Disclosed is a solution polymerization process, or, alternatively, a method of delivering powder catalysts to a solution polymerization reactor, comprising combining a homogeneous single-site catalyst precursor with -olefin monomers to form a polyolefin, wherein the homogeneous single-site catalyst precursor is in the form of (i) a dry powder, (ii) suspended in a aliphatic hydrocarbon solvent, or (iii) suspended in an oil or wax, wherein the homogeneous single-site catalyst precursor is at a concentration greater than 0.8 mmole/liter when suspended in the aliphatic hydrocarbon solvent prior to entering the solution polymerization reactor.

Disclosed is a solution polymerization process, or, alternatively, a method of delivering powder catalysts to a solution polymerization reactor, comprising combining a homogeneous single-site catalyst precursor with -olefin monomers to form a polyolefin, wherein the homogeneous single-site catalyst precursor is in the form of (i) a dry powder, (ii) suspended in a aliphatic hydrocarbon solvent, or (iii) suspended in an oil or wax, wherein the homogeneous single-site catalyst precursor is at a concentration greater than 0.8 mmole/liter when suspended in the aliphatic hydrocarbon solvent prior to entering the solution polymerization reactor.

A hopper including a buffer compartment defined by side walls, a top end including an opening for receiving solid particles, and a bottom end including an opening for dispensing the solid particles from the buffer compartment. The buffer compartment includes a plurality of essentially vertically positioned cooling plate-like elements for cooling the solid particles in the buffer compartment. A system including hopper, methods of operating the hopper or system, and production of solid particles.

The present invention provides a char collector (1) for a pyrolysis system (2), the pyrolysis system (2) featuring a pyrolysis reactor (17) comprising a hot char outlet (3), the char collector comprises a container (4) and a longitudinal char conveyor unit (5), and the container (4) comprises a chamber (6), a first inlet (7) connectable to the hot char outlet (3) and a first outlet (8), wherein the first inlet (7) is arranged in an upper portion of the chamber (6) and the first outlet (8) is arranged in a lower portion of the chamber (6); and the char conveyor unit (5) comprises a first end section (9) connected to the first outlet (8), a second end section (10) featuring a second outlet (11) for cooled char and a conveying mechanism (12) configured to transport char from the first end section (9) to the second outlet (11) during use; wherein the second outlet (11) is at a level above the first outlet (8), such that a gas trap is formed between the first inlet (7) and the second outlet (11) when the chamber (6) is filled with water up to a level above the first outlet (8) during use.

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.

A reactor for coating particles includes one or more motors, a rotary vacuum chamber configured to hold particles to be coated, wherein the rotary vacuum chamber is coupled to the motors, a controller configured to cause the motors to rotate the rotary vacuum chamber about an axial axis of the rotary vacuum chamber such that the particles undergo tumbling agitation, a vacuum port to exhaust gas from the rotary vacuum chamber, a paddle assembly including a rotatable drive shaft extending through the rotary vacuum chamber and coupled to the motors and at least one paddle extending radially from the drive shaft, such that rotation of the drive shaft by the motors orbits the paddle about the drive shaft in a second direction, and a chemical delivery system including a gas outlet on the paddle configured inject process gas into the particles.

A reactor for coating particles includes one or more motors, a rotary vacuum chamber configured to hold particles to be coated and coupled to the motors, a controller configured to cause the motors to rotate the chamber in a first direction about an axial axis at a rotation speed sufficient to force the particles to be centrifuged against an inner diameter of the chamber, a vacuum port to exhaust gas from the rotary vacuum chamber, a paddle assembly including a rotatable drive shaft extending through the chamber and coupled to the motors and at least one paddle extending radially from the drive shaft, such that rotation of the drive shaft by the motors orbits the paddle about the drive shaft in a second direction, and a chemical delivery system including a gas outlet on the paddle configured inject process gas into the particles.

A control valve (10) includes a valve body with a plurality of ports (A, B, C, D, E, F) and a plurality of annular flow passages (53, 55, 57). A piston (34) which includes a plurality of annular flow passages and a longitudinal flow passage is selectively movable within a bore (32) within the valve body through operation of a valve controller (70). The valve controller is selectively operative to control the position of the piston so as to enable liquid flow through a plurality of flow paths. The valve controller further includes a installable and removable valve controller housing (74) which is releasably engageable with a valve base (72). The valve may include a changeable piston and changeable injector and plug components to adapt the valve to different flow and fluid mixing requirements.

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.

Described herein are systems and methods for delivering catalyst to a reaction vessel. The methods include the use of a positive displacement reciprocating piston system having a catalyst delivery housing that contains a piston system. The piston system includes a top section, a bottom section, and a catalyst holding space between the top and bottom section such that the piston system is movable between a first and a second position to inject catalyst from the catalyst holding space into the reaction vessel when the piston system is in the second position and fill the catalyst holding space with catalyst from a catalyst feed supply when the piston system is in the first position.