Abstract: A method and apparatus for the separation of C4 olefins (butene-1, trans-2-butene, cis-2-butene, etc.) and C4 paraffins (normal butane, isobutane, etc) from a C4 hydrocarbon mixed gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. is provided. The apparatus includes several adsorption towers loaded with an adsorbent which selectively adsorb olefins and two distillation towers for the separation of the mixture gases of olefins/desorbents and paraffins/desorbents respectively.

Abstract: A plurality of hollow filter sheets have a suction pipe inserted therethrough to be stacked with a ring-shaped packing clamped therebetween. Therefore, a gap between the hollow filter sheet and the suction pipe is watertightly sealed. In the hollow filter sheet, a hollow portion is provided between two filters, and then a spacer with a surface having pits and projections is provided in the hollow portion. A narrow passage space allowing liquid to pass through is provided between the filter and the spacer by pressing the two filters against surfaces of the spacer with the packings and causing the filters to be deformed into a shape according to the surfaces of the spacer. The narrow passage space is smaller than a drainage space between the filters and the spacer that are not clamped by the packings.

Abstract: A reactor which comprises a vessel (1) with a vessel bottom (2), a stirrer (3) arranged in the vessel, an emergency discharge valve (4) arranged in the vessel bottom for emptying the reactor in less than 600 seconds and at least one filtration device (5) arranged in the vessel bottom is suitable for the safe preparation of organic peroxides. The process for preparing an organic peroxide comprises the steps of preparing a solid hydroperoxide in the form of a suspension in the reactor, filtering the suspension through the filtration device (5) arranged in the vessel bottom (2) while retaining the solid hydroperoxide in the reactor and reacting the hydroperoxide with an alkylating agent, an acylating agent or a carbonyl compound.

Abstract: The present invention discloses a method of forming a media support wall framework having a graduated through/pore space of the framework wall such that the graduation provides a greater through space in the lowest region of the framework; providing thus an entry plenum pressure differential compensation that compensates for media compaction problems associated with media contained in vertically standing remediation units; thus providing a more equalized passage of a contaminated air or water stream in a radial direction through out the full height of the media bed and assuring more efficient use of the contained media.

Abstract: A system (300) and attachment (200) for removing water from a material is disclosed. The system (30) can include: transporting (310) a material to be dewatered on a porous conveyor belt; conveying (320) the material to be dewatered between a top press attachment and bottom press attachment to release moisture; expelling (330) moisture to a porous buffer structure above the material in the top press attachment and below the material in the bottom press attachment; directing (340) the expelled moisture to a top and bottom tray of the top and the bottom press attachments; and draining (350) the top and bottom trays. Advantageously, the system (300) and attachment (200) provide two major escape routes for dewatering and provides a reliable, high volume assembly line batch process for efficient and robust operations.

Abstract: A fluid processing system comprising a housing (12) and at least one of a first type and at least one of a second type module, (25-28), The first and second modules having different fluid processing characteristics each module comprising a body of wound layers of a sheet material, said body having an inner and an outer peripheral surface, a first and a second end face, a passage (42, 44) extending along the winding axis of said body and in fluid communication with said inner peripheral surface, the passage of one of the first type and one of the second type modules being closed at one end thereof, said sheet material having a plurality of openings formed therein, said openings forming a first and a second type of channels within the wound layers of sheet material of said body, extending in a direction from the inner peripheral surface to the outer peripheral surface, the first type of channels being open at one end at said outer peripheral surface of the body and closed at the other end located adjacent to sa

Abstract: An submersible media-filled wastewater treatment filter (18) for use with a septic tank (10) or other treatment unit utilizes a special media (30) to provide solids separation and biological treatment within the filter unit. The media is a highly compressible material with a large surface area to volume ratio. As microorganisms that provide biological treatment of the wastewater flowing therethough grow and multiply in the filter media, the pores of the media may become clogged with biomass and require flushing. The filter provides for in place regeneration of the media. For example, a tool (38) can be used from above the ground surface to compress the media (30), thus flushing the accumulated solids out of the filter media and into the tank (10) in which it is installed.

Abstract: A filtration housing is disclosed.

Abstract: A reactor for carrying out catalyzed liquid reactions in which the catalyst is present as a dispersion in the reaction zone. The reactor includes at least one inlet and outlet, with all starting materials being fed in via the inlet and all products being discharged via the outlet. The inlet and outlet can be switched so that an exit previously serving as the outlet is utilized as an entrance serving as the inlet and at the same time an entrance previously serving as the inlet is utilized as an exit serving as the outlet. The inlet and outlet each include a filter element that keeps the catalyst in the reactor. The reactor also includes a device that ensures homogeneous distribution of the catalyst and the starting materials in the reactor. This reactor can carry out reactions at a high solids content without the catalyst having to be separated off from a product stream in an extra process step and without regular cleaning and thus shutdown of the process being necessary.

Abstract: A portable water-treatment bar comprises an upper cap, a lower cap and multiple containing sections. The upper cap is circular and has an enlarged abutting rim at its top. The lower cap has a wedge portion with multiple passages. Each containing sections is hollow, has multiple holes defined on sidewalls and further has an insertion covered with a net. The multiple containing sections selectively accommodate different water-treatment materials and preferably combined with the each others and caps at two ends by supersonic binding to achieve the portable water-treatment bar that can be carried conveniently and inserted into a bottle container directly for water treatment.

Abstract: A media is used to remove species from aqueous solutions, particularly in the treatment of water to enable it to be suitable for drinking. The media includes a material selected from the group consisting of zirconium hydroxide, titanium hydroxide, hafnium hydroxide and combinations thereof. A preferred form of the media is a layer having an aspect ratio of at least 1:1, more preferably, at least about 10:1. Removed from the water are species selected from the group consisting of arsenate, selenate, chromate, borate, perchlorate, fluoride and combinations thereof. In particular arsenite (As+3) containing species are also removed from water. Arsenite may be removed from water to levels not greater than 10 parts per billion with a single exposure to the media. The media is selective for certain species over others.

Abstract: A filter cartridge for a gravity-fed water treatment device having a porous particulate filter disposed therein. The porous particulate filter has an open upper end, a closed lower end, and sidewalls therebetween. Water is treated as it flows through the sidewalls of the filter. The cartridge also contains granular media disposed within the porous particulate filter.

Abstract: A water filtration system for preventing scale and removing chlorine includes a vertically oriented elongated pressure vessel 11 having a fitting at the upper end thereof. The fitting includes a passage 30 for directing water into the pressure vessel and a passage 40 for allowing water to flow outwardly from the pressure vessel. A catalytic/magnetic device 50 is coupled to the input fitting passage and includes a catalytic chamber 51 and a magnetic chamber 54 through which the input water flows. A flow diffuser 57 receives the output of the magnetic chamber and directs it through a chlorine filtering media 60 in an upwardly traveling water flow. The chlorine filtered water is allowed to pass outwardly from the pressure vessel. The catalytic chamber 51 includes flexible fibers 61 of high nickel stainless steel while the magnetic chamber includes a center tube 95 having a plurality of oppositely oriented magnets supported on the exterior thereof.

Abstract: A method is provided for fixedly joining a cloth, a cloth-like fabric or a synthetic mesh to a rigid or semi-rigid hub to form a seal, which secures the cloth, the cloth-like fabric or the synthetic mesh to the hub by enclosing the edge of the material between the neck of the hub and a ring, and causing the fusing of the hub and ring through induction heating of a bonding agent The assembly is advantageously used as a filter screen in a filter press.

Abstract: A plate module and its use for separating fluid mixtures according to the methods of pervaporation and vapor permeation is comprised of a feed plate, a cover plate, a gasket, and a membrane to define at least one feed compartment and one permeate compartment. The feed compartment is connected to supply and removal ducts. The feed plate is formed as a single plate with no welding or deformation. Changes in the feed plate and distribution ducts can be easily effected without additional costs.

Abstract: Disclosed herein are a method and apparatus for removing liquid from a permeable material, such as slurries, sludges, porous solids and permeable foams. The method and apparatus involve constraining the material to be deliquified such that the material interfaces with at least one surface which is permeable to the liquid to be removed and then heating the material at one or more locations remote from the permeable surface or surfaces. Such constraining and heating of the material causes the in situ vaporization of the liquid in the vicinity of the remote location or locations. The vaporized liquid expands and forces at least some of the remaining unvaporized liquid through the permeable surface or surfaces.

Abstract: A plate filter comprises a plurality of shiftable filter plates and first and second deflecting rolls carried on opposite sides of each filter plate. The axes of consecutive first deflecting rolls lie alternatingly in a first plane and in a second plane spaced from one another. A filter cloth is guided in a zigzag course between consecutive filter plates by the first and second deflecting rolls. A first sprocket is affixed to each first deflecting roll and a second sprocket is mounted on each first deflecting roll for free idling rotation. First and second spaced, elongated, oppositely driven chains are respectively trained in a zigzag course in an alternating sequence about first and second sprockets of first deflecting rolls belonging to consecutive filter plates. The first and second chains are in meshing relationship with the first and second sprockets about which the chains are consecutively trained.

Abstract: A single pass filtration process for the removal of suspended solids from completion fluids used in oil or gas well drilling operations which utilizes pressure injection of these fluids into a filter having pattern filter plates.

Abstract: A method of energizing an electroluminescent device including several in series connected elementary light sources at least two of which emit radiations of different wavelengths, comprising the steps of supplying the light sources with current pulses of different intensities and controlling the duration of the pulses so that each intensity is inversely proportional to the emitted light flux.