A system for promoting endothermic conversions includes a first and second portion, a first and second supply, a first outlet, and a heat exchanger. The first portion defines a first inner volume containing an oxygen transfer agent. The first supply contains a reducing agent and is fluidly connected to the first inner volume. The first outlet conveys one or more of carbon dioxide, water, and an unsaturated hydrocarbon from the first inner volume. The second portion and the heat exchanger positioned within the second portion define a second inner volume containing reduced oxygen transfer agent. The second supply contains an oxidizing agent fluidly connected to the second inner volume. The heat exchanger also defines a third inner volume segregated from the second inner volume, and the heat exchanger is configured to transfer heat resulting from the oxidation of the reduced oxygen transfer agent to the third inner volume.

A reactor (1) delimited by a shell (2) extending along a vertical axis: a vessel provided with a reaction zone (10) containing a bed of catalyst; at least one inlet (3) for a gaseous feed; at least one outlet (4) for a gaseous effluent produced in the reaction zone (10),
inside the reaction zone (10), at least two tubes extending substantially vertically over the height of the reaction zone, the tubes being permeable to a gas phase and impermeable to catalyst, each tube (9) having an upper end (11) in communication with the inlet for the feed or with the outlet means for an effluent and an opposed second end (12), the tubes (9, 24) supported at their upper end by a first plate (14) which is secured to the shell (2), via a connection assembly providing a pivot and slide type connection.

A gas-liquid-solid three-phase slurry bed industrial reactor capable of achieving continuous operation comprises an inlet gas distribution component composed of a false bottom and inlet gas distribution tubes, one or more layers of heat exchange tube components used for heating/cooling the bed, one or more layers of liquid-solid separator components capable of being cleaned automatically, an outlet gas-liquid-solid entrainment separation component located in the upper portion of the interior of the reactor and used for removing liquid foam and solid entrainments, a plurality of layers of solid concentration uniform distribution devices used for reducing the catalyst concentration gradient and the inlet-outlet temperature difference of the reactor, a flow guiding device located on a component support beam and used for preventing catalyst accumulation, and auxiliary systems including a filter-backflush system and a washing system. Compared with the prior art, the reactor is low in energy consumption and solves the problems of blockage, backflow and dead zones, the temperature and liquid level are well controlled, catalysts can be easily added and discharged online, and stable and continuous operation of the reactor is achieved. The reactor is suitable for being applied to the Fischer-Tropsch synthesis process on an industrial scale.

A method for flue gas denotation includes the step of, in the presence of ammonia, enabling flue gas in a denitration reactor to pass through a plurality of catalyst beds from the bottom to the top to participate in a denitration reaction. Each catalyst bed contains a catalyst support component and a granular denitration catalyst stacked on the catalyst support component, and, in every single catalyst bed, the granular denitration catalyst moves along a same direction on the catalyst support component. Between every two adjacent catalyst beds, the granular denitration catalyst falls from the tail of a previous catalyst support component to the head of a next catalyst support component, making the granular denitration catalyst travel along the catalyst support components reciprocatively.

Systems and processes are disclosed for producing petrochemical products, such as ethylene, propene and other olefins from crude oil in high severity fluid catalytic cracking (HSFCC) units. Processes include separating a crude oil into a light fraction and a heavy fraction, cracking the light fraction and heavy fraction in separation cracking reaction zones, and regenerating the cracking catalysts in a two-zone regenerator having a first regeneration zone for the first catalyst (heavy fraction) and a second regeneration zone for the second catalyst (light fraction) separate from the first regeneration zone. Flue gas from the first catalyst regeneration zone is passed to the second regeneration zone to provide additional heat to raise the temperature of the second catalyst of the light fraction side. The disclosed systems and processes enable different catalysts and operating conditions to be utilized for the light fraction and the heavy fraction of a crude oil feed.

An olefin polymerization reactor capable of efficiently removing heat of reaction and having excellent energy saving properties is described. The olefin polymerization reactor includes a tubular powder container forming a moving bed in which powder moves downward by gravity, and including a plurality of intermediate openings provided spaced apart from each other in a vertical direction, a gas container that accommodates gas discharged from the plurality of intermediate openings, a powder feed pipe that feeds, to an upper portion of the tubular powder container, polyolefin powder and/or slurry containing polyolefin powder and olefin monomer liquid, a liquid feed pipe that feeds olefin monomer liquid to an inside of the tubular powder container, and a gas discharge pipe that discharges olefin monomer gas from the gas container to outside.

Multiphase separators, processes and systems for converting an oxygenate and/or olefin feedstock to a hydrocarbon product are described herein.

A system for promoting endothermic conversions includes a first and a second portion, a first and second supply, a first outlet and a heat exchanger. The first portion defines a first inner volume containing an oxygen transfer agent. The first supply contains one or more of hydrogen and a saturated hydrocarbon and is fluidly connected to the first inner volume. The first outlet conveys one or more of carbon dioxide, water, and an unsaturated hydrocarbon from the first inner volume. The second portion and the heat exchanger positioned within the second portion define a second inner volume containing reduced oxygen transfer agent. The second supply contains an oxidizing agent fluidly connected to the second inner volume. The heat exchanger also defines a third inner volume segregated from the second inner volume, and the heat exchanger is configured to transfer heat resulting from the oxidation of the reduced oxygen transfer agent to the third inner volume.

Provided is a method for continuous production of zeolite in which a starting material is continuously supplied to a tubular reactor to produce an aluminophosphate zeolite that contains, in the framework structure, at least aluminum atoms and phosphorus atoms or an aluminosilicate zeolite having 5SiO.sub.2/Al.sub.2O.sub.32000. The tubular reactor is heated using a heat medium; a ratio (volume)/(lateral surface area) of the volume (inner capacity) to the lateral surface area of the tubular reactor is 0.75 cm or smaller; and seed crystals are added to the starting material. Through using a small-diameter tubular reactor and heating with a heat medium, it becomes possible to heat sufficiently the entirety of a starting material (zeolite precursor gel) in a short time, and to allow reaction to proceed at a high rate. The occurrence of irregular pressure fluctuations during continuous production of the zeolite can be prevented by adding seed crystals.

A Traveling Wave Reactor (TWR) includes an inner microwave-transparent tube including an inlet and an outlet; an outer resonant tube surrounding a section of the microwave-transparent tube; a microwave source operable to provide microwave radiation to the resonant tube, wherein the microwave radiation creates a traveling microwave field in the resonant tube; and a tube rotator operable to rotate the microwave-transparent tube. A method for H.sub.2S treatment includes introducing a gas comprising H.sub.2S into a Traveling Wave Reactor (TWR), wherein the TWR includes a microwave source and a microwave-transparent tube including a catalyst bed; contacting the gas with the catalyst bed; and irradiating the catalyst bed with microwaves emitted by the microwave source, thereby activating a conversion of H.sub.2S.