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Question:

What are the ways to recycle the oil and gas recovery unit in the tank car?

What are the ways to recycle the oil and gas recovery unit in the tank car?

Answer:

Several oil and gas recovery technology at present have their respective advantages and disadvantages, a single method, whether it is perfect or condensation adsorption hair are very difficult to say, only a few technology combining the complementary advantages, can better play the advantages of various process.1, condensation method and adsorption method is currently a more popular method, but also can be recognized by most people. In general, the two stage condensation oil and gas condensation to -40 degrees to -50 degrees, through the two stage condensation after more than 85% oil and gas liquefied, not condensed into liquid to lower the concentration of oil and gas through an adsorption system, the enrichment of oil and gas, the gas concentration is greatly improved, at the same time the volume is greatly reduced (by the standard tail gas adsorption system for separating emissions), then the concentration of oil and gas enters the depth three condensing system at power condensation, three stage condenser is greatly reduced. Advantages of this process:(1) it combines the advantages of condensation method and adsorption method;(2) because of the enrichment of oil and gas with the adsorption system, the oil and gas in the three stage condensation will be greatly reduced, and the energy consumption will be reduced;(3) the oil and gas after two condensation are medium low temperature oil and gas, and the active carbon bed will not generate high temperature hot spots, and the adsorption system also overcomes the hidden dangers.
At present, oil and gas recovery methods are mainly adsorption, absorption, condensation, oxidation incineration, etc., in the early stages of oil and gas recovery, these methods have been applied. With the increasing understanding of oil and gas recovery technology, absorption method has been eliminated due to its high concentration of exhaust gas and the oxidation incineration process because it can not recycle valuable hydrocarbon components.
Oil and gas recovery is a high-tech energy saving and environmental protection, the use of oil and gas recovery technology in oil storage and transportation, loading and unloading of emissions in the process of oil and gas, to prevent air pollution caused by volatile oil and gas, to eliminate potential safety problems, by improving the utilization of energy, reduce economic losses, resulting in considerable returns.
Membrane absorption: using absorption method and membrane separation technology integration of oil and gas recovery method and device, the method of mixed gas of various oil and oil storage and transportation equipment in the unloading process of gas and air, the collector and the compressor into the absorption tower, the use of special agent of poor absorption in absorber absorption recovery light oil evaporation oil gas discharged from the exhaust tower, containing a small amount of oil and gas is fed into the membrane separator of oil and gas and air will be further separated, and the air is discharged into the atmosphere, then the absorption desorption of oil and gas absorbent after being sent to the desorption tank, the absorber can be recycled. Separated from the membrane separator and high concentration oil desorbed from the desorption horizontal tank of gas can be sent to the recovery tower, tower body is recycled liquid lean oil absorbed by rich oil absorption after being returned to the storage tank or can be used directly. The method can make the recovery of oil and gas more than 99%, and obtain obvious environmental and economic benefits.

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