By Qilu petrochemical research and development of sulfur recovery complete sets of technology so that the concentration of sulfur dioxide emissions to meet the new national standards, control of less than 100 milligrams per cubic meter, and successfully applied to more than 200 sets of devices. Since July 1, the state will implement the sulfur dioxide emission standard for the new sulfur plant tail gas, requiring emission concentrations in key areas to drop by 90% to below 100 mg / m3. Sinopec Qilu Petrochemical Research Institute developed by the sulfur of new environmental technologies, so that more than 200 sets of sulfur devices cracked compliance emission problems, effectively help enterprises clean production. In the process of crude oil processing, the sulfur plant is indispensable. All the acid gases produced by the oil refining should be recovered. During this process, some sulfur dioxide emissions are inevitably generated. With the social and economic development, the state control over sulfur dioxide emissions more stringent, higher and higher standards. According to the current standard, sulfur dioxide plant sulfur dioxide concentration limit is 960 mg / m3. The forthcoming new standard stipulates that emission concentration limits should be below 400 mg / m3 in general areas and below 100 mg / m3 in key areas. This is a tremendous pressure on over 300 units of sulfur in China. As the sole R & D unit for sulfur recovery catalyst in Sinopec, Qilu Petrochemical has nearly 50 years of sulfur production history and has always been committed to the R & D and promotion of sulfur-based environmental protection technologies. The low level of sulfur dioxide emission has always been superior to the national standard. Since the 1970s, Qilu Petrochemical Research Institute started the R & D of sulfur recovery catalyst with the support of the relevant departments of the headquarters of the group company. It has accumulated rich experience in this field and maintained its leading position in the world. Through unremitting efforts, this technology breakthrough in Qilu Petrochemical made a major breakthrough in 2013, and the new sulfur recovery catalyst increased sulfur recovery rate to 99.99%. The technology was first applied to the company's refinery annual capacity of 80,000 tons of sulfur plant, the results of sulfur dioxide sulfur dioxide emissions concentration of less than 100 milligrams per cubic meter, compared to 960 milligrams per cubic meter of national emission standards, almost created Environmental miracle, a set of capacity of 100,000 tons of sulfur plant, the annual reduction of 380 tons of sulfur dioxide emissions. Dajian Wen, dean of Qilu Petrochemical Research Institute, said: "This technology has successfully strangled the throat of sulfur dioxide emissions." Relying on this technology, Qilu Petrochemical formed a complete set of technologies to reduce sulfur dioxide emissions from sulfur installations. It has successively applied for more than 60 domestic patents and won 10 provincial and ministerial scientific and technological achievements awards. It has become one of the 26 preponderant technologies publicly recognized by the group companies. In June 2015, the Group started to popularize the complete set of technologies of Qilu Petrochemical System-wide on the whole system and carry out tail gas reforming on all sulfur devices. At the same time, other domestic enterprises have also come in, contact the introduction of this technology. Up to now, there are already 24 domestic enterprises and Qilu Petrochemical signed an agreement on the transfer of sulfur use of environmental technology, involving more than 50 sets of sulfur devices. Including other ways of using, the technology has been successfully applied to more than 200 sets of devices in China, which has a significant impact in the industry. The expert group of Sinopec Energy Conservation and Environmental Protection believes that "the comprehensive technology level has reached the international advanced level." Within Sinopec, 22 sulfur installations were completed using this technology in the first half of this year. Up to 28 sets of sulfur installations using this technology have been established, and the sulfur dioxide emission concentration is controlled below 100 mg / m3.
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