The method of obtaining the odorant

The invention relates to the production of synthetic rubber by emulsion polymerization method

The invention relates to oil and gas industry and can be used to remove moisture from natural gas before it is transported

The invention relates to techniques for drying gases by freezing and is used primarily in the air preparation system in the production of films

The invention relates to chemical technology and can be used in production has synthesis (GUS) and in other industries that consume nitrogen oxides

The invention relates to a device for cleaning and drying compressed air and can be used in all industries, for example in devices air supply of pneumatic systems for various purposes

The invention relates to the preparation of natural and associated petroleum gas

The invention is dealt with installations of glycol regeneration with use of vacuum, which may find application in processes of a hydrocarbon gas absorptive drying from a moisture. The invention may be used in gas, petroleum and other industries. The installation includes a saturated glycol feeding pipeline connected through an ejector to an atmospheric column - stripper, which has an outlet branch-pipe of partially regenerated glycol and is fused to the vacuum column supplied with the lower branch-pipe of regenerated glycol withdrawal and the upper branch-pipe of vapors withdrawal, which are linked to a passive nozzle of the ejector. At that the saturated glycol feeding pipeline has a section with two parallel lines, on one of which there is the ejector with a flow meter mounted in front of its active nozzle and connected with a control valve installed on one of the lines. The vacuum column is made in the form of mass-exchange column and equipped with a fixed plate with a located over it branch-pipe of withdrawal of water, a cooling coil in the column upper part and a contact device with low hydraulic resistance in the lower part. The invention ensures efficient regeneration of glycol in the vacuum column and unloading of an atmospheric column - stripper.

The invention presents a device for drying of gases by freezing-out and is dealt with the field of gasses drying devices. The device includes a vortex pipe, pipelines with the fixture, freezing out heat exchangers, a gas-distributing device mounted with a capability to feed either cool, or a hot gas from the vortex pipe into coiled pipes of heat exchangers. At that the inter-pipe space of the heat exchangers is connected with a pipeline of the humid gas delivery and a pipeline of the dried gas withdrawal. The vortex pipe is connected with a pipeline of the dried gas withdrawal and the coiled pipes outlet is connected with the pipeline of the dried gas withdrawal through an ejector. The device in addition has a pipeline connecting the pipeline of the humid gas reception through an adsorber with the pipeline of the dried gas withdrawal. The lower parts of the heat exchangers are used in the capacity of water-oil separators. The invention ensures an increase of efficiency and reliability of the device operation.

Proposed gas drying separator has housing with branch pipes for inlet of non-cleaned gas, escape of cleaned gas and liquid and inlet and outlet filtration sections. Inlet filtration section is made in form of plate mounted above non-cleaned gas inlet branch pipe; this plate is provided with straight-flow centrifugal separation members and gas distributing unit made in form of truncated cone or truncated pyramid widening upward; guide grates with rectangular or square holes are mounted in inlet and intermediate sections. Guide grates are made from vertical flat plates whose height is equal to length of one of sides of square holes or lesser side of rectangular hole; outlet filtration section is made in form of at least two detachable plates located one above other and provided with ring checkerwork; gas distributing grate is located between plates.

Invention relates to regeneration of saturated glycol solution used in the natural gas pre-transportation treatment and may also be employed for separating liquid thermolabile substances, whose destruction products are corrosion-active components. Regeneration is accomplished with the aid of mass-exchange column and evaporator. Glycol solution to be regenerated is first separated into at least two portions, of which one is used in unheated state as reflux for the mass-exchange column top vapors and finally gets into evaporator, whereas the rest of the glycol solution is heated and then fed directly into evaporator. Temperature of the column top vapors is controlled by amount of the cold portion of saturated glycol solution used as reflux.

The invention is pertaining to the field of gases dewatering. The method provides for creation of a closed contour including a closed volume, a gaseous drying machine, a choking device and valves, in which a gas dewatering is conducted continuously under a constant pressure in the closed volume with increasing consumption of a gas in a gaseous drying machine. For production in the closed volume of a dried gas at the increased pressure they additionally dry a gas under increasing pressure in the closed volume. For the purpose they open the gate of the gas intake from the atmosphere for the gas dewatering machine and a valve at the gas outlet - close. At that open the gate on a gas dewatering machine from the shut volume close down. The invention allows to decrease a time of the gas dewatering and to reduce power input for production of a dehydrated air.

Proposed adsorption plant includes compressor with electric motor controlled by pressure relay, adsorber with blow valve connected to compressor, check valve with throttle unit connected in parallel, regenerated air accumulating reservoir, second check valve, dry air main with air receiver, normally-open and normally-closed cutoff valves mounted in parallel and connected between outlet of check valve and throttle unit and inlet of regenerated air accumulating reservoir located in series relative to compressor between cutoff valves and dry air main and provided with pressure relay electrically connected with coil of electromagnetic cock of normally-closed cutoff valve.

Method comprises introducing surface-active agent into the diethylene glycol, say nickel salt of synthetic fat acids Ni(C_nH_2nO₂)₂, where n = 10-16 in amount of 23.125-46.25 g/t, which provides carbon dioxides emission.

The invention is pertaining to the field of gas-production industry, in particular, to the methods of preparation of a hydrocarbon gas. The method of preparation of a hydrocarbon gas is dealt with its field treatment, primarily, with the gas dewatering and may be used for preparation of the natural and associated gases for transportation and the low-temperature treatment. The method provides for a contact of a crude gas with methanol, separation of the liquid phase into hydrocarbons and a water solution of methanol, a regeneration of the water solution of methanol by rectification, separation of water steam from the gas. At that the separation of a liquid phase is conducted at the temperature of methanol evaporation. The evaporated methanol is fed to a rectification, and the heavy liquid fraction of hydrocarbons separated from the water solution of methanol is taken out in the form of a product. The stream of the taken out product - the stream of hydrocarbons is divided into two streams, one of which is fed as a hydrocarbon absorber to contact the initial gas, and the evaporated methanol is fed for a rectification above the feed of the water solution of methanol. At that the heating of the mixture of the being separated liquid phases is performed using the upper product of the regenerator; the light fractions of hydrocarbons are take out as a product from the middle part of the rectification system. The invention allows to increase efficiency of the gas process and to reduce the operational costs.

Invention relates to methods for regeneration of hydrocarbon absorbents? for example moisture/glycol absorbers, which are used to extract water steam in installations for drying of natural and oil gases and treatment thereof before transportation. Process of invention comprises withdrawing charged absorbent from absorber, passing it to stripper, withdrawing absorbent solution from the bottom of stripper and heating it in furnace under pressure providing liquid state of solution, and passing solution into bottom part of the stripper. Process is characterized by that solution heated in furnace is preliminarily transferred into heat generator wherein stream is accelerated and twisted, after which is introduced into bottom part of stripper above level of liquid therein and hindered to release heat in the bottom part of stripper, while pressure of solution is equilibrated with that in stripper. Liquid stream of hot absorbent is introduced into bottom of absorber and gas stream into its middle part. Temperature in bottom part of stripper is maintained by consumption of absorbent with the aid of thermogenerator.