An exhaust gas system includes an engine-turbine exhaust gas conduit, a turbocharger, a turbine-housing exhaust gas conduit, an injection housing, a dosing module, and a bypass system. The engine-turbine exhaust gas conduit is configured to receive exhaust gas. The turbocharger includes a turbine. The turbine is coupled to the engine-turbine exhaust gas conduit. The turbine-housing exhaust gas conduit is coupled to the turbine. The injection housing is coupled to the turbine-housing exhaust gas conduit and centered on an injection housing axis. The dosing module is coupled to the injection housing and includes an injector. The injector is configured to dose reductant into the injection housing. The injector is centered on an injector axis. The bypass system includes a bypass inlet conduit, a bypass valve, and a bypass outlet conduit. The bypass inlet conduit is coupled to the engine-turbine exhaust gas conduit.

A reactor for coating particles includes a stationary vacuum chamber to hold a bed of particles to be coated, a vacuum port in an upper portion of the chamber, a chemical delivery system configured to inject a reactant or precursor gas into a lower portion of the chamber, a paddle assembly, and a motor to rotate a drive shaft of the paddle assembly. The lower portion of the chamber forms a half-cylinder. The paddle assembly includes a rotatable drive shaft extending through the chamber along the axial axis of the half cylinder, and a plurality of paddles extending radially from the drive shaft such that rotation of the drive shaft by the motor orbits the plurality of paddles about the drive shaft.

A reactor for coating particles includes a stationary vacuum chamber to hold a bed of particles to be coated, a vacuum port in an upper portion of the chamber, a chemical delivery system configured to inject a reactant or precursor gas into a lower portion of the chamber, a paddle assembly, and a motor to rotate a drive shaft of the paddle assembly. The lower portion of the chamber forms a half-cylinder. The paddle assembly includes a rotatable drive shaft extending through the chamber along the axial axis of the half cylinder, and a plurality of paddles extending radially from the drive shaft such that rotation of the drive shaft by the motor orbits the plurality of paddles about the drive shaft.

A sample container for use in determining a dietary fiber content of a food sample may include a chamber having a first end, an opposing second end, and a side-wall connecting the first end to the second end. The side-wall may include a rigid, non-porous material. The sample container may include a porous filter located at the second end of the chamber. The sample container may include an integral stirrer located within the chamber.

A mini mixer system includes a mixer, for executing a continuous mixing operation for an extended period of time, the mixing operation includes a mixing production process with corrosiveness, high viscosity and high mixing risks. The mixer includes a motor, a coupling and torsion meter, a reduction gear, a plurality of couplings, a frame group, a gear box group, at least one mixing element, a mixing can and a lifting mechanism group. The motor, the coupling and torsion meter and the reduction gear are connected to one another by the couplings. The reduction gear is connected to the gear box group by the coupling. The motor, the reduction gear, the gear box group and the lifting mechanism group are all fixed on the frame group. The mixer is assembled in a gear mechanism of the gear box group. The mixing can is disposed on the lifting mechanism group.

A mini mixer system includes a mixer, for executing a continuous mixing operation for an extended period of time, the mixing operation includes a mixing production process with corrosiveness, high viscosity and high mixing risks. The mixer includes a motor, a coupling and torsion meter, a reduction gear, a plurality of couplings, a frame group, a gear box group, at least one mixing element, a mixing can and a lifting mechanism group. The motor, the coupling and torsion meter and the reduction gear are connected to one another by the couplings. The reduction gear is connected to the gear box group by the coupling. The motor, the reduction gear, the gear box group and the lifting mechanism group are all fixed on the frame group. The mixer is assembled in a gear mechanism of the gear box group. The mixing can is disposed on the lifting mechanism group.

An all-in-one mobile wellsite service unit for providing equipment and services at an oil and gas well related to well abandonment is provided. The mobile unit comprises a water storage tank, at least one cement mixing barrel for mixing a cement slurry, a progressive cavity pump for pumping the cement slurry, and a hydraulic hose for connecting to a hydraulic power source to provide power to the cement mixing barrel and the progressive cavity pump. The mobile unit may also contain downhole tools needed for well abandonment, including a well cleaning tool, a cementing tool, a hydraulic packer, and more.

An all-in-one mobile wellsite service unit for providing equipment and services at an oil and gas well related to well abandonment is provided. The mobile unit comprises a water storage tank, at least one cement mixing barrel for mixing a cement slurry, a progressive cavity pump for pumping the cement slurry, and a hydraulic hose for connecting to a hydraulic power source to provide power to the cement mixing barrel and the progressive cavity pump. The mobile unit may also contain downhole tools needed for well abandonment, including a well cleaning tool, a cementing tool, a hydraulic packer, and more.

A method for crystallizing calcium nitrate from an aqueous calcium nitrate composition including from 6 to 12 weight % nitric acid, from 11 to 17 weight % phosphoric acid, and from 36 to 49 weight % dissolved calcium nitrate, which aqueous composition is optionally directly obtainable from digesting phosphate rock in nitric acid. The method includes filling at least one vertical crystallizing tank through an inlet with the aqueous calcium nitrate composition. The crystallizing tank includes a vertical cylindrical section, a first inlet, a first outlet, a second inlet, three concentric banks of cooling coils, an agitator, and a temperature measurement device. The method includes circulating through the banks of cooling coils a cooling fluid, having an initial temperature ranging from −40° C. to −5° C., and rotating the agitator such that a minimum average heat transfer of 400 W/m.sup.2.Math.K is achieved on the cooling coil the most distant from the agitator.

A method for crystallizing calcium nitrate from an aqueous calcium nitrate composition including from 6 to 12 weight % nitric acid, from 11 to 17 weight % phosphoric acid, and from 36 to 49 weight % dissolved calcium nitrate, which aqueous composition is optionally directly obtainable from digesting phosphate rock in nitric acid. The method includes filling at least one vertical crystallizing tank through an inlet with the aqueous calcium nitrate composition. The crystallizing tank includes a vertical cylindrical section, a first inlet, a first outlet, a second inlet, three concentric banks of cooling coils, an agitator, and a temperature measurement device. The method includes circulating through the banks of cooling coils a cooling fluid, having an initial temperature ranging from −40° C. to −5° C., and rotating the agitator such that a minimum average heat transfer of 400 W/m.sup.2.Math.K is achieved on the cooling coil the most distant from the agitator.