A mobile mechanical vapor recompression evaporator system including a horizontal vapor separator and a horizontal forced circulation heat exchanger. The horizontal vapor separator can include a generally cylindrical housing configured in a generally horizontal orientation. The housing can include at least one product chamber having at least one product passage configured to receive at least one product. The housing further includes at least one vapor chamber having at least one vapor passage and at least one vapor window located between the at least one product chamber and the at least one vapor chamber, wherein a portion of the at least one product evaporates in the product chamber to produce a vapor that passes through the at least one vapor window into the at least one vapor chamber, and is discharged through the at least one vapor passage.

An accelerated vapor recompression apparatus 10 converts incoming flow 35a to a concentrate 35c by developing a concentration profile 146 within a tank 30 holding a liquid 23 containing dissolved solids. The resulting curve 160 of saturation temperature of the stratified liquid 23 (such as a brine 23 or other material 23) moves away from the curve 162 corresponding to fully mixed conditions. The shift 174, 180 in saturation temperature results in increased boiling without increased energy from a heater 70 or compressor 50. A method 90, 200 of control of the system provides interventions 203, 204, 205, 206 at different levels 92, 94, 96, 98 of control, ranging from mass flows 35 to work of a compressor 50, heat from a heater 70, and a predictive processing 215 of feedback 217 for controlling commands 216 algorithmically.

An apparatus for processing a biomass material includes an evaporator and a dryer. The evaporator includes a vertically orientated evaporator housing with a heatable casing, which encloses a rotationally symmetric evaporation chamber and a drivable evaporator rotor shaft, including a central evaporator rotor shaft body and wiping units. The wiping unit includes wiping elements designed for wiping inside the evaporator housing casing. The dryer includes a housing with heatable casing and encloses a drying chamber and a drivable dryer rotor shaft for distributing the biomass material inside the casing and conveying the biomass material toward the dryer outlet and includes a central dryer rotor shaft body and rotating elements over the circumference thereof, and rigidly mounted on the dryer rotor shaft body.

A method for starting up vapor-recompression units comprises: providing a vapor recompression sub-system comprising one or more vapor-recompression units, wherein the vapor recompression sub-system has a vapor inlet and a compressed-vapor outlet; providing a means of reducing vapor density through pressure reduction in vapor communication with the vapor recompression sub-system; reducing pressure within the vapor recompression sub-system to reach a sub-system pressure selected from 0.1 kPa to 1000 kPa; introducing a vapor mass flow to the vapor recompression sub-system at a restricted vapor mass flow rate; starting up the vapor recompression sub-system while maintaining the restricted vapor mass flow rate for a start-up time period; and then, following the start-up time period, introducing additional vapor mass flow to the vapor recompression sub-system to reach a full vapor mass flow rate. The restricted vapor mass flow rate is from 0.1% to 90% of the full vapor mass flow rate.

A method for starting up vapor-recompression units comprises: providing a vapor recompression sub-system comprising one or more vapor-recompression units, wherein the vapor recompression sub-system has a vapor inlet and a compressed-vapor outlet; providing a means of reducing vapor density through pressure reduction in vapor communication with the vapor recompression sub-system; reducing pressure within the vapor recompression sub-system to reach a sub-system pressure selected from 0.1 kPa to 1000 kPa; introducing a vapor mass flow to the vapor recompression sub-system at a restricted vapor mass flow rate; starting up the vapor recompression sub-system while maintaining the restricted vapor mass flow rate for a start-up time period; and then, following the start-up time period, introducing additional vapor mass flow to the vapor recompression sub-system to reach a full vapor mass flow rate. The restricted vapor mass flow rate is from 0.1% to 90% of the full vapor mass flow rate.

A process water distillation system (10) comprises an evaporator (18), a condenser (34), a compressor (28) configured to generate a desired pressure in at least a region of the process water distillation system (10) and to convey steam from the evaporator (18) to the condenser (34) during operation of the process water distillation system (10), an inert gas source (40) configured to supply inert gas to the process water distillation system (10), and a control device (48) configured to control the supply of inert gas from the inert gas source (40) to the process water distillation system (10) in such a way that, at least in certain operating phases of the process water distillation system (10), an oxygen concentration in the process water distillation system (10) does not exceed a permissible maximum value.

A distillation device may comprise a source fluid input and an evaporator in fluid communication therewith. The device may further comprise a compressor having an impeller coupled to a motor, the compressor having a low pressure inlet for vapor from the evaporator and a high pressure outlet for compressed vapor. The device may further comprise at least one temperature sensor configured to monitor temperature of vapor in the inlet and a condenser in heat transfer relationship with exterior surfaces of the evaporator and in fluid communication with the compressor outlet. The device may further comprise a controller configured to govern rotation speed of the impeller with an impeller motor command based on a calibrated motor speed for the distillation device. The controller may be configured to determine an adjusted motor speed for a next use of the device and overwrite the calibrated motor speed with the adjusted motor speed.

A process water distillation system comprises an evaporator, a condenser and a compressor configured to generate a desired pressure in at least a region of the system and to convey steam from the evaporator into the condenser during operation of the system. The condenser is in thermal contact with the evaporator so that, at least during certain phases of operation of the system, thermal energy released during condensation of steam conveyed into the condenser is transferred to a fluid in the evaporator. The system further comprises a concentrate collection area configured to receive concentrate produced during operation of the system and an energy source configured to supply energy to the process water distillation system. A control device is configured to control the supply of energy from the energy source to the system (10) in dependence on the progress of the distillation process in the system.

A gas capture system includes a first heat exchanger that exchanges heat between cold heat of a fuel that is vaporizing and a first gas mixture to cool the first gas mixture, a first dehumidifier that dehumidifies the first gas mixture cooled through the first heat exchanger, a first compressor that presses the first gas mixture passing through the first dehumidifier, a first separation device that separates a second gas mixture including a reference gas from the pressed first gas mixture, and a liquefier that liquefies the reference gas to generate a reference liquid.