A reaction column comprises a plurality of cells each of which has a lower cell portion and an upper cell portion. The cells are arranged sequentially, from an uppermost cell to a lowermost cell. The fuel inlet is configured to direct fluid through the reaction column from a lower cell portion of the lowermost cell to an upper cell portion of the uppermost cell, and out of the fuel outlet. The reagent inlet is configured to direct reagent through the reaction column from the upper cell portion of the uppermost cell to the lower cell portion of the lowermost cell. The plurality of cells may be vertically or horizontally positioned, as well as inclined and the like. Systems and methods are likewise disclosed.

A reactor system for high temperature reactions of reactants includes at least one reactant containing carbon. The reactor includes a reactor, a liquid media disposed within the reactor, and a solid carbon reaction product. The liquid media does not react irreversibly with the reactant to form products, and the liquid media wets at least a portion of a surface within the reactor. The solid carbon reaction product does not contact at least the portion of the surface within the reactor where the liquid media wets the portion of the surface within the reactor.

A process for producing light olefins from inferior oils includes the steps of: subjecting an inferior oil to a thermal conversion reaction in the presence of hydrogen to obtain a conversion product; separating the conversion product to obtain a first separated product; separating the first separated product to obtain an upgraded oil and a pitch; subjecting the upgraded oil to hydro-upgrading to obtain a hydro-upgraded oil; separating the hydro-upgraded oil to obtain a hydro-upgraded heavy oil; and subjecting the hydro-upgraded heavy oil to catalytic cracking to obtain a catalytic cracking product comprising a light olefin.

Reactor for the synthesis of melamine from urea, in accordance with the high-pressure non-catalytic process, comprising: a vertical reactor body (1), at least one inlet (2) for the urea melt, a set of heating elements (3), and a central duct (7), said set of heating elements (3) being arranged inside said central duct.

The present invention relates to a gas/liquid reactor for the oligomerization of gaseous ethylene, comprising a central pipe which delimits inside the reactor chamber a central zone allowing a descending flow and an outer zone allowing an ascending flow, thus making it possible to increase the time of travel of the injected gas bubbles in the liquid phase, without increasing the volume of the liquid phase and thus the volume of the reactor.

Methods for controlling the productivity of an olefin polymer in a polymerization reactor system using a halogenated hydrocarbon compound are disclosed. The productivity of the polymer can be increased via the addition of the halogenated hydrocarbon compound.

There is provided a system for sludge treatment, which system is arranged in a container adapted to be transported by a truck and comprises: a sludge inlet for receiving a sludge; a reactor comprising an electrical heating arrangement for heat treatment of the sludge, which reactor is arranged downstream the sludge inlet; a flashing arrangement for cooling sludge treated in the reactor and providing at least one steam fraction, which flashing arrangement is arranged downstream the reactor; a steam routing arrangement capable of routing the at least one steam fraction from the flashing arrangement to preheat sludge transported from the sludge inlet to the reactor; and a separation arrangement for separating the cooled sludge from the flashing arrangement into a first fraction and a second fraction, wherein the suspended solids content is higher in the first fraction than in the second fraction. A corresponding method is also provided.

A method and device for lightening heavy oil by utilizing a suspension-bed hydrogenation process are provided. In the process, a part of a raw oil is mixed with a suspension-bed hydrocracking catalyst to form a first mixture, then the first mixture is subjected to first shear and second shear in sequence so as to realize high dispersion and mixing of the catalyst and the raw oil; through pretreatment of the raw oil, the device can prevent the raw oil from coking in the hydrogenation process; through the adoption of a suspension-bed reactor with a liquid phase self-circulation function or a cold-wall function; and light and heavy components are separated from the suspension-bed hydrogenated product in advance and only medium component is subjected to fixed-bed hydrogenation, thereby reducing the load of the fixed-bed hydrogenation, prolonging the service life of the fixed-bed catalyst, improving the yield and quality of gasoline and diesel, and being beneficial for energy conservation and emission reduction of the whole system.

Methods for controlling the productivity of an olefin polymer in a polymerization reactor system using a halogenated hydrocarbon compound are disclosed. The productivity of the polymer can be increased via the addition of the halogenated hydrocarbon compound.

The invention relates to a system for the continuous polymerization of -olefin monomers comprising a reactor, a compressor, a cooling unit and an external pipe, wherein the reactor comprises a first outlet for a top recycle stream, wherein the system comprises apparatus, wherein the reactor comprises a first inlet for receiving a bottom recycle stream, wherein the reactor comprises an integral separator, wherein the first inlet of the integral separator is connected to a first outlet, wherein the first outlet for the liquid phase is connected to the second outlet of the reactor for the liquid phase, wherein the external pipe comprises a second inlet for receiving a solid polymerization catalyst, wherein the first outlet of the external pipe is connected to a second inlet of the reactor, wherein the reactor comprises a third outlet, wherein the system comprises a first inlet for receiving a feed.