摘要:
The combustible component of a stream of low heating value gas comprising carbon monoxide, hydrogen and methane is combusted using less than a stoichiometric amount of air in the presence of an oxygenation catalyst and the heat energy in the combusted gas is utilized, for example, by expansion in a gas turbine.
摘要:
The combustible component of a gas stream of low heating value is combusted using less than a stoichiometric amount of oxygen in the presence of an oxygenation catalyst and the heat energy in the combusted gas is utilized, for example, by expansion in a gas turbine.
摘要:
A catalyst composition comprising an alumina-aluminum phosphate-silica support bearing a halogen, a Group VI metal and a Group VIII metal in which the support has an average pore radius of from about 10 .ANG. to about 300 .ANG., a surface area ranging from about 50 m.sup.2 /g to about 400 m.sup.2 /g and a pore volume of about 0.1 to about 1.5 cc/g. The catalyst composition is used for hydroprocessing oils and possesses significant hydrodenitrification activity.
摘要:
Boron trifluoride is removed from coordination compounds contaminating organic liquids by contacting the contaminated liquid with silica. For example, boron trifluoride is removed from a boron trifluoride-n-butanol coordination compound contaminating a 1-olefin oligomer product by passing the contaminated liquid oligomer through a bed of silica.
摘要:
Boron trifluoride contaminant is removed from organic liquids by contacting the contaminated liquid with polyvinyl alcohol. For example, boron trifluoride catalyst is removed from 1-olefin oligomer product by passing the liquid oligomer through a bed of granular polyvinyl alcohol.
摘要:
An integrated in situ combustion process for producing subterranean carbonaceous deposits in which the resulting flue gas of low heating value is combusted over an oxidation catalyst at substoichiometric conditions and is expanded in a gas turbine which drives the air compressor for injecting the combustion air into the underground carbonaceous deposit. An oxidation catalyst is provided for reducing carbon monoxide in the combusted flue gas comprising platinum and palladium.
摘要:
The combustible component of a gas stream of low heating value is combusted using less than a stoichiometric amount of oxygen with minor production of carbon monoxide in the presence of an oxygenation catalyst comprising platinum and a cocatalyst selected from Groups IIA and VIIB, Group VIII up through atomic No. 45, the lanthanides, chromium, zinc, silver, tin and antimony. This combusted gas can be directly vented to the atmosphere after energy has been extracted from it for a useful purpose.
摘要:
The present invention is a method for obtaining an electrical signal from a patient that corresponds to a meridian. The present method contemplates locating a dermal area of a patient proximate a meridian. One embodiment of the present invention comprises locating a dermal area by iteratively measuring and comparing the conductivity of a patient's skin until a significant level of conductance is indicated. A probe may then be placed in contact with the dermal area, and actuated to obtain an electrical signal therefrom. The probe tip may be specially designed to apply an appropriate amount of pressure to the dermal area to directly sense a meridian, and configured to avoid erroneous measurements resulting from misalignment of the probe or probe tip.
摘要:
A statistically large population of particles of amorphous precipitated silica comprising pigmentary phase particles and glassy phase particles and having a glassy phase fraction in the range of from 0.3 to 30 area percent is useful as an abrasive for dentifrice compositions, especially toothpaste.
摘要:
Acrylonitrile is produced by passing a gaseous mixture comprising propylene, molecular oxygen and ammonia upwardly through a fluidized bed comprising particles of a highly-active acrylonitrile catalyst in physical admixture with particles of a composite consisting essentially of antimony oxide and silica. The use of the antimony oxide-silica composite moderates the effect of the highly-active acrylonitrile catalyst reducing its activity sufficiently to enable the use of longer residence times, but without reducing the acrylonitrile selectivity of the catalyst.