Methods for determining ethylene concentration in an ethylene oligomerization reactor using an ultrasonic flow meter are described, and these methods are integrated into ethylene oligomerization processes and related oligomerization reactor systems.

Methods for determining ethylene concentration in an ethylene oligomerization reactor using an ultrasonic flow meter are described, and these methods are integrated into ethylene oligomerization processes and related oligomerization reactor systems.

According to one aspect of the invention, a catalyst tower is provided, which comprises a gas inlet and a catalyst holding plate set therein. The gas inlet is the opening where the catalyst tower and the upstream piping connects with one another. The distance between the gas inlet and the catalyst holding plate is directly proportional to the difference in diameter between the catalyst tower and the upstream piping.

According to one aspect of the invention, a catalyst tower is provided, which comprises a gas inlet and a catalyst holding plate set therein. The gas inlet is the opening where the catalyst tower and the upstream piping connects with one another. The distance between the gas inlet and the catalyst holding plate is directly proportional to the difference in diameter between the catalyst tower and the upstream piping.

A process and apparatus wherein a process material comprising two or more distinct phases are fed continuously to a tubular reactor containing an agitator wherein as the phases flow along the reactor the agitator displaces at least part of a first phase from its natural position to within a second phase where it is distributed within the second phase by the agitator and the agitator is designed to allow the first phase that is distributed within the second phase to flow naturally back towards its natural distinct position within the reactor as the phases pass through the reactor, useful for mixing and/or reacting liquid/liquid; gas/gas and liquid/gas mixtures as well as solid liquid mixtures.

A material processing system includes a barrel line comprising one or more processing stations, wherein each processing station comprises a reservoir configured to hold a processing fluid, and a barrel assembly arranged within a first station of the barrel line, wherein the barrel assembly comprises a cylinder configured to receive material to be processed. The cylinder includes a first end surface, a second end surface, and a sidewall that extends therebetween, wherein the sidewall defines an opening therein configured to receive the material, and wherein at least one of the first end surface and the second end surface is perforated, and an inner wall configured to maintain the material within the cylinder when the cylinder rotates along a central axis in a first direction and to allow the material to exit the opening when the cylinder rotates along the central axis in an opposite direction.

A material processing system includes a barrel line comprising one or more processing stations, wherein each processing station comprises a reservoir configured to hold a processing fluid, and a barrel assembly arranged within a first station of the barrel line, wherein the barrel assembly comprises a cylinder configured to receive material to be processed. The cylinder includes a first end surface, a second end surface, and a sidewall that extends therebetween, wherein the sidewall defines an opening therein configured to receive the material, and wherein at least one of the first end surface and the second end surface is perforated, and an inner wall configured to maintain the material within the cylinder when the cylinder rotates along a central axis in a first direction and to allow the material to exit the opening when the cylinder rotates along the central axis in an opposite direction.

Mechanical stirred bed reactors that incorporate a screen are described. Methods of using such reactors to process perfluoropolymers to form perfluorinated olefin monomers are also described. The reactors and methods may be used to upcycle filled perfluorinated materials.

Mechanical stirred bed reactors that incorporate a screen are described. Methods of using such reactors to process perfluoropolymers to form perfluorinated olefin monomers are also described. The reactors and methods may be used to upcycle filled perfluorinated materials.

A catalyst structure includes a porous support structure, where the support structure includes an aluminosilicate material and any two or more metals loaded in the porous support structure selected from Ga, Ag, Mo, Zn, Co and Ce. The catalyst structure is used in a hydrocarbon upgrading process that is conducted in the presence of methane, nitrogen or hydrogen.