Chemical industry

EVP Liquid Ring Vacuum Pumps used in Chemical industry

Gas recovery | methane gas recovery | gas booster | enhanced oil recovery | gas collection | crude oil stabilization | crude oil vacuum distillation | exhaust compression | vapor recovery / gas booster | Filter / except December | exhaust gas recycling | Polyester Production | polyvinyl chloride (PVC) production | chlorine packaging | other
Safe, non-polluting gas control: EVP vacuum and compression system can handle the intake airflow, explosive gas mixture, rub dirty and unpredictable gas mixture flow and other variables. Has a unique comprehensive scope of supply, including vacuum pumps, compressors and complex systems for a variety of petrochemical industrial systems applications. Typically, according to the user’s needs, can provide a variety of functions together in an integrated system, and provides proprietary technical advice.
Gas recovery
In the oil and gas industry, the gas is discharged into the atmosphere of the place, either upstream or downstream of production refining, gas recovery tank hydrocarbon gases are recovered program. Gas recovered by vacuum removal, compressed gas from the tank to achieve. By using EVP liquid ring pumps can be recycled, liquefaction, and then use ethane gas. For this purpose or in the process using a rotary vane compressor, which includes non-condensable gas and compressed to sales gas distribution lines separated by the separator.
Methane gas recovery
Gas recovery can be described as refined sewage systems or production of gas recovery. Due to its composition, which is generally considered to be the exhaust gas. Because it contains a large amount of HC gas, which usually have to be incinerated.
In many cases, there are some high quality gas can be burned off, these gases have some residual BTU value. This gas, once separated, can be recycled, and the pressure from the low pressure compressor to a large EVP pipeline compressor. The reciprocating compressor to maximize the recovery of the compressed gas, it is compressed to a generating plant, processing, and can be used to co-generation.
Here the application of the “turning waste into treasure” concept, because the recovery is to be burned in the gas most economical, and sends it as a source of energy and income sources. The senseless burning gas is reduced to a minimum, not only environmentally friendly, but also solve the problem of income and opportunities.
Gas Boost
Including the use of gas boost NASH booster compressor recovering the natural gas supplied to the compression process and may be used in the engine. Enhanced oil recovery to strengthen an upstream oil recovery type program, including the elimination of vacuum wells to relieve pressure well, so oil can flow more freely, to increase oil production. It also includes accompanying gas, merely incidental or wellhead gas recovery, recycling, while the recovery point with oil /
Gas separator, usually carried out in the well surface.
Gas collection
The program includes several well upstream of evacuation and compression, the gas is collected in a manifold or tank. This procedure is usually performed by EVP vacuum pump or a low pressure compressor, the gas is pressed into the high-pressure line of the compressor, typically a reciprocating compressor, into the gas treatment equipment.
Crude oil stabilization
By using EVP liquid ring pump or compressor discharge of dissolved gases and stabilize the actual vapor pressure can be stabilized crude oil processing. According to the environmental temperature changes, the original tank by removing the vacuum and exhaust ports to reduce the degree of compression is achieved, which can improve the security of the original tank.
Crude oil vacuum distillation
By atmospheric distillation or vacuum distillation, oil treated, may be made of gasoline and other hydrocarbon fuels.
This usage includes crude distillation tower applications EVP vacuum equipment. The combined effects of heat and vacuum degree, depending on the boiling points, separation of crude oil into different components. Its purpose is to extract lighter components, such as gasoline. Than the atmospheric distillation to vacuum distillation has higher performance
Exhaust Compression
Noncondensable light hydrocarbon gases and other refinery crude distillation column is collected in an ordinary exhaust device container, and is discharged through line burned, or discharged to the compressor. Depending on the desired discharge pressure, the compressor of the exhaust gas has a combustion value of the compression, and its combustion, to recover energy. This process is very short, this energy recovery, is very important for environmental protection.
Vapor recovery / gas boost
This differs from the exhaust recovery, vapor recovery is relatively fixed, immutable. Typical applications are the collection tank vent. Tight control on the degree of vacuum in order to protect the tank. Normally, the exhaust pressure is relatively low. Gas often return to the handler, or liquefaction, and return the tank.
Filter / except December
In addition to filtering or wax refers to collect hydrocarbon base oil production in December ingredients. Get rid of the oil wax ingredients that can improve the quality and suitability of the oil. EVP liquid ring pump continued to eliminate disc or drum filters with a vacuum of frozen MIBK may contain nitrogen. If you need a higher degree of vacuum, it will install a mechanical fan and EVP liquid ring pumps, the combined effects.
Exhaust gas recycling
In the flare gas / exhaust gas recovery unit, EVP liquid ring compressor is the ideal choice. One major reason is that the gas compression is substantially isothermal conducted at a temperature of about 30 degrees Celsius to 50 degrees Celsius. This avoids the use of other types of exhaust gas in the compressor may encounter aggregation phenomena occur in the compressor internal temperature.
Polyester Production
In the production of the polyester, the reaction may be a composite tower vacuum steam ejector vacuum system by the liquid ring pump and EVP to obtain the desired composition. And other applications is different, can be directly used here glycol (EG) as a working fluid pump for safe and reliable operation of the entire vacuum system.
PVC production
In polyvinyl chloride (PVC) production process, the reaction of residual vinyl chloride monomer (VCM) is drawn first NASH liquid ring vacuum pump and fed into the gas tank; then by EVP liquid ring compressor pressurized to 0.7MpaA about recycling tank stored in liquid form in VC, pending further reaction.
Chlorine packaging
In the chlor-alkali plant chlorine packaging technology, the use of high outlet pressure EVP liquid ring compressor, can greatly reduce costs and avoid environmental pollution.
EVP liquid ring vacuum pump, vacuum unit and compressor (including corrosion-Series) applications in the petrochemical / chemical industry is very extensive, far more than the few.
Another example: the recycle gas compression, pressure swing adsorption (PSA), chlorine production, acetylene, hydrogen and other flammable compressed gas, crude oil vacuum distillation tower vacuum system, chlorine and other toxic, corrosive gas compression, vacuum crystallization, drying, vacuum filtration, vacuum conveying various materials.

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