A gas conditioning unit for a surgical gas delivery device is disclosed, which includes a filter housing having an insufflation gas flow path for delivering insufflation gas to a body cavity and for facilitating pressure measurements from the body cavity, a pressurized gas flow path for delivering pressurized gas from a pump in the surgical gas delivery device to an internal nozzle in the filter housing that accelerates the pressurized gas and thereby generates a continuous pressure barrier that inhibits egress of insufflation gas from the body cavity, a vacuum return flow path for returning depressurized gas spent by the internal nozzle back to the pump under vacuum, an air entrainment flow path for drawing air into the body cavity to maintain a given pressure therein, and a smoke evacuation flow path for conveying smoke from the body cavity.

A method for conditioning natural gas for downlink applications comprising pulling raw gas; cooling the gas to a temperature within a preset temperature range; removing solid contaminants and condensed liquids from the gas; reducing gas pressure to meet the requirements of the inlet side of a compressor; controlling the rotational speed of the compressor based on data input from various flow meters; delivering the preconditioned gas to the suction side of the compressor; elevating gas pressure to achieve a desired discharge pressure; using an aerial cooler to cool the pressurized gas; delivering the pressurized gas to a separator to separate the liquids from the gas; repeating the compression, cooling and separating steps until desired temperature and pressure are achieved; cooling the gas through the use of a heat sink; removing liquids from the gas through the use of a separator; and adjusting the final gas pressure and temperature.

A method for conditioning natural gas for downlink applications comprising pulling raw gas; cooling the gas to a temperature within a preset temperature range; removing solid contaminants and condensed liquids from the gas; reducing gas pressure to meet the requirements of the inlet side of a compressor; controlling the rotational speed of the compressor based on data input from various flow meters; delivering the preconditioned gas to the suction side of the compressor; elevating gas pressure to achieve a desired discharge pressure; using an aerial cooler to cool the pressurized gas; delivering the pressurized gas to a separator to separate the liquids from the gas; repeating the compression, cooling and separating steps until desired temperature and pressure are achieved; cooling the gas through the use of a heat sink; removing liquids from the gas through the use of a separator; and adjusting the final gas pressure and temperature.

A carbon dioxide recovery apparatus is disclosed including a flue gas cooling unit that brings flue gas cooling water into contact with a flue gas to cool the flue gas, a circulation channel through which the flue gas cooling water and condensed water are returned to the flue gas cooling unit, an absorption unit including a carbon dioxide absorbing section, and a flue gas washing section that brings the flue gas including carbon dioxide absorbed in the carbon dioxide absorbing section into contact with flue gas washing water and washes the flue gas, a regeneration unit that removes carbon dioxide from the absorbent including carbon dioxide absorbed in the absorption unit, a supply channel through which circulating water is guided, and a discharge channel through which the circulating water circulating through the flue gas cooling unit and the circulation channel is discharged to outside of a system.

A method for recovering a helium product or intermediate product, wherein a first natural gas stream containing helium is supplied to a first natural gas processing unit and at least one second natural gas stream containing helium is supplied to at least one second natural gas processing unit, at least the first natural gas processing unit comprising helium recovery means via which the helium product is formed from at least a part of the first natural gas stream. At least temporarily a helium transfer from the at least one second natural gas stream to the first natural gas stream by means of a helium transfer arrangement comprising a membrane unit is performed before the first natural gas stream is provided to the first natural gas processing unit and before the at least one second natural gas stream is provided to the at least one second natural gas processing unit.

A method for recovering a helium product or intermediate product, wherein a first natural gas stream containing helium is supplied to a first natural gas processing unit and at least one second natural gas stream containing helium is supplied to at least one second natural gas processing unit, at least the first natural gas processing unit comprising helium recovery means via which the helium product is formed from at least a part of the first natural gas stream. At least temporarily a helium transfer from the at least one second natural gas stream to the first natural gas stream by means of a helium transfer arrangement comprising a membrane unit is performed before the first natural gas stream is provided to the first natural gas processing unit and before the at least one second natural gas stream is provided to the at least one second natural gas processing unit.

Systems and methods for concentration of a sorbate in a feedstream and subsequent adsorption utilizing a Type V adsorbent are provided.

Systems and methods for concentration of a sorbate in a feedstream and subsequent adsorption utilizing a Type V adsorbent are provided.

A method for drying a gas sample comprises flowing purge gas over the exterior of tubes of a perfluorosulfonic acid membrane and flowing the gas sample through interior of tubes, wherein the drying operation is conducted under deep vacuum and with the purge gas flowing at a rate that is typically less than that of the gas sample being dried.

A method for drying a gas sample comprises flowing purge gas over the exterior of tubes of a perfluorosulfonic acid membrane and flowing the gas sample through interior of tubes, wherein the drying operation is conducted under deep vacuum and with the purge gas flowing at a rate that is typically less than that of the gas sample being dried.