A method for stabilizing oil is provided. An oil fraction having hydrocarbons with an initial boiling point of about 200.degree. F. to about 1050.degree. F. is hydrotreated to reduce the nitrogen content of the oil fraction to be stabilized. Subsequently, condensed aromatic compounds are selectively ...
A multi-layer composite of nonwoven fabrics comprising at least one layer of a self-bonded, fibrous, web nonwoven bonded to at least one layer of a microfibrous, nonwoven web having water repellency and water vapor permeability properties particularly suitable for protective apparel applications.
Vertical gate thin film transistors are integrated into an actively addressable liquid crystal array to provide the switching function for charging each pixel element and any desired peripheral transistor circuitry. One of the conductive plates of each pixel of the array includes an extended portion ...
Composition comprising a transition metal component and magnesium hydrocarbyl carbonate. Composition can be prepared by reacting suspension of magnesium alcoholate with carbon dioxide to form a magnesium hydrocarbyl carbonate and reacting magnesium hydrocarbyl carbonate with transition metal compone ...
A specially arranged fresh catalyst container is provided to effectively and efficiently transport store, and dispense fresh catalyst into a resid hydrotreating unit in an oil refinery. The fresh catalyst container is equipped with monorail- and bridge crane- grab channels to receive and be carried ...
A catalyst-recovery method for catalyst used in a continuous liquid phase oxidation process of an aromatic alkyl to an aromatic carboxylic acid product is disclosed. The aromatic carboxylic acid product is withdrawn from an oxidation reactor as an aqueous product and is thereafter subjected to cryst ...
An optically pumped laser which includes a laser diode array for generating optically pumped radiation having a uniform intensity distributed over a broad band-width, and a lasant material with an absorption band for receiving radiation within such bandwidth.
An improved deoiling process is provided for removing substantial amounts of oil from spent catalyst withdrawn from resid hydrotreating units. In the process, a slurry of spent catalyst and oil is spirally conveyed at an upward angle of inclination in a spiral classifier. Oil is drained from the upw ...
A catalyst-recovery method for catalyst used in a continuous liquid-phase oxidation process of an aromatic alkyl to an aromatic carboxylic acid product is disclosed. The aromatic carboxylic acid product is withdrawn from an oxidation reactor as an aqueous product and is thereafter subjected to cryst ...
Disclosed is an improved hydroconversion process for the hydroconversion of heavy hydrocarbon feedstocks containing asphaltenes, metals, and sulfur compounds which process minimizes the production of carbonaceous insoluble solids and catalyst attrition rates. The process is characterized by the use ...
