Abstract: A gas liquefaction method which uses the pressure energy of a natural gas processing system to generate refrigeration for high temperature cooling of a gas, and uses a mixed gas refrigerant fluid to generate refrigeration for low temperature cooling of the gas to produce liquefied product.

Abstract: A gas liquefaction method which uses the pressure energy of a natural gas processing system to generate refrigeration for high temperature cooling of a gas, and uses a mixed gas refrigerant fluid to generate refrigeration for low temperature cooling of the gas to produce liquefied product.

Abstract: A cryogenic nitrogen rejection unit with improved methane recovery wherein higher quality nitrogen reflux is generated by successive vapor partial condensations and the nitrogen is introduced into a separation column preferably in a cascade fashion.

Abstract: Disclosed is a curable filler composition which resists absorption into a porous substrate, particularly one derived from wood, comprising: (1) a liquid, ungelled binder of an unsaturated polyester resin having number average molecular weight of from 500 to 3,000 derived from an ethylenically unsaturated carboxylic acid or anhydride thereof, the unsaturated polyester resin having been iminated with an alkylenimine, (2) one or more ethylenically unsaturated compounds different from and cocurable with the unsaturated polyester resin, (3) pigment, (4) a free radical initiator, and (5) optionally a carrier solvent for the filler composition.Disclosed is a method of minimizing absorption of a filler composition into a warm or hot porous substrate.Also disclosed is a porous substrate, particularly one derived from wood, having adhered to a substrate thereof the cured filler composition.

Abstract: Disclosed is a curable filler composition which resists absorption into a porous substrate, particularly one derived from wood, comprising: (1) a liquid, ungelled binder of an unsaturated polyester resin having number average molecular weight of from 500 to 3,000 derived from an ethylenically unsaturated carboxylic acid or anhydride thereof, the unsaturated polyester resin having been reacted with a hydroxyl-containing amine selected from the group consisting of an alkanol amine having a secondary amino group, an alkanol amine having a primary amino group and a mixture thereof, (2) one or more ethylenically unsaturated compounds different from and cocurable with the unsaturated polyester resin, (3) pigment, (4) a free radical initiator, and (5) optionally a carrier solvent for the filler composition.Disclosed is a method of minimizing absorption of a filler composition into a warm or hot porous substrate.

Abstract: A process for the separation of methane and nitrogen in a cryogenic distillation column driven by a closed loop recirculating fluid heat pump wherein additional column refrigeration is generated by rejecting process heat into a product stream thereby reducing the need for expansion of process streams and enabling recovery of product at relatively high pressure.

Abstract: Air-drying fatty acid-modified acrylic resins and oxidizable resinous vehicles containing same, and a novel drier system comprising a coordination complex of titanium and cobalt are herein disclosed.

Abstract: A process which effectively separates and recovers natural gas liquids from a natural gas stream containing nitrogen, regardless of the magnitude of the nitrogen concentration or changes in the nitrogen concentration.

Abstract: Process for separating a hydrogen-containing refinery-type gas mixture into various fractions using reflux condensation, drying and partial condensation and phase separation.

Abstract: Described are water reducible coating compositions comprising (A) an organosilane-polyol which is the reaction product of a hydrophilic polycarbinol and an organosilicon material selected from the group consisting of an organosilane, a hydrolyzed and condensed organosilane and mixture, thereof; and (B) a curing agent for the coating compositions.

Abstract: A selected paraffinic or olefinic liquid is used to scrub acetylene from a minor gas fraction of uncondensed gas from a hydrocarbon feed mixture containing ethylene, hydrogen, acetylene and methane. Hydrogen product gas is separated and recovered from said minor gas fraction. The major gas fraction is processed without said acetylene removal operation, but under elevated pressure conditions effectively avoiding acetylene solidification during the separation and recovery of an ethylene-enriched liquid.

Abstract: A process for separation of water and cyclic hydrocarbons from a gas mixture containing hydrogen, methane, water and cyclic hydrocarbons. An adsorption zone is provided including two adsorbent beds connected in series, one of the beds containing an adsorbent selective for cyclic hydrocarbons and the other bed containing an adsorbent selective for water. Following the passage of gas mixture through the beds, the bed containing cyclic hydrocarbon-selective adsorbent is regenerated with hydrogen-rich purge gas and the bed containing water-selective adsorbent is regenerated with aliphatic hydrocarbon-rich purge gas.