Autonomous localized permeability material systems are provided that can include: a dynamically permeable porous material; and immobilized reagents operatively associated with the porous material in sufficient proximity to trigger a localized change in material pore size upon reagent reaction. Methods for preparing these materials are also provided as well as methods for autonomously modifying localized permeability of material.

The present invention relates to a water extraction system comprising a flow cell comprising a membrane; said membrane comprising an active layer comprising immobilized aquaporin water channels and a support layer, and said membrane having a feed side and a non-feed side; and an aqueous source solution in fluid communication with the feed side of the membrane.

The invention relates to a porous separation article having a fluoropolymer, polyamide, PEEK, or PEKK binder interconnecting one or more types of interactive powdery materials or fibers. The interconnectivity is such that the binder connects the powdery materials or fibers in discrete spots rather than as a complete coating, allowing the materials or fibers to be in direct contact with, and interact with a fluid. The resulting article is a formed multicomponent, interconnected web, with porosity. The separation article is useful in water purification, as well as in the separation of dissolved or suspended materials in both aqueous and non-aqueous systems in industrial uses. The separation article can function at ambient temperature, as well as at elevated temperatures.

A membrane process is provided for separating light olefins from light paraffins to produce a polymer grade light olefin product stream that is about 99.5 mol % ethylene or propylene. The process involves multiple stages to achieve the high purity product and provides for processing hydrocarbon streams that have differing concentrations of light olefins.

Method for the manufacture of a hydrogen-permeable membrane having a thickness of not greater than 30 m. The method includes plasma spraying at least one dense layer on a porous substrate such that during the plasma spraying, one sweep of a process beam deposits material particles over the substrate in a form of individual splats which do not produce a cohesive layer and said material particles include a proton-conducting ceramic material and an electron-conducting metallic component. The plasma spraying is LPPS-TF that utilizes a spraying distance of between 200 mm and 2000 mm, a sprayable powder starting material having a particle size range between 1 and 80 m and containing the proton-conducting ceramic material and the electron-conducting metallic component and a process beam dispersing the sprayable powder starting material to a cloud.

Synthesis, fabrication, and application of nanocomposite polymers in different form (as membrane/filter coatings, as beads, or as porous sponges) for the removal of microorganisms, heavy metals, organic, and inorganic chemicals from different contaminated water sources.

A filter membrane includes carbon nanotubes and carbon nitride nanoparticles. Inter-particle atomic interactions between the carbon nanotubes and the carbon nitride nanoparticles bind the carbon nanotubes and the carbon nitride nanoparticles together. A filter cartridge includes such a filter membrane disposed within an outer housing between a fluid inlet and a fluid outlet such that fluid passing through the outer housing between the fluid inlet and the fluid outlet passes through the filter membrane. Such filter membranes may be formed by dispersing carbon nanotubes and carbon nitride nanoparticles in a liquid to form a suspension, and passing the suspension through a filter to deposit the nanotubes and nanoparticles on the filter. Liquid may be filtered by causing the liquid to pass through such a filter membrane.

A method for manufacturing a filter membrane for inhibiting microorganisms includes the following steps: obtaining a nano-zinc precursor and dissolving it into water, adding at least one reducing agent and interfacial agent to the water, thereby reducing zinc ions of the nano-zinc precursor to zinc particles so as to form liquid having nano-zinc particles; respectively placing the liquid having nano-zinc particles and a polymer material into plastic masterbatch process equipment, respectively volatilizing the fluid having nano-zinc particles and polymer material through the plastic masterbatch process equipment, performing air extraction and mixing by the plastic masterbatch process equipment, and adding at least one grafting agent to perform a mixed graft link, allowing the nano-zinc particles and polymer material to be linked together stably so as to form a plastic masterbatch having nano-zinc particles; and making the plastic masterbatch into a filer membrane through film making equipment.

The present disclosure provides methods, compositions, kits and apparatuses for stabilizing membranes, membrane proteins, and/or membranes containing membrane proteins using hydrophobin.

A separation apparatus 10 includes a pretreatment section 20 that subjects a target fluid containing an olefin compound to at least one or more of a treatment for reducing an acetylene-based compound, a treatment for reducing a sulfur compound, and a treatment for reducing a fine particle component. In the pretreatment section 20, one or more treatments selected from a hydrotreating and an adsorption treatment with an adsorbent may be performed as the treatment for reducing the acetylene-based compound, one or more treatments selected from a washing and absorption treatment, an adsorption treatment with an adsorbent, and a hydrodesulfurization treatment may be performed as the treatment for reducing the sulfur compound, and one or more treatments selected from a liquid absorption treatment, a collection treatment, or a filtration treatment with a filter may be performed as the treatment for reducing the fine particle component.