A gas purifying apparatus has: a compressing unit for compressing a gas in which an atmosphere or inert gas and a substance vaporized by heating have been mixed; and an expanding unit for liquefying the substance by expanding the gas compressed by the compressing unit, wherein the gas in which the substance has been reduced is obtained

The disclosure pertains to a urea production process comprising concentrating a first urea solution in a first vacuum evaporator in an evaporation section to give a urea melt and first vapor, and condensing said first vapor in a first condensation section, wherein the first condensation section is a chilled condensation section.

The disclosure pertains to a urea production process using a first and a downstream second evaporator in an evaporation section, a finishing section and a scrubber for treating off-gas of the finishing section. Condensate from the condenser of the second evaporator is supplied to the scrubber.

Systems for atmospheric water generation are disclosed. An illustrative system may comprise an atmospheric water generator, and a wireless communications device communicatively coupled to the atmospheric water generator. The wireless communications device may be configured to receive and display status information associated with the atmospheric water generator, and to provide operating instructions to the atmospheric water generator. The wireless communications device may be further configured to display an outside temperature, an outdoor humidity, a water level, an indoor temperature, an indoor humidity, and a dew point. The wireless communications device may be further configured to receive control instructions, and wherein the wireless communications device is further configured to communicate the control instructions to the atmospheric water generator.

An atmospheric water generator for extracting water droplets from ambient air includes an insulating substrate, a plurality of electrode film units, and a liquid crystal/polymer composite film. Each of surface regions of the liquid crystal/polymer composite film has a plurality of liquid crystal molecules each having a hydrophilic functional group and a hydrophobic moiety. Each of the surface regions normally has one of hydrophilic and hydrophobic properties. When a voltage is applied to one of the electrode film units, the respective surface region is switched to have the other one of hydrophilic and hydrophobic properties, to thereby allow the water droplets condensed from the ambient air to move on the surface regions.

A system and method for recovering a sterilization agent from waste gaseous mixture, comprising a gas separator to wash waste gas comprising a gaseous mixture of a sterilization agent, insert dilution gases, and water vapor, from plurality sterilization chambers, with water, thereby producing a water-gaseous sterilization agent mixture collected at bottom section of the gas separator, and inert dilution gases exhausted at top section of the gas separator; a pressure reducing valve; a first tank or gas evaporator to produce gaseous sterilization agent and water vapor; a first condenser to produce condensed water vapor and separate the gaseous sterilization agent from the condensed water vapor; a water tank to receive the condensed water vapor; a separation pump for raising pressure of the gaseous sterilization agent; a second condenser to cool the gaseous sterilization agent causing the sterilization agent to condense into liquid; and a second tank for storing the liquid sterilization agent.

A method and system for recovering a sterilization agent and nitrogen from a waste gaseous mixture, comprising: pressure reducing valve for reducing pressure of waste gas from sterilization chambers to a first predefined pressure; a first condenser to receive the gaseous mixture and cool it to a temperature below boiling point and above freezing point of the water vapor at the first predefined pressure, to produce condensed water vapor; a first tank for storing the condensed water vapor; a separation pump for raising pressure of the gaseous mixture to a second predefined pressure; a second condenser to cool the gaseous mixture to a temperature below boiling point and above freezing point of the sterilization agent at the second predefined pressure, to condense the sterilization agent into liquid, and to discharge the nitrogen gas remaining in the gaseous mixture; a second tank for storing the sterilization agent; a compressor to compress the discharged nitrogen gas and increase pressure of the discharged nitrogen gas to a preset pressure value; and a third tank or storing the nitrogen gas for reuse.

A gas purifying apparatus has: a compressing unit for corn pressing a gas in which an atmosphere or inert gas and a substance vaporized by heating have been mixed; and an expanding unit for liquefying the substance by expanding the gas compressed by the compressing unit, wherein the gas in which the substance has been reduced is obtained.

A system and method for processing unconditioned syngas first removes solids and semi-volatile organic compounds (SVOC), then removes volatile organic compounds (VOC), and then removes at least one sulfur containing compound from the syngas. Additional processing may be performed depending on such factors as the source of syngas being processed, the products, byproducts and intermediate products desired to be formed, captured or recycled and environmental considerations.

A controlled decarboxylation of cannabinoids results in a high yield of decarboxylated forms of cannabinoids and also preserves the integrity of volatile components such as terpenoids and as well as fats and lipids that are present in the cannabis extract. The inventive apparatus allows the different components in the cannabis plant extract to be kept in the same reaction mixture during the decarboxylation process, while allowing the decarboxylation process to proceed without breakdown of the more volatile components of the mixture by use of a very low temperature condenser. The invention also relates to a method for controlled decarboxylation of cannabinoids using the novel apparatus.