Bubble column reactor assembly (100) is provided, the assembly comprising: a reactor vessel (104) comprising a bottom end and a top end; a pre-distributor plate (150) disposed above the bottom end of the reactor vessel (104) to distribute gas in a liquid, the plate comprising a bottom surface facing the bottom end of the reactor vessel (104) and a top surface opposite to the bottom surface. The pre-distributor plate (150) comprises a plurality of perforations (206), each perforation (206) comprising: a duct (170) projecting from the bottom surface of the pre-distributor plate; and a cap (180) enclosing the duct (170) and the perforation (206). The cap (180) comprises a plurality of openings (210). A gas distributor (110) is disposed below the pre-distributor plate (150) to receive gas and inject gas into the liquid prior to distribution of gas and the liquid by the pre-distributor plate (150).

A reactor (12) and method for the conversion of hydrocarbons utilizes a reactor (12) having a unique feed assembly (56) that creates an inwardly spiraling fluid flow pattern of the feed gases to form a swirling gas mixture that passes through a conduit (46) with a constricted neck portion or nozzle (52). At least a portion of the swirling gas mixture forms a thin, annular mixed gas flow layer immediately adjacent to the conduit (46). A portion of the swirling gas mixture is combusted as the swirling gas mixture passes through the conduit (46) for conversion of hydrocarbons.

A polymerization apparatus for performing anionic polymerization includes: a raw material container that contains a raw material; a reaction container that is connected to the raw material container via a raw material supply pipe and causes anionic polymerization of the raw material supplied; and a switching valve that is provided in the raw material supply pipe and opens and closes the raw material supply pipe, and the raw material supply pipe includes a joint portion sealed by using a metal gasket, and the switching valve is a gas valve.

Improved two phase chemical reactions (liquid-liquid or liquid-gas) are provided by forming microdroplets of either or both liquid reagents and configuring the reaction as a collision between the microdroplet reagent and the other reagent. We have found that this approach can provide high reaction yields in short times (<1 s) without the use of a phase transfer catalyst.

An apparatus and a method for mixing and atomizing a hydrocarbon stream is disclosed. The apparatus comprises of an inner conduit having a first inlet for receiving the hydrocarbon stream, and a second inlet for receiving a primary dispersion stream. The inner conduit produces a primary mixture comprising the hydrocarbon stream and the primary dispersion stream. The apparatus further includes an outer conduit having a third inlet for receiving a secondary dispersion stream. Further, said inner and outer conduits together define an annular passage. The distal end of the annular passage defines a second set of orifices for allowing the secondary dispersion stream flowing there-through to come in contact with the primary mixture and thereby dispensing the secondary mixture so obtained through an outlet.

A method of controlling a chemical reaction is disclosed. The method may include feeding a solution at a first flow rate into a reactor and detecting a sound in the reactor using a sound sensor that is adjacent to the reactor. The sound sensor may convert the sound into a sound signal. After the sound signal is acquired, it is compared to a stored sound signal or a stored sound threshold to detect a reaction event. The method may include adjusting the flow rate of solutions into the reactor in response to the reaction event.

The present invention relates to a distribution system and an item of equipment for treatment of solid material that comprises same, wherein said distribution system comprises a means for transmitting movement that is configured to generate a rotating movement; a distribution element comprising a surface parallel to the feeding means on which at least one rod is arranged, perpendicularly, configured to come into contact with the solid material to be treated; a rotating means which connects the means for transmitting movement to the distribution element, configured to generate a rocking or circular movement; and a means for supporting the distribution element; wherein a first end of the distribution element comprises a means for joining to the rotating means, situated on an axis eccentric to the axis of rotation of said rotating means, and a second end, opposite to the first end, is accommodated on the supporting means.

The present invention refers, in its generality, to a tubular reactor for homo or copolymerization of olefins, with one of more initiator injection devices. The invention also refers to an initiator device in a process fluid stream in a reactor polymerization reactor, and to a process for the production of polymers and copolymers of ethylene, particularly low density polymers (LDPE), that use the said device.

A manufacturing system and method for recycling and smelting crushed silica from silicon plants, including a crushed silica storage device, granulator, submerged arc furnace, transfer device, forming device and cooling system. Firstly silicon waste is collected, then crushed silica is output to a granulator. The granulator mixes the waste irregular crushed silica with water, and granulates and produces small particles having an uniform grain size as the raw material for smelting. The raw material is smelted in the submerged arc furnace. The forming device evenly pours the silicon liquid into the cooling system according to a set flow rate. The silicon liquid is solidified to form silicon pellets, and then a lift system is used to lift the formed silicon pellets, wherein the silicon liquid poured into the cooling system has a uniform diameter. The system can rapidly and efficiently smelt the silicon waste from the silicon plants.

The present disclosure relates to hydrogenation reactions of different fractions in oil refining. It also relates to a process device applicable thereto for hydrogenation of various feedstocks, such as arrangements during campaign changes.