Patent classifications
B01J19/2495
FIBER CONDUIT REACTOR WITH A HEAT EXCHANGE MEDIUM INLET AND A HEAT EXCHANGE MEDIUM OUTLET
An apparatus includes a conduit with two process fluid inlets at one end of the conduit, one process fluid outlet at an opposing end, a heat exchange medium inlet, and a heat exchange medium outlet. One of the fluid inlets includes a tube extending into the conduit and a perforated node at the end of the tube, and the other of the fluid inlets is arranged up stream of the perforated node. The apparatus further includes hollow tubes positioned longitudinally within the conduit between the two process fluid inlets, the process fluid outlet, the heat exchange medium inlet and the heat exchange medium outlet. In addition, the apparatus includes a collection vessel positioned proximate the fluid outlet and fibers extending through each of the hollow tubes, wherein one end of the fibers is secured to the perforated node and the other end of the fibers extends into the collection vessel.
CATALYST STRUCTURE
A catalyst structure, which makes it possible to reduce the flow passage resistance and raise the purification rate, is provided. A catalyst structure provided in an exhaust passage of an internal combustion engine comprises a base member which is formed by combining wire-shaped members, wherein the wire-shaped members do not include any wire-shaped member which is arranged to be orthogonal to a flow direction of an exhaust gas, and the wire-shaped members include wire-shaped members which are arranged obliquely with respect to the flow direction of the exhaust gas. The change in the cross-sectional area of the base member is suppressed by arranging the wire-shaped members obliquely with respect to the flow direction of the exhaust gas.
Synthesis gas manufacturing method and synthesis gas manufacturing apparatus
A method of manufacturing synthesis gas by catalytic partial oxidation can prevent formation of hot spots from taking place when driving mixture gas to pass through a catalyst-filled layer at high velocity. The method comprises converting mixture gas of source gas containing lower hydrocarbons and oxidative gas containing oxygen into synthesis gas containing hydrogen and carbon monoxide as main components thereof by causing mixture gas to flow through a fixed bed catalyst layer arranged in a reactor. The method of manufacturing synthesis gas by catalytic partial oxidation is conducted such that the mixture gas is made to flow to the catalyst layer under the condition that the Reynolds number does not exceed 20 at the inlet of the catalyst layer.
Alcohol reformer for reforming alcohol to mixture of gas including hydrogen
Reforming alcohol is disclosed. Alcohol is introduced into a conduit of an alcohol reformer so that the alcohol flows through a catalyst stage within the conduit. The catalyst stage includes an alcohol reforming catalyst, and a heat transfer member comprising thermally conductive material. The heat transfer member is in thermal contact with the conduit and the alcohol reforming catalyst. Simultaneously, exhaust gas is introduced from an internal combustion engine into an exhaust channel. The exhaust gas in the exhaust channel contacts fins extending outward from the conduit so that heat from the exhaust gas is transferred through the fins, the conduit, and the heat transfer member to the alcohol reforming catalyst.
METHOD FOR ASSEMBLING POLYCARBONATE MANUFACTURING APPARATUS AND POLYCARBONATE MANUFACTURING APPARATUS
A method for assembling a polycarbonate manufacturing apparatus comprising a plurality of apparatus elements, the method comprising: protecting an opening of each apparatus element, wherein the apparatus element is prepared as follows: at least a portion of a metal surface that comes into contact with an internal fluid of the apparatus element is polished with an abrasive corresponding to buff #400, and the polished metal surface is washed until becoming a state where no dirt is attached to a nonwoven fabric in a test of contact between the metal surface and the nonwoven fabric; and connecting the opening of the apparatus element to the opening of another apparatus element within a dust cover.
FIXED CATALYST BED COMPRISING METAL FOAM BODIES
The present invention relates to a fixed bed of catalytically active metal foam bodies having a volume of not more than 500 mL which consist to an extent of at least 95 wt % of metals. The fixed bed is used for catalytic reactions in a three-phase reaction mixture.
Catalyst gauze and installation for the catalytic oxidation of ammonia
Catalyst gauze (1) for the reduction of the amount of N.sub.2O in an ammonia oxidation process, containing a first layer (2) of woven or knitted first wire material (4), whereby said first wire material (4) is made from Pd or a Pd-rich alloy, whereby said first layer (2) contains a reinforcement in the form of a second wire material (5) which is woven or knitted among the first wire material (4) and which has a different composition than the first wire material (5).
System and method for producing ultra-high molecular weight polyalphaolefins for use as pipeline drag reducing agents
A system is disclosed for producing ultra-high-molecular-weight (UHMW) poly-alpha-olefins (PAO) for use as pipeline drag reducing agents, having improved thermal efficiency and reduced branching of the PAO. The system comprises hinged pairs of shells, each pair of shells comprising a grid of larger hemispherical voids connected by smaller hemicylindrical passages, arranged in a serpentine pattern along the surface area of the shell. When the hinged pairs of shells are shut, they form a pattern of spherical voids which can be connected to an inlet port, which receives a combination of alpha-olefin monomer feedstock and a titanium trichloride catalyst. A reactor chamber houses a plurality of these hinged pairs of shells, which may slide into slots inside the reactor chamber spaced such that each adjacent hinged pair of shells abuts the outer surface of the next when shut and inserted. The reactor chamber is cooled by an inert gas.
ENHANCED EFFICIENCY ENDOTHERMIC REACTOR FOR SYNGAS PRODUCTION WITH FLEXIBLE HEAT RECOVERY TO MEET LOW EXPORT STEAM GENERATION
An apparatus for carrying out endothermic reactions including a plurality of catalytic vessels, immersed in a combustion chamber having a contiguous overlaid convection chamber enclosing a top portion of the catalytic vessels wherein heat is recovered at a lower temperature level from the flue gases from the combustion chamber. The catalytic vessels may contain internal and coaxial heat recovery tubes creating an annular space filled in with a catalytic device. Both the external heat recovery through the catalyst tube outer surface and the internal heat recovery through the inner tube surface can be maximized by an enhanced catalytic device acting also as a heat transfer promoter in the process gas region. The apparatus provides enhanced and flexible heat recovery that permits to meet the request of minimum or none export steam production in one single apparatus, avoiding the need of a pre-reforming section and/or of a convective reformer downstream.
Fiber conduit apparatus for conducting chemical reactions and chemical extractions
A fiber reaction process whereby reactive components contained in immiscible streams are brought into contact to effect chemical reactions and separations. The conduit reactor utilized contains wettable fibers onto which one stream is substantially constrained and a second stream is flowed over to continuously create a new interface there between to efficiently bring about contact of the reactive species and thus promote reactions thereof or extractions thereby. Co-solvents and phase transfer catalysts may be employed to facilitate the process.