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Will be smelt in the gasoline stations, out of these volatile substances called "oil", not only pollute the environment, endanger human health, but also a waste of resources. Oil evaporation losses in storage and transportation of crude oil processing capacity of about 0.26% -0.34%, while the process of evaporation of gasoline in the biggest loss. Gasoline evaporation loss is usually less than 5% foreign, and our up to 6% -10%.
Through the oil depot, gas station, tank installation of vapor recovery systems, oil and gas will not see all those "caught up" and revert to gasoline, protect the environment, health protection, energy conservation, the triple role. Application of oil and gas recovery technology, which uses hierarchical principle of the cooling liquid, gaseous volatile oil and gas, condensed into a liquid oil, to be recycled, can improve the efficiency of oil and gas resources.
Course of development of oil and gas recovery technology
Currently, oil and gas recovery developed in its gas stations, oil depots, refineries and other important places of usage has more than 90% of the annual direct benefits of more than 500 billion yuan; but only 30% of China's oil and gas refining companies set up recycling device, about 10% of the oil and gas recovery facilities built gas station, only the equivalent of the United States in the 1990s level.
In 2004, Qingdao Hi-Tech Petroleum Technology Research Institute and the oil and gas recovery equipment Qingdao Desheng Technology Development Co., Ltd. jointly developed the first domestic 300m3 / h condensing oil recycling plant, and January 2005 in Qingdao refinery Factory test run. In August, the technical committee of experts has been identified as: "In the environmental field to fill the gap, to reach the international advanced level of similar research." After 2006, domestic oil and gas recovery in Guangzhou, Daqing, Jiangyin, Dalian, Harbin and other the city's gas stations and promote the use of large-scale refinery. As of the end of 2008, there were more than 100 enterprises and research institutes to carry out research and development of oil and gas recovery technology and equipment manufacturing.
At present, more advanced and reliable oil and gas recovery technology and equipment are: three condensation separation technology and equipment. It is not only convenient for users to flexibly according to the ambient temperature operation, and saves the maximum power consumption of equipment operation and equipment processing and procurement costs, while a substantial increase in the oil and gas recovery. Membrane vapor recovery technology and equipment. The device is the use of polymer film on the oil and gas permeability characteristics of the priority "removal" of oil and gas, oil and gas to achieve the recovery and utilization. Application of new technologies, the recovery rate of 95.3% hydrocarbons, benzene recovery rate was 98.4%, total hydrocarbons emissions less than 12.5g/m3, full compliance with national emission standards.
It is understood that Beijing has completed the "oil and gas recovery management" project, the recycling of 20,000 tons per year to restore oil and gas into gasoline, a total of 900,000 vehicles to fill, with a total value of more than 150 million yuan.
Obstacles to development of oil and gas recovery industry and trends
The slow progress of China's oil and gas recovery, reason, mainly by poor people's environmental awareness, one-time investment and other factors.
Construction of a set of 300m3 / h to match the amount of volatile oil and gas recovery, investment of nearly 300 million yuan. If the construction of an 500m3 / h to match the amount of volatile oil and gas recovery unit, the pre-time investment up to 450 million -500 million. Many refineries and gas stations heard such a large investment needed, hit the "retracted." After looking at these companies, but there is no such an account: even if the minimum loss by the amount of volatile crude oil processing and oil and gas recovery rate 0.26% 95% calculation, a 300m3 / h of the refinery, installation of oil and gas recovery, the recovery of gasoline a year will also be more than 2000t, efficiency of the section 120 million. Less than three years, you can fully recover their investments.
China has three oil and gas recovery standard, has implemented more than two years. But 90 percent of gas stations in China and 70% of the oil tanks, the air pollutant emissions is not consistent with national standards. To date, no its a real test, or discharge of excessive exposure and punishment enterprises.
In view of the status and problems of oil and gas recovery, should re-examine China's oil and gas recovery industry, from the current issue of the existence of basic science, engineering applications such as point of further analysis, the recovery of oil and gas industry to achieve greater successes.
The gas station vapor recovery, for example, the savings potential. Gasoline stations is the most volatile components out of the economic value of the light fraction. After completion of the transformation of volatile oil and gas recovery system will be closed out of the oil and gas in the new system, and eventually all the "catch" back to restore depot can use gasoline. According to oil experts, according to the current market price, gas stations gas emissions after the treatment finished, only in Jiangsu Province, Guangdong Province, respectively, per year can save $ 500 million. Therefore, the efficient collection and storage of oil and gas sealed and collected oil and gas focus, with good environmental benefits, social and economic benefits.
In accordance with state regulations, January 1, 2010, the Yangtze River Delta and Pearl River Delta city gas station, launched a new offloading oil and gas emission control standards, and other cities from January 1, 2012 onwards. January 1, 2015 onwards, major cities began to implement more stringent oil, fuel oil and gas emission control standards. According to national requirements, most of the city gas stations have become "fuel" gas station.
At present, Nanjing, Wuxi, Zhenjiang, Changzhou and other cities in the security market, normal, balanced on the basis of oil, according to "library, car simultaneously, before the petrol station," the principle of stage management, orderly manner, on the part of the oil station the recovery. Zhenjiang, for example, will be completed this year, 40 percent of the oil storage facilities, tankers, gas stations, oil and gas recovery management reform, the end of October next year will complete the remaining governance reform.
To encourage enterprises to actively use oil and gas recovery or vapor recovery technology development, solve the problem of inadequate funds, the State Council and the national authorities have introduced a number of supportive policies, boosting oil and gas recovery technology progress and application. Moreover, domestic support has also established a number of oil and gas recovery fund. Such as national science and technology projects in the planning system set up SME Technology Innovation Fund, the state key new product plan, such as dozens of Torch Program. These funds will be oil and gas recycling, organic waste gas purification products as a priority to support the object. In other words, oil and gas companies have plenty of opportunities to recycle a variety of fund grants to support the declaration, may even be able to apply to the national and provincial funds to support free of charge.
Oil and gas recovery is a complicated systematic project, is also a power in the interest of future generations to benefit future generations of business. Require government-led, business initiative to participate in full collaboration of various departments, the need to coordinate the work of the entire disk can be carried out well. Oil and gas recovery involves a number of departments to carry out the process will affect all departments of the original statutes and regulations, while also considering the stability and security of oil supply and other factors.