With the invention a washing apparatus and a process for the efficient separation and recovery of methanol from waste gases loaded with methanol is proposed, wherein the invention also can be used in an integrated flow chart for the production and processing of methanol. The methanol fractions separated from the waste gases are recovered within the already existing, distillative processing of the crude methanol to pure methanol, so that no separate apparatuses are required for the recovery of the methanol from the loaded scrubber waste waters. The valuable substance methanol is recovered and the impact on the environment is reduced. By particular aspects of the invention the total degree of methanol separation can be adapted according to the locally applicable emission limit values.

The purification method comprises: a step for placing the laden gas stream in contact with a saline solution stream, the saline solution stream comprising, before placement in contact, at least 300 g/l of salts, at least part of the quantity of volatile organic compound being extracted from the laden gas stream and absorbed by the saline solution stream, the placement in contact step producing a purified gas stream containing a residual quantity of volatile organic compound and a laden saline solution stream; a step for recovering the volatile organic compound, comprising a sub-step for decanting a laden saline solution stream, leading to the separation of a phase containing the volatile organic compound and of the saline solution.

The invention relates to a process for the recovery and recycling of ethylene oxide (EO) after use in a sterilization process. The process involves the steps of introducing a mixed gas stream containing EO, nitrogen, oxygen, CO.sub.2, water, and a few other trace elements. The system includes integrated EO concentration sensors to determine the concentration of the EO in the gas stream. The system includes a series of compressors to pressurize the gas stream, and chillers or condensers to cool the gas stream to condense the EO out of the gas stream. The system includes temperature and pressure sensors to determine the conditions in the gas stream, and a control system that evaluates the temperature and pressure data and controls the compressors and chillers to achieve the properties to maximize the condensation of EO out of the gas stream.

Disclosed is a novel air purification composition with antiviral and bactericidal functions, the composition at least comprising the following components in percentage by weight: 0.3%-1% of a black poplar essential oil, 0.1%-1% of a tea tree essential oil, 0.1%-0.5% of a Cupressus funebris essential oil, 0.1%-1% of an Artemisia apiacea essential oil, 0.1%-10% of a Sophora flavescens extract, 0.1%-5% of a ginger extract, 5%-30% of a Cupressus funebris hydrolate, 0.5%-1% of a hyperbranched amino polymer, 0.5%-5% of a surfactant, and the balance being water.

A respiratory protection filter includes filtration media. The filtration media includes an iron-doped manganese oxide material having an average pore size (BJH method) in a range from 1 to 4 nm and a surface area (BET) of at least 300 m.sup.2/g, or at least 350 m.sup.2/g, or at least 400 m.sup.2/g.

The present invention discloses a strain of Pseudomonas aeruginosa with monomethylamine degradability and the application thereof. This strain, named Pseudomonas aeruginosa GDUTAN1, was deposited on May 24, 2017 in the China Center for Type Culture Collection in Wuhan University, Wuhan City, Hubei Province with a deposit number of CCTCC NO.: M 2017283. This Pseudomonas aeruginosa GDUTAN1 was Gram-negative and rod-like, and round, green and opaque in the colony morphology, having a diameter of 1-2 mm. The Pseudomonas aeruginosa GDUTAN1 of the present invention can be applied to environmental remediation, degrading monomethylamine in the environment at a high degradation efficiency. When it degrades monomethylamine for 96 h at a substrate concentration of 50-140 mg/L, the degradation efficiency can reach more than 99%.

A heating system for compressed parts capable of controlling process atmosphere and pressure includes an accommodating body, a heating device, an atmosphere controlling device, and a processing pressure adjusting device. The heating device is disposed inside or outside of the accommodating body to heat a component to be heated, so as to remove an impurity within the component to be heated. The atmosphere controlling device transports a reaction gas, such as hydrogen, oxygen, water vapor, or plasma, into a cavity for reacting with the impurity within the component to be heated. A phase transition or a chemical reaction can be carried out, such that the impurity is gasified, oxidized, carbonized, or disintegrated. The processing pressure adjusting device uses an inert gas (e.g., a nitrogen gas or an argon gas) to control the processing pressure in the cavity to be from 800 Torr to 10.sup.2 Torr.

An activated carbon device for adsorbing solvent from a flow of air is regenerated by feeding heated inert gas to the activated carbon and by applying a reduced pressure to the heated activated carbon.

In a first aspect, the disclosure provides a method for removing a component from a gas stream. A carrier gas stream is cooled by direct contact with a dehydrating solution stream. The dehydrating solution stream removes a portion of water present in the carrier gas stream and produces a dry gas stream and a wet solution stream. A portion of the component is removed from the dry gas stream by direct contact with a cold contact liquid stream. A depleted gas stream and a slurry stream are produced. Removing the portion of the component may include desublimating, freezing, condensing, depositing, or a combination thereof of the portion of the component out of the dry gas stream as a solid product. The slurry stream may include the solid product and a contact liquid. The solid product is separated from the contact liquid, producing a substantially pure solid product stream and the cold contact liquid stream.

The invention relates to a process for the recovery and recycling of ethylene oxide (EO) after use in a sterilization process. The process involves the steps of introducing a mixed gas stream containing EO, nitrogen, oxygen, CO.sub.2, water, and a few other trace elements. The system includes integrated EO concentration sensors to determine the concentration of the EO in the gas stream. The system includes a series of compressors to pressurize the gas stream, and chillers or condensers to cool the gas stream to condense the EO out of the gas stream. The system includes temperature and pressure sensors to determine the conditions in the gas stream, and a control system that evaluates the temperature and pressure data and controls the compressors and chillers to achieve the properties to maximize the condensation of EO out of the gas stream.