The present invention relates to a condenser for condensing gasses. The condenser comprises: an inner tube (1) having a bore (3) therethrough; an outer tube (2) having a bore (8) therethrough and two ends, the inner tube (1) passing through the bore of the outer tube (2); and a seal (15, 16) at each end of the outer tube. The outer tube has exterior and interior fins and is sealed to the inner tube so as to define a sealed space (11) between the inner tube and the outer tube. The space (11) is adapted to contain a liquid in contact with the inner tube (1) and the outer tube (2). The invention further relates to a method of condensing a gas using the condenser, a process of making a chemical using the condenser and a kit adapted to be assembled into the condenser.

Method for collecting water vapor from air as liquid water. The method includes a refrigerant compressor circulating refrigerant through a controlled dimensioned condenser into a tubing loop. A portion of the tubing loop functions as a condenser. This tube conveys the pressurized refrigerant through an expansion valve. The refrigerant pressure and temperature decreases. Ambient water vapor collects on the exterior surface of the cooled section of tube now functioning as an evaporator. The water drops from the tube surface into a reservoir for use. The tube loop extends through a multiport control valve. The method includes a control valve that cyclically and sequentially directs the refrigerant pumped from the compressor into alternate ends of the tubing loop. The cycles continually repeat. The cycles can be controlled by fluid temperature. The device can include a power supply and microprocessor controlling the generator and valves. The device may utilize a switch that detects water or ice deposits on the tube. The device can comprise a moveable frame supporting all above components.

Device for collecting water vapor from air as liquid water. Included is a refrigerant compressor circulating refrigerant through a controlled dimensioned condenser into a tubing loop. A portion of the tubing loop functions as a condenser. This tube conveys the pressurized refrigerant through an expansion valve. The refrigerant pressure and temperature decreases. Ambient water vapor collects on the exterior surface of the cooled section of tube now functioning as an evaporator. The water drops from the tube surface into a reservoir for use. The tube loop extends through a multiport control valve. The control valve can direct the refrigerant pumped from the compressor into alternate ends of the tubing loop. The device can include a power supply and microprocessor controlling the generator and valves. The device may utilize a switch that detects water or ice deposits on the tube. The device can comprise a moveable frame supporting all above components.

A mobile vacuum distillation unit for extracting, condensing, and collecting volatile organic compound vapor emissions from one or more polymer-containing articles includes a shell that defines an enclosed interior space and is mounted to a transportable support platform, a vacuum distillation vessel, a condenser, a condensate storage tank, and a vacuum pump system in fluid communication with a vacuum distillation chamber of the vacuum distillation vessel. The vacuum distillation chamber that includes the one or more polymer-containing articles from which the VOC vapor emissions are extracted may be heated by an exhaust gas heat exchanger if the transportable support platform is connected to and hauled by a tractor unit powered by a diesel engine. A method of using the mobile vacuum distillation unit to extract VOC vapor emissions from one or more polymer-containing article during transportation of the one or more polymer-containing articles between geographically separate destinations is also disclosed.

An apparatus and system for producing fresh water from moisture-laden air. The apparatus has a frame supporting a plurality of condensation panels that each have a panel body defining a pair of condensation surfaces that will contact the moisture-laden air. A panel support mechanism supports each of the condensation panels in spaced apart relation to each other so each condensation surface contacts moisture-laden air. A flow channel inside the panel body defines a flow path for a cooling fluid that cools the condensation surfaces so the moisture-laden air will produce condensate thereon that collects as fresh water. The system includes a plurality of apparatuses, a chilling mechanism to cool the cooled fluid, inlet and discharge lines connecting the chilling mechanism and apparatuses, pumps to pressurize the cooled fluid, fans to move the moisture-laden air and water collecting surfaces to collect the fresh water.

A Vapor Recovery Unit (VRU) includes a VRU heat exchanger and a sorbent material for the recovery of hydrocarbon vapors from the ullage of tanks. The VRU heat exchanger and sorbent material are useful in conjunction with a thermal transfer fluid to control the temperatures of the sorbent material during endothermic and exothermic reactions that occur when hydrocarbon vapors are adsorbed and desorbed, which increases performance and reduces the amount of sorbent material required to recover hydrocarbon vapors.

The system and method spatially predict the condensation of water and acid from the flue gas in the condensing heat exchanger installed in fossil power plant flue gas treatment system or similar environment. By modifying the operational conditions, the heat exchanger can control rates and areas of condensations. The system and method adjust either the cooling water temperature or the flowrate ratio of flue gas to cooling water to control the condensation rates of water or acids. The system and method also estimate actual coverage areas to apply for anti-corrosive coating onto the tube or duct surfaces to resist corrosion due to acid condensation. The system and method also optimize or customize condensation rates of water and acids in boiler flue gas under operating conditions given at a power plant.

A device and method for changing a fluid from one state to another state, the states comprising a liquid and a vapour state are disclosed. The device comprises: an inlet configured to receive the fluid in a first state; an outlet configured to output the fluid in a second state; and a conduit connecting the inlet to the outlet. The conduit is configured such that a resistance to flow changes along at least a portion of a flow axis within the conduit. The device further comprises a controller configured to control a location of a region within the portion of the conduit in which the fluid changes state by controlling at least one of a temperature of the fluid and a pressure at at least one of the inlet and the outlet.

The disclosure pertains to a urea plant and process of the thermal stripping type as well as to a method of modifying a urea plant of the thermal stripping type. Provided is a urea plant with a thermal stripper and a high pressure carbamate condenser with a shell space wherein gas from the stripper is condensed in the shell space.

An apparatus and system for producing fresh water from moisture-laden air. The apparatus has a frame supporting a plurality of condensation panels that each have a panel body defining a pair of condensation surfaces that will contact the moisture-laden air. A panel support mechanism supports each of the condensation panels in spaced apart relation to each other so each condensation surface contacts moisture-laden air. A flow channel inside the panel body defines a flow path for a cooling fluid that cools the condensation surfaces so the moisture-laden air will produce condensate thereon that collects as fresh water. The system includes a plurality of apparatuses, a chilling mechanism to cool the cooled fluid, inlet and discharge lines connecting the chilling mechanism and apparatuses, pumps to pressurize the cooled fluid, fans to move the moisture-laden air and water collecting surfaces to collect the fresh water.