Membrane structures and their production and use
A technology of membrane structure and zeolite membrane, applied in membrane, membrane technology, semi-permeable membrane separation, etc., can solve problems such as laborious and slow methods
Inactive Publication Date: 2010-03-31
PHOENIX IPR LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
While this dry processing method can be adapted for lab-scale experiments, the method is slow and laborious
Method used
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Embodiment Construction
[0042] Embodiments of the present invention produce membranes of continuous zeolite membranes supported on porous alumina substrates. Membranes of zeolites in nature exhibit excellent solvent resistance. In an embodiment, organic liquid or aqueous dispersed value (aqueous dispersed value) or waste product solution of water in organic liquid (e.g. ethanol) can be dried and concentrated from any water level down to below 0.1% water , and easily break the azeotrope. Liquids that can be treated include but are not limited to alcohols such as ethanol or butanol, ketones, ethers such as THF or diethyl ether, amines, DMF, mineral oils such as transformer oil, corn oil and oils derived from other seeds Oils of biological origin, essential oils, agrochemicals, detergents and detergents, fragrances and fragrances, inks and adhesives, cosmetics and toilets, wastewater and water waste, beverages to be desalinated and Foods, biotechnological fluids, paints and dyes, and equilibrium react...
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Abstract
A method is provided for forming zeolite membranes in internal surfaces of a plurality of conduits in a cylindrical porous ceramic monolith, the conduits extending from one end of the monolith to theother and being disposed in a single annulus, said method including a step of : flowing a pre-treatment liquid (50) including a zeolite initiating agent into the conduits; causing at least part of a carrier liquid component of the treatment liquid to flow from the conduits into and through the body of the monolith to the exterior; and causing zeolite crystals to be deposited in the porous internalsurfaces of the conduits as the carrier liquid component flows into the monolith.. The substrates may be pre-conditioned for membrane formation by a method which comprises: (a) forming an aqueous suspension of zeolite particles; and (b) passing the suspension alternately (i) through the tubular conduits and (ii) out through the walls of the tubular conduits so as to deposit zeolite particles on the porous inner surfaces of the tubular conduits; wherein the porous substrates are treated in chambers (62) arranged e.g annularly and the suspension is supplied to the chambers from a first common manifold (58) via respective delivery tubes and is recovered via recovery tubes leading to a second common manifold (66), the first and second manifolds and the supply and recovery tubes being configured so that the branch path to and from each chamber is substantially the same. After pre-conditioning, formation of membranes may be by depositing or crystallising a zeolite membrane on the zeolite particles by gel crystallization. A membrane structure is also provided which comprises a tubular porous ceramic monolith having tubular conduits each having an internal diameter of 5 to 9 mm formed within the monolith with a zeolite membrane formed on the internal surface of each of the conduits, wherein either there are five or more conduits disposed in a singe annulus.
Description
technical field [0001] The present invention relates to a membrane structure, to a method of pre-conditioning a multi-conduit monolith for forming a membrane structure in a conduit, to a method of treating a plurality of porous substrates for conditioning for a membrane A method of forming a substrate of wherein said porous substrate has tubular conduits formed therein, the present invention relates to a method of treating a plurality of porous substrates to form a membrane in a conduit wherein said plurality of porous substrates has tubular conduits formed therein, The present invention relates to a module comprising various supports or monoliths, and also to the removal of water from organic liquids and / or the purification of water from eg polluted rivers. Background technique [0002] US-A-5362522 (Bratton et al., the disclosure of which is hereby incorporated by reference) relates to the production of membranes and discloses that, while extensive research had been carrie...
Claims
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IPC IPC(8): B01D63/06B01D71/02B01D67/00B01D69/10
CPCB01D2313/04B01D67/0051B01D63/066B01D71/028B01D2319/04B01D2323/30B01D69/105C02F1/444B01D67/0093B01D2323/42Y02A20/131B01D2313/041B01D67/00931B01D71/0281
Inventor G·J·布拉顿C·D·默顿
Owner PHOENIX IPR LTD