Abstract: In a process for removing entrained particulates from a gas, a chemical reaction may be conducted in a vessel. Conducting the chemical reaction may include suspending particulates in a gas in a fluidized bed in the vessel. A portion of the gas and entrained particulates may be directed to a filter medium and the entrained particulates may be filtered from the gas. Filtering the entrained particulates may include directing the gas from a feed side of the filter medium through the filter medium to a filtrate side of the filter medium and may also include directing at least a portion of the entrained particulates generally tangentially along the feed side of the filter medium to scour the feed side of the filter medium. The particulates may then be directed from the feed side of the filter medium into a dip leg.

Abstract: Disclosed are self-assembling block copolymers including diblock copolymers of the formula (I): wherein R1 is —(CHR—CH2—O)p—R?, p=2-6, R is H or methyl, and R? is H, C1-C6 alkyl, or C3-C11 cycloalkyl, R2 is C1-C22 alkyl or C3-C11 cycloalkyl, one of R3 and R4 is C6-C14 aryl and the other is C1-C22 alkoxy, n and m are independently 2 to about 2000, and 0<x?n and 0<y?m, which find use in preparing self-assembled structure and porous membranes. Embodiments of the self-assembled structure contain the block copolymer in a cylindrical morphology. Also disclosed is a method of preparing such copolymers.

Abstract: An arrangement for removing entrained catalyst particulates from a gas may include a pressure vessel, a filter assembly, and a dip leg. The pressure vessel may contain a fluidized bed of catalyst particulates suspended in the gas. Some of the gas and entrained catalyst particulates may be directed to the filter assembly where the entrained catalyst particulates are filtered from the gas by a filter medium. The catalyst particulates pass generally tangentially along a feed side of the filter medium, where they scour the feed side of the filter medium, and then pass into the dip tube which guides the catalyst particulates away from the filter medium.

Abstract: Disclosed are membranes formed from self-assembling diblock copolymers of the formula (I): wherein R1 is C1-C22 alkyl, R2 is C6-C20 aryl or heteroaryl, one of R3 and R4 is a C6-C14 aryl and the other is C1-C22 alkoxy, and n and m are independently about 10 to about 2000, which find use in preparing nanoporous membranes. Embodiments of the membranes contain the diblock copolymer that self-assembles into a cylindrical morphology. Also disclosed is a method of preparing such a membrane which involves spin coating a polymer solution containing the diblock copolymer to obtain a thin film, followed by annealing the thin film in a solvent vapor and/or soaking in a solvent or mixture of solvents to form a nanoporous membrane.

Abstract: Disclosed are self-assembling block copolymers including diblock copolymers of the formula (I): wherein R1 is C1-C22 alkyl, R2 is C6-C20 aryl or heteroaryl, one of R3 and R4 is C6-C14 aryl and the other is C1-C22 alkoxy, n and m are independently 2 to about 2000. The copolymers find use in preparing nanoporous membranes. Embodiments of the membranes contain the diblock copolymer in a self-assembled nanostructure of cylindrical morphology. Also disclosed is a method of preparing such copolymers.

Abstract: A support element, comprising a netting comprising a composition comprising a polyphenylene sulfide resin and at least one polyhedral oligimeric silsequioxane additive, is provided.

Abstract: An adjustable frame assembly for filter modules includes a lower base arrangement, an upper base arrangement, and an adjustable frame structure connected between the lower and upper base arrangements. Both the lower and upper base arrangements include mounts for positioning and supporting the filter modules. At least one of the base arrangements includes a piping system for supplying fluid to and/or receiving fluid from the filter modules. The adjustable frame structure is moveable between a first position, in which the lower and upper base arrangements are spaced a smaller first distance apart, and a second position, in which the lower and upper base arrangements are spaced a larger second distance apart. Filter modules may be mounted to the adjustable frame assembly when the adjustable frame structure is in the second position to form a filter apparatus.

Abstract: A modular filtration frame assembly is provided for holding components of a pipe system and filtration system. The modular frame assembly comprises a skid formed by a base and a central spine. The base has at least two legs and at least one lateral support disposed between the two legs, and the central spine has two uprights and at least one cross bar disposed between the two uprights. A component support member is attached to the central spine for supporting components of the pipe system. In the modular frame assembly, the base, central spine and component supports can be formed by selecting from predetermined and presized components in response to the design and size of the pipe system and filtration system. The component support member holds predetermined components of the pipe and filtration system having a predetermined centerline at the same vertical distance from the cross bar, thereby maintaining the same centerline for all pipe system components supported by the skid regardless of component diameter.

Abstract: A catalytic filter system adaptable to the various challenges of a catalytic gas phase reaction is provided, wherein the system comprises a filtration vessel having a fluid inlet and a fluid outlet, a separation wall provided in the interior of the filtration vessel and a plurality of filter candles, the separation wall dividing the interior into a raw gas chamber and a clean gas chamber; the separation wall comprising a plurality of openings designed to sealingly accommodate the plurality of filter candles; the fluid inlet being arranged in fluid communication with the raw gas chamber upstream of the plurality of filter candles; the fluid outlet being arranged in fluid communication with the clean gas chamber downstream of the plurality of filter candles; and the filter system comprising a first catalytic medium accommodated in the clean gas chamber downstream of the filter candles and upstream of the fluid outlet.

Abstract: Systems are provided for convenient and sterile isolation, collection, and seeding of cells onto a scaffold or tissue graft. The systems may be closed. Methods for use of the disclosed systems for isolation, collection and seeding of cells and generation of tissue engineered vascular grafts are also provided. The systems may be supplied in kits for efficient and expeditious use.

Abstract: A gas filter assembly includes a housing and a gas filter positioned in the housing. The gas filter includes a pleated filter pack, a spacer arrangement which includes solidified bonding material between adjacent pleat legs on the upstream surface of the filter pack, and insert spacers between adjacent pleat legs on the downstream surface of the filter pack.

Abstract: Corrugated fluid treatment packs and methods of making corrugated fluid treatment packs are disclosed. The fluid treatment packs may comprise a non-woven fibrous structure having a tubular configuration, a longitudinal axis, and circumferentially extending corrugations.

Abstract: A purification arrangement for a gas pipeline system includes a pressure vessel and at least first and second purification assemblies in the interior of the pressure vessel. A gas flow may be established through the pressure vessel, and the gas may pass through the first purification assembly and the second purification assembly to remove liquid and/or solid particulates from the gas. At least one of the first and second purification assemblies includes a separator assembly having one or more separators which removes particulates and a shell mounted to one or more of the separators to collect and contain the removed particulates.

Abstract: A purification assembly (10) may comprise a block member (12) and a purification unit (11) attached to the block member. A method of assembling a purification assembly may comprise attaching a purification unit to a block member. A purification unit may include fitting a fluid flow path (14) extending through the fitting, and a purification element (15) in the fluid flow path.

Abstract: A filter has first and second fittings, a permeable filter medium, and a housing. The housing defines u fluid flow path within the housing between the first and second fittings, and the permeable filter medium is arranged in the fluid flow path to remove one or more substances from a fluid flowing along the fluid flow path. A reservoir is positioned in an upper region of the housing and includes a wall surrounding the first and second fittings of the filter. Each of the fittings has a topmost portion and the wall of the reservoir has a topmost portion, the topmost portion of each filter fitting being at or below the topmost portion of the reservoir wall. A filter arrangement may include a filter and a manifold assembly having first and second fittings which may be sealingly coupled to or uncoupled from the first and second fittings of the filter.

Abstract: A filter manifold is provided for filtering particulates in fluid and gas streams. The filter manifold seals the inlet and outlet valves in a closed position until a filter capsule is loaded into a carriage assembly. The inlet and outlet valves are opened only when a filter capsule is properly loaded into the carriage assembly.

Abstract: A filter has first and second fittings, a permeable filter medium, and a housing. The housing defines a fluid flow path within the housing between the first and second fittings, and the permeable filter medium is arranged in the fluid flow path to remove one or more substances from a fluid flowing along the fluid flow path. A finger hold is positioned in an upper region of the housing, the finger hold defining a space that is sufficient to allow one or more fingers of an operator to fit in the space and grasp the filter.

Abstract: To move a filter along a manifold assembly the filter may be seated on a moveable shuttle assembly. Seating the filter on the shuttle assembly may include mating a key portion on the filter with a key portion on the shuttle assembly, each key portion corresponding to a filtration characteristic of the filter. The shuttle assembly and the seated filter may then be moved between a first position, wherein the key portions of the filter and the shuttle assembly are mated to one another and first and second fittings of the filter are spaced from first and second fittings of the manifold assembly, and a second position, wherein the key portions of the filter and the shuttle assembly are mated to one another and the first and second fittings of the filter sealingly engage the first and second fittings of the manifold assembly.

Abstract: Methods for preparing and using multiple chambered freezing bags containing biological fluid in the chambers are disclosed.

Abstract: Asymmetric membranes comprising a first asymmetric porous zone including a first porous asymmetry that increases from the first exterior surface through the first porous zone of the bulk, and a second asymmetric porous zone including a second porous asymmetry that increases from the second exterior surface through the second porous zone of the bulk, wherein the first average pore size is larger than the second average pore size, as well as methods of making and using the membranes, are disclosed.