Abstract: This invention relates to a new form of crystalline silicoaluminophosphate identified as SAPO-17, to a new and useful improvement in synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.

Abstract: Coal is rendered less subject to abrasion and disintegration by reducing it to a 0.2 to 0.5-inch particle size and drying it at a temperature of 200.degree. to 230.degree. F. for 3-7 minutes. The coal can be rendered less susceptible to spontaneous ignition by the application of a treating agent which can be a light cycle oil, heavy cycle oil, clarified slurry oil, a petroleum or coal derived distillate or residuum, a solution of durene in gasoline and mixtures of two or more of the preceding.

Abstract: A method and apparatus for improving the separation of a catalyst phase from a gas suspension phase in a fluidized catalytic cracking (FCC) unit. In a vertical separation embodiment, a cyclone separator inlet is located in the upper portion of a riser conversion zone and draws off gaseous hydrocarbon materials, while catalyst particles continue vertically to the end of the riser conversion zone, and pass through a catalyst conduit to a catalyst storage area. In a horizontal separation embodiment, the catalyst/hydrocarbon mixture is transported horizontally from the end of the riser conversion zone past a cyclone separator inlet towards a catalyst conduit. The cyclone inlet draws off gaseous hydrocarbon materials, while the catalyst particles pass through the catalyst conduit to a catalyst storage area.

Abstract: A wastebasket includes a container and a lid which is mounted on the container. The container is formed with an opening providing access to the container's interior. The lid is pivotable about a pivot axis to cover and at least partially uncover the container opening. The pivot axis divides the lid into a forward portion and a rearward portion which are respectively disposed on opposite forward and rearward sides of a vertical plane encompassing the pivot axis when the lid is in a position covering the container opening. The forward portion of the lid has a greater cross-sectional area than the rearward portion, and the rearward portion has a greater weight than the forward portion. The lid is pivotable between a first position, where the lid substantially covers the container opening, and a second position, where the forward portion of the lid is disposed inwardly of the container and uncovers at least a portion of the container opening.

Abstract: A process for using hydrogen-containing gas to regenerate a zeolite catalyst comprising at least some crystalline aluminosilicate zeolitic material having pore windows formed by 8-membered rings of oxygen atoms, e.g., ZSM-34, which has been used to promote conversion of methanol and/or methyl ether to light olefins. Contact of such catalysts with hydrogen-containing gas such as hydrogen or synthesis gas at particular regeneration temperatures and pressures can restore the activity of such catalysts either in the presence or absence of organic reactants without forming potentially catalyst-damaging by-products such as water.

Abstract: A semi-continuous multi-stage catalytic technique for converting lower olefinic feedstock to heavier liquid hydrocarbon product. The invention provides methods and means for: (a) contacting alkene-rich feedstock at high space velocity elevated temperature in a continuous primary stage reaction zone with shape selective medium pore zeolite oligomerization catalyst particles to convert at least a portion of the lower olefinic components to intermediate olefinic hydrocarbons, said primary stage catalyst having an average acid cracking activity of about 0.

Abstract: A process for converting crude aqueous methanol feedstock or the like to olefinic hydrocarbons in contact with a medium pore shape selective crystalline acid zeolite catalyst, wherein the improvement comprises contacting the aqueous methanol feedstock with a liquid propane-rich hydrocarbon extractant under liquid extraction conditions, recovering an aqueous phase containing the major amount of water introduced with the feedstock, recovering an organic extract phase comprising the hydrocarbon extractant and a portion of methanol introduced in the feedstock, and converting the extracted methanol at elevated temperature under catalytic reaction conditions to produce predominantly olefinic hydrocarbons.

Abstract: A process and catalyst are disclosed for selectively oxidizing alkylaromatics, e.g., o-xylene, to oxygenated aromatics, e.g., phthalic anhydride. The catalyst of the process comprises a layered titanate which contains interspathic polymeric silica and a heavy metal element, e.g., vanadium.

Abstract: In the control of a refinery process, vanadium content of the hydrocarbon streams is determined by measuring the intensity of the 5 isotropic and 6 anisotropic ESR spectral peaks. The ln of the sum of the intensities of these two peaks has a linear relationship to vanadium content.

Abstract: The permeability of a subterranean oil-bearing formation is controlled by the injection of an aqueous solution of a cross-linked block copolymer containing polar and non-polar segments, with the polar segments generally making up at least 50 percent, usually 60 to 99 percent, of the copolymer. The polar segments are derived from an alkylene oxide and the non-polar segments from styrene or an alkyl styrene either by itself or with a diene. The copolymers are cross-linked with an amino resin or a combination of a phenolic and a water-dispersible aldehyde component. The resulting copolymer gels are stable at low pH conditions, such as those of CO.sub.2 flood conditions.

Abstract: A catalyst effective in hydrotreating and hydrocracking sulfur- and nitrogen-containing hydrocarbon feeds at low pressure. The catalyst is prepared by incorporating a platinum group metal such as palladium in ZSM-20 or in dealuminized zeolite Y. Unlike most palladium catalysts, this catalyst is not poisoned by nitrogen and sulfur in the feed.

Abstract: A composition for making an in situ disposable propellant canister for utilization in controlled pulse fracturing. Said canister is composed of a porous light fabric material in combination with a gel solution. The gel creates a formable mass after solidification. Said mass can be made of a gel thickness sufficient to support and contain a propellant. Upon ignition of said propellant, the gelled canister is destroyed thereby alleviating a clean up operation.

Abstract: A method of determining the concentration of a chelated ferric ion in a solution comprising measuring the ultraviolet (UV) light absorption of the solution at the wavelength of about 237 to about 241 nanometers (nm). The measured absorption is then correlated to a previously-determined value of the chelated ferric ion for the measured UV absorption value.

Abstract: A fluid filled marine seismic streamer employs a plurality of hydrophones spaced apart along its length to detect seismic reflection signals from subsurface formations below a water layer. A plurality of fluid blocking members are also spaced apart along the length of the streamer. A plurality of flow through spacers having varying flow through apertures are positioned between each hydrophone adjacent to a fluid blocking member that generates pressure pulses in the fill fluid of significant magnitude to be detected by such hydrophone. The size of the flow through apertures of such spacers progressively increases in a direction leading from the fluid blocking member toward the hydrophone.

Abstract: Coal is rendered less subject to abrasion and disintegration by reducing it to a 0.2 to 0.5-inch particle size and drying it in a drying zone at a temperature of 200.degree. to 230.degree. F. for 3-7 minutes while simultaneously applying a treating agent which can be a light cycle oil, heavy cycle oil, clarified slurry oil, a petroleum or coal derived distillate or residuum, a solution of durene in gasoline and mixtures of two or more of the preceding.

Abstract: An animal repellent composition comprising an animal repellent proportion of an olfactory animal repellent carried by a vehicle comprising a di(alkhyl) adipate and a method of repelling animals.

Abstract: A process is disclosed for the preparation of alkyl tertiary-alkyl ether concurrent with the alkylation of isoparaffins with olefins. The composite zeolite catalyst is reactivated in the alkyl tertiary-alkyl ether synthesis reactor.

Abstract: A dual chamber seismic air gun which discharges both chambers simultaneously to counterbalance the reactive forces generated by the discharges. The chambers are symmetrical within the housing of the gun so that the movement of the internal parts during operation also counterbalance each other. The gun is mounted coaxially on the air supply of a seismic array to provide a good profile for towing.

Abstract: The relatively highly permeable zones of a subterranean oil containing formation having a neutral to alkaline pH are selectively plugged by initially injecting an aqueous acid solution into the relatively highly permeable zones that lowers the pH of these zones to about 6 or less. Thereafter, an aqueous polysulfide solution is injected into the formation that preferentially enters the relatively highly permeable zones and allowed to disproportionate under the pH conditions within the relatively highly permeable zones to form a precipitate of elemental sulfur in situ which plugs the relatively highly permeable zones in the formation. Thereafter, improved sweep efficiency is realized in displacing oil from the lesser permeable zones. If the natural pH of the relatively highly permeable zones in the formation is about 6 or less, the initial treatment with the aqueous acid solution is unnecessary.

Abstract: This invention relates to an efficient process for shape-selective conversion of organic feedstock with a catalyst comprising a Clathrate Group tectosilicate such as ZSM-39 and a highly siliceous, shape selective zeolite such as ZSM-5. In one embodiment, a stabilized, dewaxed lube stock is prepared by catalytically dewaxing a hydrocrackate.