A process for preparation of a polymer product comprising the steps of i) feeding an aqueous mixture comprising a monoethylenically unsaturated monomer or a mixture of monoethylenically unsaturated monomers into a first reactor device (2) through at least one inlet; ii) partially polymerizing the monomer or monomers and transferring the polymerizing monomer or mixture of monomers from the inlet to an outlet (3) of the first reactor device (2) to provide a partially polymerized product; iii) flowing the partially polymerized product out of the outlet (3), in which no more than 60% of the monomer or mixture of monomers has been polymerized in the partially polymerized product as it exits the outlet (3) of first reactor device (2), and transferring it to a further reactor device (5), in which the further reactor device (5) has an inlet and an outlet (6);
iv) continuing the polymerization in the further reactor device (5) and removing the polymer product from the outlet (6) of the further reactor device (5),
characterized in that the first reactor device (2) comprises a positive displacement pump.

Pressure processing systems disclosed herein comprise rotating fluid flow paths. Transfer of angular momentum between the working fluid and the fluid flow path may be configured to increase pressure within the system and/or recover energy used to increase pressure within the system. Rotation of pressure processing systems may be configured to alter working fluid pressure within the pressure processing system. Filtration and/or chemical processes may be performed within a pressure processing portion of such systems. Working fluid may be introduced or recovered from the system at various radial positions.

Methods related generally to the removal of atmospheric pollutants from the gas phase, are provided. The methods involve contacting a first stream comprising NO and/or NO.sub.2 with a second stream comprising (ClO.sub.2).sup.0 to provide a third stream comprising NO and NO.sub.2 at a molar ratio of about 1:1; and contacting the third stream with a fourth stream comprising an aqueous metal hydroxide (MOH) solution to convert NO and NO.sub.2 to MNO.sub.2.

Embodiments under the present disclosure include the application of an electric field in a region of liquid undergoing ultra-high shear impact, mixing and or cavitation. The co-location of electrolysis and high shear mixing and or cavitation has demonstrated the ability to cause advanced oxidation reactions and advanced reduction reactions in fluid systems such as water with both dissolved and suspended solids, and hydrocarbon with and without water emulsion.

Methods related generally to the removal of atmospheric pollutants from the gas phase, are provided. The methods involve contacting a first stream comprising NO and/or NO.sub.2 with a second stream comprising (ClO.sub.2).sup.0 to provide a third stream comprising NO and NO.sub.2 at a molar ratio of about 1:1; and contacting the third stream with a fourth stream comprising an aqueous metal hydroxide (MOH) solution to convert NO and NO.sub.2 to MNO.sub.2.

Chemical reactor with high speed rotary mixing, system thereof, and method thereof, for catalytic thermal conversion of organic (hydrocarbon-containing) materials (coal, plastics, rubber, plant matter, wood shavings, biomass, organic wastes) into diesel and other liquid fuels (automobile or/and jet engine fuels). Relevant to non-conventional commercial scale production of liquid fuels, and to commercial scale processing and disposing of organic waste materials. Chemical reactor includes: integrated combination of a reactor stationary assembly (RSA), having only stationary components remaining stationary during chemical reactor operation, and a reactor rotary mixing assembly (RRMA), having only rotatable components rotating during chemical reactor operation. May include anti-abrasion shield for shielding inner surface of reactor central housing from abrasion during chemical reactor operation. Rotor may include a reinforcement disc. Rotor blades or/and reinforcement disc may include rotor-based performance and process control structural features (openings, or/and protrusions, or/and depressions), for additionally controlling performance of the rotor.

Methods related generally to the removal of atmospheric pollutants from the gas phase, are provided. The methods involve contacting a first stream comprising NO and/or NO.sub.2 with a second stream comprising (ClO.sub.2).sup.0 to provide a third stream comprising NO and NO.sub.2 at a molar ratio of about 1:1; and contacting the third stream with a fourth stream comprising an aqueous metal hydroxide (MOH) solution to convert NO and NO.sub.2 to MNO.sub.2.

Systems and methods related to centrifuge energy harvesting chambers (CEHCs) for gas production simulation are provided. Certain CEHCs may include a high-pressure chamber, high-pressure syringe pumps, cooling systems, an actuator and surcharge, backpressure control inside the wellbore, a heating element on the wellbore, water gas separation systems, and flow measurement systems. Certain CEHCs may also provide software operably connected to sensors and instrumentation, comprising a module to continuously, in real-time, periodically, or asynchronously, measure and monitor simulation variables.

An apparatus for production of pulverulent polymers having a reactor for droplet polymerization with an apparatus for dropletization of a monomer solution for the preparation of the polymer. The apparatus for dropletization has holes through which the monomer solution is introduced, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point at the periphery of the reactor and a fluidized bed, wherein at least one of the following is fulfilled: an apparatus for increasing turbulence in the gas flow is disposed in the region of the apparatus for dropletization of the monomer solution, an apparatus for increasing turbulence in the gas flow is disposed in the region of the addition point for the gas, the addition point for gas is configured such that elevated turbulence is generated.
A process for producing pulverulent polymers, in which an increase in flow turbulence in the gas flow in the region of the apparatus for dropletization also is disclosed.

A method and system of using a type of wave rotor to reform a hydrocarbon fluid using pressure waves within the wave rotor to reformulate a hydrocarbon fluid, such as methane or the like, into a lighter hydrocarbon, hydrogen, or, in some instances, hydrogen, partially decomposed hydrocarbon fluid and carbon solids.