Abstract: A cracking furnace for the pyrolysis heating of an organic feedstock includes a heating section and at least one convection section. In one embodiment the furnace includes first and second convection sections positioned along opposite sides of the heating section. The openings for admitting flue gas to the convection sections can be at the top or the bottom of the heating section. In another embodiment the furnace includes a plurality of passageways for the communication of flue gas from the heating section to the convection section. The passageways can be positioned at the top or the bottom of the heating section. The passageways provide a more even flow of flue gas through the heating section by preventing recirculation of the flue gas within the heating chamber.

Abstract: The present invention is aimed at providing FRP formed by integrating a fiber reinforcing material and a non-woven fabric, and having excellent shaping ability, impact resistance after molding, and excellent reliability and low cost. The aim of the present invention is achieved by a complex fiber reinforcing material including a sheet-shaped fiber reinforcing material composed of reinforcing fibers, and a non-woven fabric laminated on at least one side of the fiber reinforcing material, wherein the fibers constituting the non-woven fabric pass through the fiber reinforcing material to integrate the non-woven fabric with the fiber reinforcing material.

Abstract: In a shell-and-tube type reactor, the leakage between the upper and lower chambers is substantially decreased by tightly fitting the reaction tubes to the shield. The present invention provides a reactor for use in catalytic gas phase oxidation characterized by expanding reaction tubes to at least one groove formed in the reaction tube-fixing part of an intermediate tube sheet to form a shield, thereby forming plural of chambers with the intermediate tube sheet, and forming an expansion joint around the periphery of each of the chambers.

Abstract: Disclosed is a process for controlling the level of in-process monomer in an emulsion polymerization reaction. Also disclosed is a method of controlling particle size by controlling the level of in-process monomer.

Abstract: An apparatus for removing a bottom cover on a coke drum. A support structure supports at least the coke drum. A vertical actuator has a cover end attached to the bottom cover and a support end attached to the support structure, and is arranged to move the bottom cover vertically in a removal operation of the bottom cover. A rotating actuator has a cover end attached to the bottom cover and a support end attached to the support structure, and is arranged to rotate the bottom cover in a removal operation. A frame assembly having opposing ends is provided, a pivoting end being attached to the bottom cover and a sliding end being slidably mounted. The frame assembly, the vertical actuator and the rotating actuator cooperate to remove the bottom cover in a removal operation.

Abstract: A processing apparatus includes a sealed vacuum chamber which contains a processing portion; a pressure controlling system which keeps the internal pressure of the sealed vacuum chamber constant at a predetermined level by exhausting the ambient gas in the sealed vacuum chamber; and an ambient gas recirculating system which recirculates the ambient gas exhausted from the sealed vacuum chamber back into the sealed vacuum chamber; wherein the ambient as recirculated by the ambient gas recirculating system is blown into the sealed vacuum chamber so that a gas flow is generated in a predetermined direction along the processing portion.

Abstract: An apparatus for performing continuous flow chemical reactions such as oxidation, oxidative dehydrogenation and partial oxidation processes involving a reactor design characterized by controlled/optimized addition of a reactant with the objective of: (i) avoiding the explosion regime of the reactant mixture (e.g., hydrocarbon/oxidant mixture); (ii) maximizing the selectivity of the reaction to the desired product; (iii) limiting the reactor temperature gradient and therefore the threat of reaction runaway; and (iv) controlling the operating temperature of the reaction zone so that desirable temperature range is maintained over the entire zone.

Abstract: A photocurable sheet-form material which comprises (a) a polymerizable unsaturated monomer, (b) a polymer which is either polymethyl methacrylate or a high-molecular polymer consisting mainly methyl methacrylate units and which is compatible or swollen with the polymer (a), (c) a photocuring agent, and (d) a fibrous reinforcement. It is excellent in productivity, handleability, and photocurability. This photocurable sheet-form material is usable for producing a layered molding and forming a backup layer (reinforcing layers) of a molded article, and is a useful material as a replacement protective material for pipes, covering material, lining material, fixing material, or the like.

Abstract: The outer shell fabric according to the invention is made of a textile material which is a double-weave woven fabric or a warp-knit knitted fabric constructed in such a manner that preferably a majority of one yarn type is placed on the face of the fabric and the majority of a different yarn type is placed on the back surface. One of the yarns may consist of multi-filamentary meta-aramid fiber (e.g. Nomex), the other of either a multi-filamentary or a spun (staple) para-aramid fiber (e.g. Kevlar). The textile material can be visualized as two separate fabrics being interlaced together by the sharing of yarns between them. When used as part of a firefighter or work garment for protection against heat and flame, the outer shell fabric has superior tear resistance, abrasion resistance, UV resistance, and thermal protective performance when compared to other outer shell fabrics used for the same application.

Abstract: A net-like structure particularly for geotechnical applications which comprises a first and a second layer which are mutually spaced and joined one another by spacers which are co-extruded together with the layers. At least one of the layers comprises at least one set of yarns arranged at one end of the spacers; the spacers have a reduced transverse cross-section.

Abstract: For use in a separation column, a mat element or a beam element has at least: an upper part 2; at least one distributor-collector part (3) having one or more secondary orifices (7i) and at least one main orifice (6), whereby the passage sections of orifices (8) and (7i) are different; and a lower part (4). The distributor-collector part or parts (3) arranged between the upper part (2) and the lower part (4). A sealing element (5a) arranged between the distributor-collector part (3) and the upper part (2), and a sealing element (5b) arranged between the distributor-collector part (3) and the lower part (4). A separation element (8) arranged at distributor-collector part (3), thus delimiting two spaces (3a, 3b) for circulation of fluids.

Abstract: A gas reclaiming equipment capable of separating SF6 gas from a mixed gas efficiently and shortening reclaiming work under reduced pressure. A gas separation equipment is provided between a gas insulated equipment and a gas liquefaction system. The gas separation equipment separates nitrogen gas from the mixed gas, and concentrates SF6 gas. Only SF6 gas is sent into the gas liquefaction system. The gas separation equipment uses pressure swing adsorption using an adsorbent with selective adsorption. Moreover, a buffer tank for storing mixed gas is provided between the gas separation equipment and the gas insulated equipment. The buffer tank and the gas liquefaction system are connected by a reflux-line. The reflux-line refluxes the gas in a gas phase in the gas liquefaction system to the buffer tank. Furthermore, the gas separation equipment is connected to a storage tank. The storage tank accumulates the nitrogen gas separated with the gas separation equipment.

Abstract: The present invention is directed to a method of making a substantially continuous filament web which includes providing a plurality of polymer extruders for supplying polymer streams of at least two different polymer compositions, and providing a spinneret assembly for receiving the polymer streams. The spinneret assembly includes a plurality of orifices from which the polymer streams are extruded for formation of substantially continuous filaments formed from the polymer compositions. The distribution of at least one of the polymer compositions within the spinneret assembly is selected to optimize selected physical characteristics of the resultant continuous filament web.

Abstract: A transfer belt for a paper machine has a substrate and a coating on at least one flat side. The coating has an inner layer and an outer layer adjacent thereto. The outer layer has a porous structure having cavities open toward the outer side.

Abstract: In order to make it possible for an inhomogeneous residue generated in a pyrolysis plant to be separated continuously and in as fully graded a way as possible, specially selected components are combined with one anther in an advantageous configuration. An essential element of the plant is the separation of a coarse residue in a coarse screen and the subsequent separation of the remaining residue in a zigzag separator into a light residue and a heavy residue. By use of the plant, in particular, the carbon-containing constituents are separated from the remaining residue. The individual components are mostly configured to be self-cleaning for fault-free operation.

Abstract: A process for the recovery of metal oxides from a solution containing metallic salts by spray roasting of these solutions. The process is particularly suitable for spray roasting spent pickling acids. The process feeds the solution to a reactor for spray roasting of the droplets in at least two stages, where at least one evaporation stage follows at least one conversion stage to convert the metal salts to metal oxides. The device for implementing the process includes a spray roasting reactor having a first heating zone to evaporate the water and a second heating zone to convert the metal salts to oxides.

Abstract: The present invention provides a wet-wipe comprising a non-woven composite elastic material comprising a non-woven elastic layer; and a non-woven gatherable layer. The gatherable layer is bonded to the elastic layer at at least two points; and is gathered between the bonded points. These wet-wipes have a softer more cloth like feel.

Abstract: A nonwoven fabric laminate having a meltblown layer positioned between two spunbond nonwoven layers. The meltblown layer having a gradient fiber size structure across a thickness thereof with at least one layer of coarse meltblown fibers. In one embodiment, the gradient fiber size structure has at least two layers of meltblown fibers, for example at least one layer of fine meltblown fibers and at least one layer of coarse meltblown fibers, having a mean fiber diameter difference of at least 4.0 microns.

Abstract: The present invention provides nonwoven glass composites formed from an essentially boron free glass wool and an essentially boron free chopped glass fiber, used as a reinforcing material. The nonwoven glass composites are suitable for air filtration apparatus and can be used in the semiconductor industry where the elimination of boron from clean rooms is of importance.

Abstract: A ClF3 gas generation system is provided with supply sources of chlorine (3) (for example a cylinder of compressed chlorine) and fluorine (4) (for example a fluorine generator) connected into a gas reaction chamber (2) enabling generation of ClF3 gas. The reaction chamber has a valved outlet (C) for the supply of the ClF3 gas to a process chamber for immediate local use.