The present disclosure is directed to methods of producing zincoaluminosilicate structures with AEI, CHA, and GME topologies using organic structure directing agents (OSDAs), and the compositions and structures resulting from these methods.

The disclosure relates to a rotary kiln catalytically enhanced oxy-fuel gasification and oxy-fuel combustion system—power plant including an air separation unit arranged to separate oxygen from air and produce a stream of substantially pure liquid oxygen; rotary kiln gasifiers to convert municipal solid waste, biomass, alternate wastes, coal, or hydrocarbon fuels into a synthesis gas in the presence of oxygen, carbon dioxide, high temperature steam and lime catalysts; an oxy-fuel fired boiler arranged to combust synthesis gas, in the presence of substantially pure oxygen gas, to produce an exhaust gas comprised of water and carbon dioxide; and a carbon dioxide removal unit arranged to recover carbon dioxide gas from the exhaust gas, recycle a portion of the recovered carbon dioxide gas for use in the rotary kiln gasifier, and liquefy the remainder of the recovered carbon dioxide gas for removal from the plant. In this new plant, the carbon dioxide removal unit is thermally integrated with the air separation unit or alternately the liquid oxygen storage and supply system by directing a stream of liquid oxygen to the carbon dioxide removal unit to liquefy the recovered carbon dioxide gas, the liquid oxygen thereby evaporating and forming cold oxygen gas which is heated prior to consumption in the rotary kiln and oxy-fuel fired boiler.

Proposed are a photocatalyst, including titanium dioxide particles including titanium dioxide (TiO.sub.2), a carbon material located on all or part of the surface of the titanium dioxide particles and including at least one selected from the group consisting of graphene, reduced graphene oxide (rGO), and carbon nanotubes (CNTs), and bimetallic nanoparticles supported on the carbon material and including first metal nanoparticles and second metal nanoparticles, and a water treatment method using the same. In the photocatalyst and the water treatment method using the same, the photocatalyst including bimetallic nanoparticles and graphene oxide is prepared, thereby exhibiting high reduction efficiency and high selectivity to nitrogen gas even without the use of an external electron donor.

A molecular sieve that has high selectivity and enables high-speed molecular permeation is provided. The molecular sieve has a nanowindow formed lacking a portion of carbon atoms in graphene, and one or more heteroatoms substituting for one or more carbon atoms that constitute a rim of this nanowindow, in which an electrostatic field is induced within the nanowindow by the heteroatoms, the rim of the nanowindow is relaxed in cooperation with a permeating molecule having a van der Waals' radius larger than the nanowindow, and the molecular sieve becomes permeable to the permeating molecule.

A system for adjusting pressure in a reservoir includes a pump system for pumping a fluid into the reservoir and a system for supplying the fluid to the pump system. The fluid supply system includes a conversion device arranged to receive a fuel and a gas mixture comprising at least one oxidant, to react the fuel with the gas mixture and to supply fluid obtained upon reaction, the fluid supply system being arranged to supply at least a portion of that fluid. The fluid supply system further includes a source of the fuel. The fuel comprises hydrogen. The conversion device is arranged to react the fuel with a gas mixture comprising predominantly nitrogen.

One object of the present invention is to provide a compact multistage liquid storage-type condenser-evaporator capable of producing two kinds of gases having different compositions without increasing power, and a nitrogen production device using the multistage liquid storage-type condenser-evaporator without increasing the power for producing nitrogen, and the present invention provides a multistage liquid storage-type condenser-evaporator including a bottom liquid storage section which is configured to store the liquid supplied into the bottom evaporation passage without circulating, and a fluid collection section which is configured to collect the fluid which flows out from the bottom evaporation passage and discharge to the outside without returning into the bottom liquid storage section.

One object of the present invention is to provide a compact multistage liquid storage-type condenser-evaporator capable of producing two kinds of gases having different compositions without increasing power, and a nitrogen production device using the multistage liquid storage-type condenser-evaporator without increasing the power for producing nitrogen, and the present invention provides a multistage liquid storage-type condenser-evaporator including a bottom liquid storage section which is configured to store the liquid supplied into the bottom evaporation passage without circulating, and a fluid collection section which is configured to collect the fluid which flows out from the bottom evaporation passage and discharge to the outside without returning into the bottom liquid storage section.

The present disclosure is directed to methods of producing zincoaluminosilicate structures with AEI, CHA, and GME topologies using organic structure directing agents (OSDAs), and the compositions and structures resulting from these methods.

Reactive sorber is a flow sorption column for purification of gases at pressures till hundreds of bars by way of chemical capturing of impurities by metallic powder reactant (6). The powder is continuously rubbed in the process of mechanical stirring and is sorted with the help of a filtering divider (8) into two fractions, activated particles and exhausted material (12). The latter is removed into a waste collector (11, 13), which has a level meter calibrated in the units of purity of the gas exiting from the sorber.

A process comprising: subjecting a process gas containing NOx to a stage for absorption of NOx in a suitable absorption means, obtaining nitric acid and a tail gas containing nitrogen, argon and residual NOx; subjecting said tail gas to a treatment which comprises at least one NOx removal stage, obtaining a conditioned tail gas; subjecting at least a portion of said conditioned tail gas to a separation treatment, obtaining a product stream containing argon and a product stream containing nitrogen.