摘要:
A process for hydrogenating an unsaturated organic compound which comprises contacting the same with hydrogen in the presence of a catalyst composed of a support containing alumina and aluminum phosphate carrying nickel thereon.
摘要:
An alpha-olefin is oligomerized in the presence of a three-component catalyst comprising a particulate solid adsorbent having boron trifluoride and water adsorbed on the solid adsorbent. For example, 1-decene is oligomerized to a product predominating in the trimer and tetramer using silica as the solid adsorbent.
摘要:
An integrated in situ combustion process for recovering subterranean liquid and solid carbonaceous deposits in which the resulting flue gas of low heating value is combusted at substoichiometric conditions over two different oxidation catalysts in two combustion zones in series and is expanded in a gas turbine which drives the air compressor for injecting the combustion air into the underground carbonaceous deposit. One of the oxidation catalysts comprising platinum and at least one metal cocatalyst selected from Groups IIA and VIIB, Group VIII up through atomic No. 45, the lanthanides, chromium, zinc, silver, tin and antimony is provided to reduce the carbon monoxide in the combusted flue gas.
摘要:
A process for preparing alkyldimethylamines which comprises passing through a fixed bed, containing a copper catalyst and, optionally, chromium oxide, mounted on magnesium aluminate spinel support, dimethylamine and an alcohol or mixture of alcohols.
摘要:
1,3-Dicyanocyclopentane is prepared by the hydrocyanation of 2-cyanocyclopentene in the presence of a catalyst system comprising a zero valent nickel complex, free of carbon monoxide, and a promoting amount of a metal compound such as zinc chloride.
摘要:
A catalyst comprising (1) a subgroup of a certain class of nickel and/or cobalt-substituted semicrystalline aluminosilicates which are synthetic and which are predominantly ordered in two directions (laminar clay-like materials); (2) tungsten in the form of its oxide and/or sulfide; and (3) a crystalline zeolite which has an alpha value of at least 20, which is in particulate form, and which is dispersed through the layered aluminosilicate; and processes using this catalyst.
摘要:
A process for the conversion of gas oil to a naphtha pyrolysis feedstock and needle coke comprising thermally cracking the gas oil to produce a product comprising cracked naphtha and aromatic tar oil, delay coking said aromatic tar oil to produce needle coke and coker naphtha, and hydrotreating said cracked naphtha and said coker naphtha at a temperature at least 50.degree. F. (28.degree. C.) lower than the temperature in the thermal cracking and coking zones to avoid hydrocarcking reactions and to produce a hydrogenated naphtha containing at least 10 volume percent of cycloparaffins. Said hydrogenated naphtha is thereupon passed through a pyrolysis zone without added molecular hydrogen and without a catalyst operated at a temperature between 1,300 and 2,300.degree. F. (704 and 1,260.degree. C.) and a residence between 0.05 and 2 seconds to produce a product containing ethylene. The ethylene yield can be increased by adding a sulfur compound to the hydrogenated naphtha stream flowing to the pyrolysis zone.
摘要:
The conversion of carbon monoxide and hydrogen to produce a mixture of low molecular weight hydrocarbons which, on a methane-free basis, contain a predominance of C.sub.2 -C.sub.6 paraffins is achieved using as the catalyst a rare earth metal promoted layered complex metal silicate composition characterized as having repeating units of the structural formula[(1-x)Ni.sup.a + xRu.sup.6 ].sub.n (OH).sub.4 Si.sub.2 O.sub.5.wH.sub.2 Owhere x is a number from 0 to 1, this number expressing the atomic fraction of the metals nickel and ruthenium; a is the valence of nickel; b is the valence of ruthenium; n is a number equal in value to that defined by the ratio6/[a(1-x) + bx]and w is a number ranging from 0 to 4. A rare earth promoted nickel chrysotile is the preferred catalyst.
摘要:
An improved process has been discovered for hydrodenitrification of high nitrogen content charge stocks by effecting the nitrogen removal in the presence of a non-zeolitic catalyst consisting essentially of a nickel and/or cobalt substituted synthetic mica-montmorillonite having dispersed therein tungsten in the form of its oxide and/or sulfide.
摘要:
When ethylene is telomerized to produce alpha-olefins in the presence of an organo-aluminum catalyst, the aluminum catalyst is present in the normally liquid alpha-olefin product and must be removed prior to distillation of that product. This removal is accomplished in two zones. Water is added to the alpha-olefin product containing the organo-aluminum catalyst in a first zone to produce an aqueous phase containing a suspension of aluminum hydroxide and an organic phase containing the alpha-olefins. After removal of the organic phase, a sufficient amount of an aqueous solution of a polyacrylamide in anionic form is added to the aqueous phase to result in at least 90 percent of the aluminum hydroxide settling in a time period of less than ten minutes at ambient conditions.