A fractionation system for removing heavy hydrocarbons in a gas stream. A stripping section receives a predominantly liquid phase of the feed gas stream. A co-current contacting system receives a predominantly vapor phase of the feed gas stream. The co-current contacting system includes a compact contacting bundle disposed within a vessel and including a plurality of substantially parallel contacting units, each of the plurality of contacting units having a droplet generator, a mass transfer section, and a separation system. Each droplet generator generates droplets from a liquid disperses the droplets into a gas stream. Each mass transfer section provides a mixed, two-phase flow having a vapor phase and a liquid phase. Each separation system separates the vapor phase from the liquid phase such that the concentration of heavy hydrocarbons in the vapor phase is lower than in the liquid phase.

Processes and facilities for providing recycled content hydrocarbon products (r-products) from separation of pyrolysis gas formed by pyrolyzing waste plastic are provided. Various separation schemes may be employed to process the recycled content pyrolysis gas (r-pygas) into one or more recycled content hydrocarbon streams, which can be used in forming a variety of recycled content products.

Processes and facilities for providing recycled content hydrocarbon products (r-products) from separation of pyrolysis gas formed by pyrolyzing waste plastic are provided. Various separation schemes may be employed to process the recycled content pyrolysis gas (r-pygas) into one or more recycled content hydrocarbon streams, which can be used in forming a variety of recycled content products.

Nickel based catalyst structures are described herein that include a plurality of metal oxides formed as crystalline phases within the catalyst structures. Each metal oxide of a catalyst structure includes nickel and/or aluminum, where one or more metal oxides includes a nickel aluminum oxide, and the one or more nickel aluminum oxides is greater than 50% by weight of the catalyst structure. The catalyst structures further have surface areas of at least 13 m.sup.2/g. The catalyst structures are resistant to high concentrations of sulfur and are effective in reforming operations for converting methane and other light hydrocarbons to hydrogen and one or more other components. For example, the catalyst structures are effective in coal and biomass gasification systems for the forming and cleanup of synthetic gas.

Nickel based catalyst structures are described herein that include a plurality of metal oxides formed as crystalline phases within the catalyst structures. Each metal oxide of a catalyst structure includes nickel and/or aluminum, where one or more metal oxides includes a nickel aluminum oxide, and the one or more nickel aluminum oxides is greater than 50% by weight of the catalyst structure. The catalyst structures further have surface areas of at least 13 m.sup.2/g. The catalyst structures are resistant to high concentrations of sulfur and are effective in reforming operations for converting methane and other light hydrocarbons to hydrogen and one or more other components. For example, the catalyst structures are effective in coal and biomass gasification systems for the forming and cleanup of synthetic gas.

Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful products, such as fuels. For example, systems are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials and/or starchy materials, to produce ethanol and/or butanol, e.g., by fermentation. Hydrocarbon-containing materials are also used as feedstocks.

A method provides for valorization of naturally abundant organic solid biomass under a specified gas atmosphere with the existence of a catalyst structure. The method effectively converts the organic solid feedstock while producing valuable liquid hydrocarbon products, as well as utilizing methane rich resources, providing an economical and environmental benefit in the oil and gas industry.

A method provides for valorization of naturally abundant organic solid biomass under a specified gas atmosphere with the existence of a catalyst structure. The method effectively converts the organic solid feedstock while producing valuable liquid hydrocarbon products, as well as utilizing methane rich resources, providing an economical and environmental benefit in the oil and gas industry.

Process and plant for recovering LPG in a refinery process combining the use of sponge absorber, deethanizer and debutanizer. The process and plant enable high LPG recovery and removal of hydrogen sulphide in the LPG product to low levels.

Process and plant for recovering LPG in a refinery process combining the use of sponge absorber, deethanizer and debutanizer. The process and plant enable high LPG recovery and removal of hydrogen sulphide in the LPG product to low levels.