This present disclosure relates to processes for removing contaminants from hydrocarbon streams, e.g. removing chlorides, CO.sub.2, COS, H.sub.2S, AsH.sub.3, methanol, mercaptans and other S- or O-containing organic compounds from olefins, paraffins, aromatics, naphthenes and other hydrocarbon streams. The process involves contacting the stream with an adsorbent which comprises a zeolite, an alumina component and a metal component e.g. sodium, in an amount at least 30% of the zeolite's ion exchange capacity.

A gas scrubber includes a canister having a rotatable spiral separator which provides a non-linear path configured to be filled with modular adsorbent material portions between a gas inlet and a gas outlet.

Disclosed is a method of adding a feed medium into a bioprocess. The method includes receiving a stream of CO2-rich gas; treating the stream of CO2-rich gas to remove impurities therefrom; preparing an aqueous mixture for absorbing carbon dioxide, the aqueous mixture having at least one inorganic nitrogen compound in a range of 0.1-50 wt % of the aqueous mixture, the at least one inorganic nitrogen compound is a nitrogen source for microorganisms; absorbing carbon dioxide from the stream of CO2-rich gas into the aqueous mixture, the aqueous mixture with absorbed carbon dioxide forming a feed medium; and adding the feed medium into a bioprocess.

This invention relates to modified MOF materials, methods of preparing them and processes using them. A modified MOF of the invention is modified by impregnating a MOF with an inorganic metal salt. The starting MOF contains at least one linker or ligand which contains an aryl amino group as part of its structure. These modified MOFs are able to adsorb either basic or acidic toxic industrial compounds (TIC). The modified MOFs can be used to remove TICs from various gaseous streams such as air.

Treatment of radioactive waste comprising organic compounds, and sulfur-containing compounds and/or halogen-containing compounds. An apparatus comprises a reaction vessel comprising a filter for carrying out thermal treatment of the waste and a thermal oxidizer. Utilizing co-reactants to reduce gas phase sulfur and halogen from treatment of wastes.

Disclosed herein are spacers having baffle designs and perforations for efficiently and effectively separating one or more membrane layers a membrane filtration system. The spacer includes a body formed at least in part by baffles that are interconnected, and the baffles define boundaries of openings or apertures through a thickness direction of the body of the spacer. Alternatively or additionally, passages or perforations may be present in the spacer layer or baffles for fluid flow there through, with the passages and baffles having a numerous different shapes and sizes.

A hybrid stepping motor has a connector housing formed integrally with an insulator having an upper insulator and a lower insulator. The hybrid stepping motor includes a stator core and output terminals concentrically disposed outside the stator core. A wiring pattern serving as the output terminals has connector pins and land portions disposed eccentrically with respect to one another. The land portions are formed on an outer edge side of the wiring pattern. A surface, which is an uppermost surface of the wiring pattern, is located below a lowermost surface, in which jumper wires and lead wires pass, of the lower insulator. The lead wires are pulled out from a lower side, and are pulled out to guiding grooves.

Provided are a microorganism having activity in reducing a concentration of a fluorine-containing compound in a sample, a recombinant microorganism including a gene derived from the microorganism, and a method of reducing the concentration of the fluorine-containing compound in the sample by using the microorganism or recombinant microorganism.

A method to produce a halogen-depleted gas is described. The method providing a gas derived from and/or including a source of biogas, mixing said gas with a source of hydrogen to produce a processed gas mixture including an acid, and separating said acid from said processed gas mixture. Sulfur, oxygen, carbon dioxide removal processes are integrated into the method. Production of secondary products, and removal thereof, are included. Pre and post processing may be integrated, and production of products is described.

In order to increase the operable range of a DC plasma torch in an abatement apparatus, the apparatus comprises a power control configured for controlling the power of the plasma torch by selective control of the plasma source gas flow regulator.