A sorbent in the form of a layered, non-porous perovskite is provided, wherein the sorbent can include parallel, alternating layers of an organic layer, including an ordered array of organic moieties capable of reacting with a gaseous halogen, and an inorganic layer, including a metal-halide sheet. Furthermore, each organic layer can be sandwiched between inorganic layers. Methods for capturing one or more halogens from a gas stream are also provided, wherein the methods can include contacting a gas stream with a sorbent in the form of a layered, non-porous perovskite, wherein the sorbent can include parallel, alternating layers of an organic layer, including an ordered array of organic moieties capable of reacting with a gaseous halogen, and an inorganic layer, including a metal-halide sheet. One or more halogens in the gas stream can react with either alkyne groups or alkene groups found in the organic layer of the sorbent.

A high-purity chlorine dioxide gas may use hydrogen peroxide as a reducing agent and may use horizontal generator, evaporation crystallizer, dryer and other devices to produce chlorine dioxide gas (product) and sodium sulfate (by-product). Compared to the conventional chlorine dioxide preparation system, the chlorine dioxide reaction and the sodium sulfate crystallization are performed in two processes. These processes are relatively separate and independent, and continuously produce chlorine dioxide gas with high purity and low moisture content while the by-product salt cake is evaporated, crystallized, filtered and dried, thereby producing sodium sulfate, without generating solid and liquid waste.

A flow-through solid catalyst formed by coating a zeolite material on a metal or ceramic solid substrate. In some embodiments, the solid substrate is formed as flat plates, corrugated plates, or honeycomb blocks.

In the method for scrubbing a chemical from a medium, wherein the improvement comprises the steps of using a carbide derived carbon to adsorb the chemical which may later be released by heating. The carbide derived carbon may be a powder, a fiber, a solid foam, a mesh, or other solid form. The carbide derived carbon can adsorb a chemical in the gaseous, liquid, particulate, or aerosol phase.

Processes and plants are disclosed for separating carbon dioxide from a flue gas stream, for providing a source of atomic carbon by disassociating carbon dioxide and for generating electrical power from by-products of producing atomic carbon. In relation to separating carbon dioxide from a flue gas stream, the disclosed process includes energising a gas stream containing carbon dioxide to produce a disassociated stream by disassociating the carbon dioxide into atomic carbon and atomic oxygen using an energising apparatus. The process further includes separating the atomic carbon and the atomic oxygen into a carbon stream containing an atomic carbon phase and an oxygen stream containing an atomic oxygen phase using a high temperature cyclone apparatus.

A vacuum pump with abatement function is used for evacuating a chamber of a manufacturing apparatus. The vacuum pump with abatement function includes a vacuum pump having a discharge port to which at least one abatement part for treating an exhaust gas discharged from the vacuum pump to make the exhaust gas harmless is attached. The abatement part is selected from a plurality of abatement parts having different treatment types of exhaust gas and/or different treatment amounts of exhaust gas and/or different treatment performances of exhaust gas.

A process is described for increasing the hydrogen content of a synthesis gas mixture comprising hydrogen, carbon oxides and steam, comprising the steps of: (i) passing the synthesis gas mixture at an inlet temperature in the range 300-450 C. over a N first water-gas shift catalyst disposed in a first shift vessel to form a first shifted gas mixture, and (ii) passing the first shifted gas mixture at an inlet temperature in the range 170-300 C. over a second water gas shift catalyst disposed in a second shift vessel to form a second shifted gas mixture, wherein the second water-gas shift catalyst comprises copper and the first shift vessel contains a sorbent material for capturing halogen contaminants disposed downstream of the first water gas shift catalyst.

A method for decreasing an amount of a harmful substance of a chlorine-containing off-gas stream formed or used in a thermal treatment of a material may comprise dividing the chlorine-containing off-gas stream into a main stream and a substream, separating at least some chlorine from the main stream, lowering an amount of the harmful substance in the main stream by introducing a chlorine-containing additive into the main stream to enhance separation of the harmful substance, and filtering the substream such that a filter cake separated from the substream comprises at least part of the chlorine-containing additive.

A system to abate an emission from a first semiconductor process is disclosed. The system includes an abatement apparatus, such as a gas scrubber, to remove hazardous and toxic gas species from the emission. The abatement apparatus may combust the emission to remove these gas species using a fuel and oxidant. The system includes a fuel assembly fluidly coupled to the abatement apparatus which transmits the fuel from at least one source through the abatement apparatus. The fuel assembly may include a supply tank which contains a volume of fuel, a recovery apparatus which recovers and contains a recovery volume of fuel from a second semiconductor process, and a mass flow controller which may transmit fuel from at least one of the supply tank and the recovery apparatus through the abatement apparatus.

The present disclosure is related to systems and methods for the biological processing of hydrocarbon-containing substances. In particular embodiments, the systems and methods herein relate to pre-digestion of hydrocarbon containing substances and further processing of the same to produce hydrocarbon fuels, fertilizer, and other products.