (A) providing an n-butane-containing feed gas stream, (B) feeding the n-butane-containing feed gas stream into a first d...
The present invention relates to new crystalline zeolite SSZ-36 prepared using a cyclic or polycyclic quaternary ammonium cation templating agent....
|5430219||Integrated process for producing olefins from methane-containing gas mixtures|
Disclosed is an integrated process for producing olefins by starting from methane containing gas mixture, which process essentially comprises the following steps: converting methane into higher hydrocarbons by oxidative coupling carried out in the presenc...
|5202517||Process for production of ethylene from ethane|
An apparatus and system for the dehydrogenation of ethane to produce ethylene and hydrogen through the use of a catalytic ceramic membrane having selective permeability, thus permitting separation of hydrogen from the reaction zone which causes further de...
|4891464||Control method for oxygen addition to oxidative reheat zone of hydrocarbon conversion process|
The rate at which an oxygen-containing gas stream is admixed with hydrocarbons and hydrogen upstream of a catalytic hydrogen oxidation zone is controlled on the basis of temperature differentials across the oxidation zone and an upstream catalytic dehydro...
|4504692||Process for producing 1,3-butadiene|
A process for producing 1,3-butadiene which comprises feeding a fraction comprising C4 -paraffins and C4 -olefins as the main components and being free from isobutene, 1,3-butadiene and C4 -acetylenes to a dehydrogenation ...
|4067921||Primary adjunct, continuous diene process|
Cn dienes are efficiently separated and produced from a Cn hydrocarbon feed stream, wherein n is 4-8. For example, 1,2- and 1,3-butadienes are separated and produced from a C4 hydrocarbon feed stream comprising C4
|4054613||Butadiene production and purification|
Butadiene is produced in relatively pure form by an oxidative dehydrogenation process in which a crude butadiene stream comprising butadiene, butylenes, vinyl acetylene and propylene is first extractively distilled with an extractant consisting of a sulfo...
|4053533||Oxidation of acetylenic impurities with copper manganite catalyst|
Acetylenic compounds are selectively removed from hydrocarbon mixtures containing same by oxidation in the presence of a solid copper-manganese-oxygen catalyst. In one embodiment, acetylenic compounds are selectively removed from a conjugated diene mixtur...
|4044067||Purification of unsaturated compounds|
Gaseous streams containing carbonyl compounds are reduced in carbonyl compounds by reacting a vapor phase with catalyst comprising as the major cation portion at least two metals of Periodic Table Groups 1b, 2b, 4b, 6b, 7b and 8. Reactor effluent from oxi...
|4021500||Oxidative dehydrogenation system|
An improved oxidative dehydrogenation system recycles separated water from the system to a catalytic oxidation reactor at which location organic compounds in the separated water are converted to materials such as carbon dioxide, carbon monoxide and water ...
|4009084||Process for the separation of diolefins from mixtures containing the same|
A multi-stage process for the solvent extraction of butadiene from a mixed feed stock containing butadiene, C-4 saturated and olefinic hydrocarbons and acetylenic compounds is disclosed wherein the feed stock is contacted with N-formyl morpholine and C-4 ...
|3943185||Diolefin production and purification|
A process for producing a stream of oxidatively dehydrogenated C4 hydrocarbons with substantially all of the oxygen and inert noncondensable gases removed comprising absorbing the C4 hydrocarbons in an absorber oil in a first zone; s...