Abstract: A composition and an olefin conversion process are disclosed. The composition comprises a zeolite having incorporated therein a coke-suppressing amount of a coke suppressor selected from the group consisting of silicon oxides, phosphorus oxides, boron oxides, magnesium oxides, tin oxides, titanium oxides, zirconium oxides, molybdenum oxides, germanium oxides, indium oxides, lanthanum oxides, cesium oxides, and combinations of any two or more thereof. The olefin conversion process comprises contacting a first olefin with a catalyst composition under a condition effective to convert said first olefin to a second olefin wherein the catalyst composition is the same as the composition disclosed above. Also disclosed is a process for producing the composition.

Abstract: A catalyst composition and a process for using of the catalyst composition in a hydrocarbon conversion process are disclosed. The composition comprises an inorganic support, a Group VA metal or metal oxide, and optionally a Group IVA metal or metal oxide and a Group VIII metal or metal oxide. The process comprises contacting a fluid which comprises at least one saturated hydrocarbon with the catalyst composition under a condition sufficient to effect the conversion of the hydrocarbon to an olefin. Also disclosed is a process for producing the catalyst composition.

Abstract: A supported hydrogenation catalyst composition is disclosed which comprises a palladium component, at least one alkali metal iodide such as, for example, potassium iodide and an inorganic support material such as alumina. Also disclosed is selective hydrogenation process in which diolefins and/or alkynes are hydrogenated with hydrogen to this corresponding monoolefins.

Abstract: A catalyst composition, a process for producing the composition and a hydrocarbon conversion process for converting a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises a zeolite having impregnated thereon an activity promoter selected from the group consisting of molybdenum, molybdenum oxides, lanthanum, lanthanum oxides, and combinations of two or more thereof. The composition can be produced by incorporating the activity promoter into the zeolite. The hydrocarbon conversion process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.

Abstract: A catalyst composition and a process for converting a hydrocarbon stream such as, for example, a C.sub.9 + aromatic compound to C.sub.6 to C.sub.8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises an aluminosilicate, and a metal wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.6:1. The process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to a C.sub.6 to C.sub.8 aromatic hydrocarbon.

Abstract: A composition comprising a base and an alkoxylated compound selected from an alkoxylated alcohol and alkoxylated mercaptan is disclosed. The composition can be used to catalyze the reaction of a mercaptan and an elemental sulfur to produce a polysulfide compound. The polysulfide compound can be further treated with an alkylene oxide to reduce the mercaptan sulfur content of the polysulfide compound.

Abstract: A catalyst composition and a process for converting a C.sub.9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises a zeolite, a metal oxide, and optionally a selectivity modifier selected from the group consisting of silicon, sulfur, phosphorus, boron, magnesium, tin, titanium, zirconium, germanium, indium, lanthanum, cesium, oxides thereof and combinations of any two or more thereof. The process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.

Abstract: A catalyst composition and a process for hydrodealkylating a C.sub.9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises an alumina, a metal oxide, and a acid site modifier selected from the group consisting of silicon oxides, sulfur oxides, phosphorus oxides, boron oxides, magnesium oxides, tin oxides, titanium oxides, zirconium oxides, molybdenum oxides, germanium oxides, indium oxides, lanthanum oxides, cesium oxides, and combinations of any two or more thereof. The process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.

Abstract: A water-soluble polymer and a process for using the polymer for applications in a subterranean formation are provided. The polymer comprises repeat units derived from a nitrogen-containing olefinic monomer and optionally an olefinic comonomer. The polymer can be used in drilling fluids, workover fluids, completion fluids, permeability corrections, water or gas coning prevention, fluid loss prevention, matrix acidizing, fracture acidizing, and combinations of any two or more thereof.

Abstract: A composition and a process for treating a subterranean formation are disclosed. The process comprises injecting into the subterranean formation a composition which comprises a polymer, a crosslinking agent, a liquid, optionally a clay, and further optionally a weighting agent wherein the polymer forms a gel in the formation, in the presence of the crosslinking agent.

Abstract: An apparatus and a method for recovering hydrocarbon from a hydrocarbon producing well is provided. The apparatus comprises a two stage compression-assisted annular flow in which a first compression means is connected to a production tubing to flow gas and liquids, and a second compression means is connected to a tubing/casing annulus to flow gas at a relatively unrestricted flow rate.

Abstract: A stable liquid suspension composition comprising a liquid carrier, a solid fatty acid or a salt thereof, and a solid particulate is disclosed wherein said liquid carrier is selected from the group consisting of oils, olefins, terpenes, glycols, esters, ethers, alcohols, and combinations of any two or more thereof and said liquid carrier, solid fatty acid or salt thereof, and solid particulate are each present in said composition in a stabilizing amount sufficient to produce a stable liquid suspension. Also disclosed is a stable liquid composition comprising a liquid carrier, an oil-soluble polymer, and a solid particulate wherein said liquid carrier is selected from the group consisting of liquid alkenes, terpenes, esters, and combinations of any two or more thereof and said liquid carrier, oil-soluble polymer, and solid particulate are each present in said composition in a stabilizing amount sufficient to effect the formation of a stable liquid suspension.

Abstract: Polymer compositions and their applications in hostile environments for oil field operations are disclosed. The compositions contains a polymer which is copolymerized by (a) an ampholytic monomer having the formula of: ##STR1## where one and only one of the substituted groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4 must be a vinyl group, the rest can be the same or different and can be hydrogen or a C.sub.1 -C.sub.3 alkyl group; R.sub.5 is a phenyl group; n is .gtoreq.1 and .ltoreq.6; and q is 0 or 1; (b) at least one comonomer having an ethylenic linkage. The compositions further contain crosslinking agents, such as phenol and formaldehyde, for reducing permeability in a high temperature subterranean formation; and water for use in well treating fluids.

Abstract: A catalyst composition and a process for converting a hydrocarbon stream such as, for example, gasoline to olefins and C.sub.6 to C.sub.8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition comprises an alumina and a silica wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.25:1. The process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to an olefin and a C.sub.6 to C.sub.8 aromatic hydrocarbon.

Abstract: A composition and a process for substantially reducing or removing sulfide from a sulfide-containing fluid are disclosed. The composition comprises, or is prepared by combining components comprising, a sulfide-containing fluid and a sulfide-scavenging amount of a sulfide scavenger selected from the group consisting of bromates, iodates, and combinations of two or more thereof. The process comprises contacting a sulfide-containing fluid with a sulfide-scavenging amount of a sulfide scavenger under a condition sufficient to substantially reduce the sulfide concentration in the fluid.

Abstract: A catalyst composition and a process for converting a C.sub.9 + aromatic compound to C.sub.6 to C.sub.8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises a zeolite and a metal. The process comprises contacting a fluid stream containing a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the production of C.sub.6 to C.sub.8 aromatic hydrocarbon. Also disclosed is a process for producing the catalyst composition which can comprise: (1) impregnating a zeolite with an effective and coke-reducing amount of a metal compound under a condition sufficient to effect the production of a metal-promoted zeolite and (2) calcining the metal-promoted zeolite.

Abstract: A catalyst composition and a process for hydrodealkylating a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises an alumina and hexavalent chromium oxide. The process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.

Abstract: A composition which comprises a platinum-promoted zeolite and a gallium-promoted zeolite is disclosed. The composition can be used for converting a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon. Also disclosed is a process for converting a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbons employing the composition.

Abstract: A process which can be used to produce an aromatic sulfide compound having the formula of (R.sub.4-n)(X.sub.n)(W)Ar--S--R' is provided. The process comprises contacting, in the presence of a surfactant, a halo-substituted aromatic compound in an aqueous solution with a salt of a mercaptan under conditions sufficient to produce the aromatic sulfide in which the halo-substituted aromatic compound and salt of mercaptan are each present in an amount effective to synthesize the aromatic sulfide wherein R is hydrogen or a hydrocarbyl radical, X is a halogen, n is a number from 0 to 3, W is a substituent, Ar is an aromatic ring, and R' is a hydrocarbyl radical.

Abstract: A catalyst composition and a process for converting a hydrocarbon stream such as, for example, a C.sub.9 +aromatic compound to C.sub.6 to C.sub.8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises an aluminosilicate, and a metal wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.6:1. The process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to a C.sub.6 to C.sub.8 aromatic hydrocarbon.