Abstract:
The present invention is directed to a combination reactor system for exothermic reactions comprising a trickle-bed reactor and a shell-and-tube reactor. This combination allows the system to efficiently remove heat while also providing the ability to control both the temperature and/or reaction progression. The trickle-bed reactor removes heat efficiently from the system by utilizing latent heat and does not require the use of a cooling or heating medium. The shell-and-tube reactor is used to further progress the reaction and provides a heat exchanger in order to introduce fluid at the desired temperature in the shell-and-tube reactor. Also, additional reactant or reactants and/or other fluids may be introduced to the shell-and-tube section of the reactor under controlled temperature conditions.
Abstract:
The inventing relates to hydrocarbon conversion, and more particularly to catalytically converting alkane in the presence of oxygen released from an oxygen storage material. Conversion products include C2 hydrocarbon, such as C2+ olefin. The hydrocarbon conversion process can be an oxidative coupling reaction, which refers to the catalytic conversion of methane in the presence of oxidant to produce the olefin product. Flow-through reactors can be used to carry out oxygen storage and the oxidative coupling reaction. Reverse-flow reactors are examples of flow-through reactors, which can be used to carry out oxygen storage and the oxidative coupling reaction.
Abstract:
Disclosed are reactors and reaction processes for contacting hydrocarbon reactant in the presence of oxygen stored and released within a thermal mass region of the reactor, and catalytically converting at least a portion of alkane, e.g., methane, in the hydrocarbon reactant to produce a reaction mixture comprising a C5+ composition. Oxygen storage and release for carrying out the catalytic conversion is achieved by including an oxygen storage material in a thermal mass region of the reactor. Flow-through reactors can be used to carry out oxygen storage and the hydrocarbon conversion reactions. Reverse-flow reactors are examples of flow-through reactors, which can be used to carry out oxygen storage and the hydrocarbon conversion reactions.
Abstract:
A reformer reactor is provided for converting hydrocarbon fuel into hydrogen rich gas by auto-thermal reaction process. The reformer reactor has a preferably cylindrically shaped, double wall housing with an inner wall and an outer wall and two side faces, wherein the inner wall and the two side faces form a reaction chamber. Additionally, the inner wall is charged with a first electric charge which prevents the hydrocarbon fuel molecules injected into the reaction chamber by a fuel inlet from hitting the warm inside surfaces of the reaction chamber and burn to soot, subsequently.
Abstract:
An evaporator and a fuel reformer having the same. The evaporator includes a wall arrangement having a circumferential wall and a bottom wall, the circumferential wall and the bottom wall defining (or surrounding) an evaporation chamber; an inlet provided at one side of the evaporation chamber; an outlet formed in the bottom wall; and a barrier at (or surrounding) the outlet and projected from the bottom wall to the inside of the evaporation chamber.
Abstract:
To provide a reformer that uses a relatively inexpensive granular catalyst and can provide a more uniform temperature distribution in a catalyst bed while suppressing increase in the size of the reformer and the required power and size of an auxiliary machine, and a more compact indirect internal reforming high temperature fuel cell while suppressing increase in cost. A reformer that produces a hydrogen-containing gas from a hydrocarbon-based fuel by a steam reforming reaction has a reactor vessel and a reforming catalyst bed packed with a granular catalyst having steam reforming activity in the reactor vessel, the reformer has a partition plate that divides the reforming catalyst bed into at least two sections, the partition plate has a thermal conductivity higher than effective thermal conductivity of the catalyst bed, and the partition plate extends in the reactor vessel from a part which is at a higher temperature in a rated operation to a part which is at a lower temperature in rated operation. An indirect internal reforming high temperature fuel cell has the reformer and a high temperature fuel cell that generates electric power using a hydrogen-containing gas, and the reformer is disposed at a position where the reformer receives thermal radiation from the high temperature fuel cell.
Abstract:
The present invention describes a thin layer fixed bed reactor intended for chemical treatments, in particular reduction of a Fischer-Tropsch synthesis catalyst. The reactor is designed in the form of similar, compact modules and operates with a ratio of linear pressure drop to outlet pressure which falls within certain limits.
Abstract:
The invention relates to a reactor for carrying out reactions having a high enthalpy change containing catalyst particles between cooled dividing walls. According to the invention, the cooled dividing walls are formed by metal plates/metallic components in which hollow or intermediate spaces in the form of channels are provided in the metal plates/components for accommodating and conveying a cooling medium so as to cool the reactor. The reactor can be used for carrying out strongly exothermic catalytic reactions, for example for the selective hydrogenation of acetylene to ethylene.
Abstract:
An arrangement for generating hydrogen gas utilizes differential pressure to transport fuel and spent fuel components without requiring an electrically powered fuel delivery pump.
Abstract:
An apparatus for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium amid simultaneous exchange of catalyst particles by an operation that sequentially restricts reactant flow while moving catalyst through reaction stacks in which the reactant flow has been restricted. The apparatus permits a change out of catalyst in a channel type reactor arrangement that would normally restrict catalyst flow during operation. Moving catalyst through a heat exchange type reactor having reactant and heat exchange channels permits control of catalyst activity as well as temperatures.