Abstract:
The present technology discloses apparatus, systems, and methods for the thermal decomposition of carbonaceous feedstocks through continuous pyrolysis. A reciprocating reactor is disclosed that includes an inner reactor pipe and an outer reactor pipe. The outer reactor pipe has a first portion that surrounds the inner reactor pipe forming an annulus space, and a second portion that extends beyond the inner reactor pipe and forms a turnaround zone. The inner reactor pipe defines an inner reactor zone that produces partially reacted carbonaceous feedstock, and the annulus space defines an outer reactor zone that produces product gases and solids.
Abstract:
Method for the manufacture of carbon nanotubes by thermal decomposition of at least one gaseous hydrocarbon (14) in the presence of a solid catalyst in a reactor (4) into which the catalyst is introduced via an inlet lock chamber (17) flushed by an inert gas (21, 22, 25, 26) and from which the carbon nanotubes are withdrawn via an outlet lock chamber (37) which is flushed with a flow of inert gas (39, 40).
Abstract:
Herein disclosed is an apparatus, which comprises (1) a first cylindrical, porous, catalytic rotor symmetrically positioned about an axis of rotation and surrounding a first interior space; wherein the first porous catalytic rotor comprises a first catalyst; (2) an outer casing, wherein the outer casing and the rotor are separated by an annular space; (3) a motor configured for rotating the rotor about the axis of rotation; (4) a feed inlet line; and (5) a first outlet line, wherein the first outlet line is fluidly connected with the annular space. Herein disclosed is also a method comprising: (1) passing a feed gas comprising at least one gaseous reactant through a porous, catalytic rotor, wherein the porous, catalytic rotor is permeable to the at least one gaseous reactant and is made from or contains a catalyst effective for catalyzing a first reaction; and (2) extracting a first desired product.
Abstract:
A method for pretreating a biomass, in which a water-reactive anhydride contacts a biomass, is disclosed. The biomass is pretreated using internal heating by an exothermic reaction. Further, an apparatus for pretreating a biomass having a reaction part including an inlet part and an outlet part for the water-reactive anhydride is disclosed.
Abstract:
A continuous process and related system for producing high purity silica are disclosed. The process and system utilize a unique high temperature rotary reactor which excludes oxygen. The use of one or more anoxic gases is described, that upon administration into the system promote the exclusion of oxygen.
Abstract:
The invention relates to a reactor system and process for the catalytic polymerization of olefin monomer and optionally comonomer(s), having one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles. The reactor system has at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit has means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for displacing metered quantities of polymerized particles from the moving bed unit into the fluidized bed unit, and to the use of such reactor system.
Abstract:
Herein disclosed is an apparatus, which comprises (1) a first cylindrical, porous, catalytic rotor symmetrically positioned about an axis of rotation and surrounding a first interior space; wherein the first porous catalytic rotor comprises a first catalyst; (2) an outer casing, wherein the outer casing and the rotor are separated by an annular space; (3) a motor configured for rotating the rotor about the axis of rotation; (4) a feed inlet line; and (5) a first outlet line, wherein the first outlet line is fluidly connected with the annular space. Herein disclosed is also a method comprising: (1) passing a feed gas comprising at least one gaseous reactant through a porous, catalytic rotor, wherein the porous, catalytic rotor is permeable to the at least one gaseous reactant and is made from or contains a catalyst effective for catalyzing a first reaction; and (2) extracting a first desired product.
Abstract:
The disclosed apparatus includes a stator and a rotor disposed for rotation within the stator. An inner wall of the stator defines one or more collider chambers. Rotation of the rotor causes movement of fluid disposed between the rotor and stator and establishes a rotational flow pattern within the collider chambers. The fluid movement induced by the rotor increases the temperature, density, and pressure of the fluid in the collider chamber.
Abstract:
The invention relates to a method and device for dissolving solid bodies with a liquid, in particular for bringing solid bodies of different shapes and sizes, but mainly very course bodies, in contact with liquids, in order to dissolve them by a chemical reaction or dispersion. The device comprises a closed container (1) that is partially filled with the liquid and into which the solid bodies are introduced before being received inside the container (1) into a basket (2) that is movable relative to the container (1), and the solid bodies inside the basket (2) are brought into contact with the liquid. For the solid bodies to be introduced more easily, quickly and also more uniformly into the basket inside the container (1), in order to be dissolved, the basket (2) is suspended inside the container (1) in an oscillating manner, such that it can be moved back and forth, after it is filled with a bulk load of solid bodies, in alternating directions of rotation relative to the container (1).
Abstract:
The microwave spent catalyst decoking method is a method for regenerating petrochemical catalysts by removing coke deposited in the catalyst using a 2.45 GHz microwave oven. The spent catalyst is heated in air or pure oxygen in the presence of a susceptor. The susceptor is made of silicon carbide-based composite material that absorbs 2.45 GHz microwave energy fast and efficiently. In one embodiment, the susceptor material is formed into pellets that are preferably four to five millimeters in diameter. The susceptor pellets are mixed with the spent catalyst and loaded into a thermally shielded refractory tube that rotates about its central axis. In a another embodiment, the apparatus is a thermally shielded tower or vertical tube made of refractory material that is transparent to microwave radiation and supports rows of susceptor rods that are aligned horizontally.