摘要:
A process for separating a gaseous alkene mixture into components thereof which comprises contacting the gaseous alkene mixture with a cuprous complex of the formula [Cu(facac)].sub.x L.sub.y where facac is a fluorinated acetylacetonate and L is a stabilizing agent in an organic solvent wherein L is displaced by alkene. Cuprous complexes containing alkene can then be separated provided that the separation factor between alkene complex to be separated and other alkene complexes is at least about 1.05.
摘要:
Carbon monoxide is removed from feedstreams by a process which comprises contacting the feedstream with a solution of a cuprous fluorinated acetylacetonate in an organic solvent containing a stabilizing agent to remove CO by forming a first cuprous complex, decomposing the first cuprous complex whereby the stabilizing agent which replaces CO in the first cuprous complex to form a second cuprous complex, and separating the displaced CO. The formation of the second cuprous complex avoids any deposition of copper metal upon heating.
摘要:
Alkenes, alkynes or mixtures thereof are removed from feedstreams by a process which comprises contacting the feedstream with a solution of a cuprous fluorinated acetylacetone in an organic solvent containing stabilizing agent to remove alkene, alkyne or mixture thereof by forming a first cuprous complex, decomposing the first cuprous complex whereby stabilizing agent replaces alkene or alkyne in the first cuprous complex to form a second cuprous complex, and separating the displaced component. The formation of the second cuprous complex avoids any deposition of copper metal upon heating.
摘要:
The present invention relates to a process for desulfurizing bitumen and other heavy oils such as low API gravity, high viscosity crudes, tar sands bitumen, or shale oils with alkali metal compounds under conditions to promote in-situ regeneration of the alkali metal compounds. The present invention employs the use of superheated water and hydrogen under conditions to improve the desulfurization and alkali metal hydroxide regeneration kinetics at sub-critical temperatures.
摘要:
Basically, the present invention is predicated on the discovery that zeolites that have a high silica to alumina ratio, e.g., a ratio of 20 and above, pore diameters of greater than about 5.0.ANG., and which have substantially no active acid sites, i.e., zeolites which are non-reactive toward olefin isomerization and oligomerization, are especially useful in substantially separating linear olefins and paraffins from hydrocarbon mixtures containing at least linear and branched aliphatic hydrocarbons and optionally containing aromatic and other hydrocarbons.
摘要:
Disclosed is a process for removing acid gases from gaseous streams by contacting the stream with an aqueous scrubbing solution containing a heterocyclic nitrogen compound comprised of either a five-- or six--membered ring having a pKa no greater than about 8. Imidazole is a preferred heterocyclic nitrogen compound.
摘要:
The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a severely sterically hindered secondary aminoether alcohol having a cumulative .sup.- -E.sub.s value (Taft's steric hindrance constant) greater than about 1.75 whereby H.sub.2 S is selectively absorbed from the mixture.
摘要:
The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a di-secondary aminoether wherein each amino group has a severely sterically hindered secondary amino moiety whereby H.sub.2 S is selectively absorbed from the mixture.
摘要:
The selective removal of H.sub.2 S gas from a normally gaseous mixture containing H.sub.2 S and CO.sub.2 is accomplished by contacting the gaseous mixture with an absorbent solution comprising a diaminoether wherein at least one amino group is a tertiary amine whereby H.sub.2 S is selectively absorbed from the mixture.
摘要:
Carbon dioxide containing acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an aqueous amine solution, wherein the amine consists of at least about 50 mol % of a sterically hindered amino alcohol and at least about 10 mol % of a tertiary amino alcohol, wherein said sterically hindered amino alcohol contains at least one secondary amino group which is part of a ring and is attached to either a secondary or tertiary carbon atom or a primary amino group attached to a tertiary carbon atom. The coaction of the sterically hindered amino alcohol and the tertiary amino alcohol provide an increase in the amount of carbon dioxide containing acidic gases absorbed compared to the use of the sterically hindered amines alone and lowers the heat of reaction.