WO/2015/071221 CONTACT AND SEPARATION COLUMN AND TRAY||WO||21.05.2015|
||PCT/EP2014/074181||SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.||WILKINSON, Peter Mervyn|
A contact and separation column comprising a column wall encasing a stack of one or more contact and separation cells, wherein each cell comprises: • - a tray (4) with a number of gas flow openings (6) opening into one or more contact and separation units positioned on an upper side of the tray (4), wherein each contact and separation unit comprises an upstream contact zone (8) with liquid inlets (12), and one or more downstream separation zones (10) provided with a swirler and a top end with a gas outlet; • - a downcomer (16) defining a liquid discharge; and • - a liquid supply (17) for supplying liquid to the contact and separation cell, wherein the wall of one or more separation zones (10) have a plurality of discharge openings (18) extending through the wall to allow fluid to pass through the wall from within the separation zone (10), and process for treating a gas in such a column.
WO/2015/072855 ELECTROLYSIS UNIT FOR WASTE WATER TREATMENT||WO||21.05.2015|
||PCT/NL2014/050785||BRILLIANT WATER INVESTMENTS II B.V.||LIEBRAND, Hugo|
An electrolysis unit for the separation of hydrocarbons from waste water, comprises a closed electrolysis vessel having at least an electrolysis compartment, a separation compartment, a vessel inlet, a vessel outlet, an air inlet and an air outlet. One or more removable electrode cartridges are located within the electrolysis compartment, each electrode cartridge comprising an electrode pair, separated by a fluid path. The vessel inlet and the vessel outlet are arranged such that a flow entering the electrolysis vessel through the vessel inlet will flow through the fluid paths of the electrode cartridges into the electrolysis compartment and subsequently through the separation compartment to the vessel outlet. The air inlet and the air outlet are arranged at an upper side of the vessel for circulating a flow of air through both the electrolysis compartment and the separation compartment.
WO/2015/070288 COMPOSITE GAS SEPARATION MEMBRANE||WO||21.05.2015|
||PCT/AU2014/050351||CO2CRC LIMITED||QIAO, Greg Guanghua|
The present invention relates to a gas separation membrane for separating a target gas species from a mixture of gas species, the membrane comprising: (i) a porous substrate having a first and second surface region between which the mixture of gas species will flow; (ii) a sealing polymer layer of different composition to the porous substrate that (a) forms a continuous coating across the second surface region of the substrate, and (b) is permeable to the mixture of gas species; and (iii) a selective polymer layer in the form of a cross linked macromolecular film that (a) is located on and covalently coupled to the sealing polymer layer, and (b) has a higher permeability to the target gas species relative to other gas species present in the mixture of gas species that is to be subjected to separation.
WO/2015/071716 EXHAUST GAS CONTROL CATALYST||WO||21.05.2015|
||PCT/IB2014/002343||TOYOTA JIDOSHA KABUSHIKI KAISHA||MIURA, Masahide|
Provided is an exhaust gas control catalyst including: a substrate (21); and a catalyst layer (22) that is arranged on the substrate, in which the catalyst layer (22) includes a palladium region (23) that contains palladium, aluminum oxide, ceria-zirconia solid solution, and a composite oxide of lanthanum, iron, and zirconium, and a rhodium region (24) that is arranged adjacent to the palladium region along a plane direction of the catalyst layer and contains rhodium, aluminum oxide, and ceria-zirconia solid solution.
WO/2015/073475 INTEGRATED SORBENT INJECTION AND FLUE GAS DESULFURIZATION SYSTEM||WO||21.05.2015|
||PCT/US2014/065113||BABCOCK & WILCOX POWER GENERATION GROUP, INC.||WARREN, Eric, M.|
An integrated sorbent injection, heat recovery
, and flue gas desulfurization system is disclosed. A dry sorbent is injected into the flue gas upstream of the air heater. This reduces the acid dew point temperature, permitting additional heat energy to be captured
when the flue gas passes through the air heater. The flue gas then passes through a desulfurization unit and through a baghouse, where solids are captured
. The capture
of additional heat energy permits the overall boiler efficiency to be increased while safely operating at a lower flue gas temperature. The integrated system consumes no greater quantity of sorbent than conventional methods but provides the benefit of improved plant heat rate.
WO/2015/072854 AN APPARATUS AND METHOD FOR PARTICULATE CAPTURE FROM GAS STREAMS AND A METHOD OF REMOVING SOLUBLE PARTICULATE FROM A GAS||WO||21.05.2015|
||PCT/NL2014/050784||STAMICARBON B.V.||HIGGINS, Brian Sayre|
Disclosed is a method for the removal of soluble particulate matter from a gas stream, such as urea dust from the off-gas of a finishing section of a urea production plant. The method comprises subjecting the off-gas to at least two quenching stages an aqueous quenching liquid. The quenching liquid used in a first, upstream quench stage, is allowed to have a higher concentration of dissolved particulate matter than the quenching liquid in the second, downstream quench stage. The quenched gas is led through a particle capture
zone, typically comprising one or more of a wet scrubber, a Venturi scrubber, and a wet electrostatic precipitator.
WO/2015/071226 PROCESS FOR REMOVING MERCAPTANS FROM A GAS STREAM||WO||21.05.2015|
||PCT/EP2014/074196||SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.||SMITS, Jozef Jacobus Titus|
The present invention relates to a process for removing mercaptans from a gas stream, comprising the steps: • (a) contacting a gas stream comprising at least a mercaptan of the general formula R i-SH, wherein R1 xis an alkyl group comprising 1 to 4 carbon atoms, with an aqueous absorption medium comprising (1), (2) and (3): • (1) a solvent; • (2) a substituted disulfide of the genera l formula R 2-SS-R 3wherein R 2and R 3are carbon comprising substituents of which the corresponding R 2-SH and R 3-SH thiols have a vapour pressure below the vapour pressure of any R i-SH thiol and at least one of R 2and R 3is an electron withdrawing group; and • (3) at least a catalytic amount of a, preferably nitrogen-containing, base; • (b) retrieving the absorption medium after use in step (a); • (c) regenerating
the absorption medium in a regeneration
unit; • (c') oxidizingat least a part of the regenerated
absorption medium; • (d) recycling the regenerated
and oxidized absorption medium to step (a); The process of the invention provides an optimized process for removing mercaptans from a gas stream al lowing efficient re-use of substituted disulfides.
WO/2015/073945 METHOD FOR REMOVING CHROMIUM FROM WATER USING WEAK BASE ANION EXCHANGE RESIN AT NEAR-NEUTRAL PH||WO||21.05.2015|
||PCT/US2014/065900||RESINTECH, INC.||GOTTLIEB, Michael C.|
A method of removing chromium from water using a weak base anion exchange resin at a pH above about 5 includes the step of periodically reducing a flow of the water through the ion exchange resin for a rest period, such that a secondary mechanism of chromium removal predominates, wherein chromium ions are removed from the weak base anion exchange groups and precipitated inside the ion exchange resin. In an alternative embodiment, rather than resting, the ion exchange resin is periodically conditioned with an acid so as to enhance the secondary mechanism.
WO/2015/073372 REGENERABLE SYSTEM FOR THE REMOVAL OF SULFUR COMPOUNDS FROM A GAS STREAM||WO||21.05.2015|
||PCT/US2014/064832||REGENTS OF THE UNIVERSITY OF MINNESOTA||TSAPATSIS, Michael|
The disclosure relates to copper oxide-based sorbents, and processes for preparing and using them. The sorbents are preferably used to remove one or more sulfur species from gas streams. The sorbents comprise a porous silica support material impregnated with CuO nanoparticles. The nanoparticles are uniformly distributed throughout the porous silica support and sulfur compounds are adsorbed on the nanoparticles.
WO/2015/073345 MACHINE AND PROCESS FOR PROVIDING A PRESSURIZED LIQUID STREAM WITH DISSOLVED GAS||WO||21.05.2015|
||PCT/US2014/064727||NANO GAS TECHNOLOGIES, INC.||ROE, Cliffton, Lee|
A machine and process for providing a gas liquid mixture are described. The process can include providing a pressurized fluid stream that includes a mixture of a gas and a liquid; and subjecting the fluid stream to a series of alternating flow regions that include a plurality of laminar flow regions and turbulent flow regions. The machine can include a pressure vessel that includes, above a mid-line, a gas nozzle adapted for the addition of a gas to an interior volume of the pressure vessel and a liquid atomizer adapted for the addition of a liquid to the interior volume of the pressure vessel; below the mid-line, a fluid outlet positioned above a bottom of the pressure vessel and a clean-out port positioned at or adjacent to the bottom of the pressure vessel; and a means for determining a fluid level within the interior volume of the pressure vessel.