In recent years, the rational control and use of resources has become an important topic of global concern. If we want to comprehensively improve the effective use rate of oil resources, we need to establish a new technology application management method that is more in line with the goal of sustainable development based on the requirements of modern economic and social construction and science and technology. It is based on this that the comprehensive application of oil recovery technology can effectively rationalize the control and resource use mode, lay a solid foundation for the intensive construction process of oil storage, and create a large-scale scientific and technological support system. According to relevant research, there will be about 0.26%~0.3% resource loss in the oil field storage process, and the resource loss of gasoline processing is even greater. Therefore, by scientifically and rationally selecting oil recovery equipment, the consumption of resources can be greatly reduced, which provides a guarantee for improving the comprehensive use efficiency. Therefore, the active use of oil recovery technology in oil storage has great practical significance.

Many companies lack understanding of oil utilization, which has accelerated the process of oil depletion, interfered with the development of the entire oil utilization industry, and caused risks to enterprises. Moreover, some people only pay attention to the economic benefits of environmental pollution caused by crude oil and gas emissions, but ignore the problems, which aggravates my country's environmental pollution and air pollution, and also restricts the development of my country's environmental protection work. In the complete life cycle of oil storage and transportation, oil losses generally occur in the following three stages: (1) Feeding station and receiving station. In the process of oil storage and transportation, oil losses mainly refer to the loss of oil and gas breathing between oil phases. During the loading and unloading and transportation of storage tanks, they will be subject to huge changes in air pressure. Under the influence of huge pressure, a large amount of oil and gas in the reservoir escapes, causing greater oil damage. Due to the long repair time and recovery process, huge crude oil and gas leaks are caused. Therefore, it is necessary to select appropriate oil and gas processing technology in the receiving process to reduce the risk of natural gas in the receiving process; (2) Unloading stage. Since the requirements for natural gas emissions are difficult to use in unloading oil and gas, the unloading of oil and gas during storage often causes some oil and gas risks. Therefore, when loading and unloading oil, if you choose appropriate connecting tanks to reduce oil loss, or use oil production equipment, the actual value and its volume are relatively inconsistent, which has great economic significance; (3) Oil storage stage. In oil and gas fields, the concentration, temperature and external environment of breathing oil will change during storage and transportation, causing pollution, so oil must be sealed. The gas storage system and facilities in the process of oil storage and transportation integration will directly discharge the oil in the storage and transportation process into the atmosphere, causing pollution. Therefore, oil processing technology is crucial to the treatment of oil in the storage and transportation process.

The oil recovery system is not only complex and cumbersome, but also requires huge labor and capital consumption. Therefore, at present, the oil and gas recovery system has not been established in most gas stations in China. Only a very small number of gas stations located in economically developed areas have invested in establishing an oil recovery system. But in general, the penetration rate of the oil recovery system is relatively low. There are many reasons: some are due to political and ideological factors. For example, in many remote areas, people are completely unaware of the economic losses caused by oil and gas volatilization, and are also completely unaware of the environmental pollution caused by oil volatilization. The awareness of recycling is not strong or even completely unaware of the problem [6]; some are due to economic and technical factors. Due to the transmission of modern information and the popularization of scientific knowledge, many people have begun to realize the environmental losses and impacts caused by oil volatilization. However, the capital, manpower and material resources required to build an oil recovery system are very huge, which increases the difficulty of building an oil recovery system comprehensively.

The main resources available in petroleum and chemical enterprises are chemicals such as gasoline, automobile chain mixture, butanol and octanol. In this process field, the most common hydrocarbon treatment process in the world is activated carbon adsorption. In oil treatment work, the rigor of crane pipeline installation and construction is very critical, and a slight omission may cause significant losses. Therefore, in order to successfully complete the natural gas regeneration line project, it is necessary to fully consider and improve the wear resistance of the pipeline, while minimizing the oil and gas recovery line of the lifting line. According to the requirements of relevant parties, the total emission of non-methacrylic hydrocarbons is ≤120 mg/m3 in the exhaust gas and ≤12 mg/m3 in the exhaust gas. In this way, the crude oil and natural gas entering the recovery unit will first go through the first freezing stage to produce hydrocarbons, and then repolymerize the crude oil with gaseous liquid particles and substances, and take away water. After that, the secondary cooling freezes the oil and gas temperature to 34.5℃. During this period, the exhaust gas content after the cooling process is reduced and flows into the activated carbon absorption system, where it is absorbed by the adsorbent material, thereby reaching a low pollution level. Therefore, in the application of petrochemicals and oil processing, the main materials used from oil are MTBE, toluene and butanol, among which the harmful substances are not directly related to petrochemicals. The treatment method used in this case is essentially a two-step condensation method and an activated carbon treatment method. The oil is first pretreated, and then transported to the oil processing equipment for secondary freezing and cooling phase change reaction. After the first use of oil and gas, people have resumed using cooling to heat up to 2. 5 ℃ hydrocarbons, and then cooling water and liquid air. A second stage of cooling the cooled oil and gas to 34. 5 ℃ was carried out. Most hydrocarbons condense in liquid physiognomy, but if the uncondensed gas exceeds the smaller oil and gas content, the use of an activator can be final processed and meet emission standards. Under these premises, a combination of various strategies was selected to assist in the treatment of crude oil and natural gas. The advantages of various technologies were integrated, the disadvantages of various methods were reduced, and pollution standards were established, thereby reducing damage to the air and natural environment. As far as China's current development status is concerned, many Chinese companies have equipped oil and gas recovery equipment in oil depots. Because the purchase cost and operation cost of oil and gas recovery equipment are relatively high, some small and medium-sized enterprises lack the corresponding capital investment to ensure the equipment and operation of oil and gas recovery equipment. In addition, some companies use some old devices with relatively backward technology, which also makes many oil recovery devices ineffective, restricting the promotion and application of oil processing technology.

Based on the above analysis, there are many ways to cause oil and gas loss at gas stations. Although the tank trucks transporting cars and natural gas are very strict, and some gas stations are also equipped with isolation facilities and fire extinguishers, etc., simple methods have not completely solved the problem. In order to solve the root of the problem, we must actively deal with the volatile fuel, that is, to deal with the pollution sources in the environment, reduce the loss of oil, and reduce the harm to the environment, and increase consumers' sense of security. The implementation of three-stage oil and gas recovery at gas stations is very necessary for production and life safety, social and economic benefits, and technological progress. Therefore, the three-stage oil and gas recovery should focus on some new materials, new technologies, and new processes that are energy-saving, efficient, long-lasting, simple, and have domestic independent intellectual property rights. At the same time, it should learn from the mature processes and operating experience of VOCs treatment in refining and chemical companies, optimize the operating conditions of its own equipment, and achieve stable operation of the equipment. Old gas stations with serious external emissions should be upgraded and transformed in one step to adapt to increasingly stringent emission standards.

The state must strengthen its support and supervision over oil utilization, actively introduce oil utilization science and technology, and use various oil utilization science and technology to fully utilize oil in the process of oil transportation, which will help improve the utilization efficiency of oil, reduce damage to the environment, and bring huge practical benefits. It is believed that in the near future, China's tertiary oil and gas recovery will reach the world's leading level with high recovery rate, low emission and stable operation.