With the rapid development of Chinese industry, the problem of environmental pollution is becoming more and more serious. Among them, the amount of sulfur dioxide discharged into the atmosphere is large, it can form acid fog and acid rain. This will cause serious harm to human and the environment, and is one of the most important air pollutants. Starting from the sustainable development strategy, China has increased the intensity of environmental protection. The environmental protection standards and regulations are increasingly strict, the control and governance of sulfur dioxide p pollution to the environment is an important content. GB31570-2015 "Pollutant Emission Standards for Petroleum Refining Industry" issued in April 2015 put forward stricter requirements for emission l limits of flue gas SO2 concentration of sulfur recovery units, among which the general area requires less than 400mg/Nm3, and key areas require less than 100mg/Nm3. Therefore, it t is urgent to consider the important work to increase the processing capacity of sulfuric acid containing gas, improve the recovery rate of sulfur, and make the exhaust emissions of the device reach the standard.

The company actively responds to the upgrading policy of national environmental protection industry, and has developed multi-functional coupling process technology of sulfur recovery and tail gas treatment. According to different raw gas, plant scale and customer needs, the company chooses appropriate coupling process technology route of sulfur recovery and tail gas purification, and overall optimizes the unit processes of sulfur recovery, hydro reduction and absorption and tail gas purification. To ensure that the emission index of the sulfur recovery unit is better than the most stringent, special area limit in the standard specification. And at the same time, it can eliminate the traditional redundant equipment and structures, and take into account the investment and operation cost to achieve the best balance and optimization. The key technology of this project is SWSR-1 sulfur recovery device and process, namely: no on-line furnace sulfur recovery + ion liquid circulation absorption tail gas treatment. It has obtained the national invention patent authorization, and has been in Yantai Wanhua contract to build an industrial unit, byproduct SO2 content: ≥99.5%; SWSR-2 process, using NaOH solution as absorber, absorption of SO2 in flue gas through acid-base neutralization reaction, Na2SO4 solution produced sent to the sewage treatment plant for treatment, the technology has been successfully applied and put into production in Sinopec Qingdao Refining and Chemical, Zhongjie Petrochemical and other sets of sulfur recovery equipment; SWSR-3 process, namely no on-line furnace sulfur recovery + liquid phase sulfur oxidization recovery combined process technology, can ensure that the mixed product sulfur meet the national standard of first-class requirements. The above technology can ensure the purification of exhaust emissions SO2<50mg/Nm3, NOx<50mg/Nm3, particulate <20mg/Nm3, H2S<5PPM, effluent water quality, including COD, etc.: COD<50mg/l, SS(suspended matter)<20mg/l, pH≈7, N-NH3=0, total nitrogen <80mg/l.

The company has carried out 29 research and development projects in the past four years, including 1 major science and technology innovation project in Shandong Province, 1 Zibo Talent Plan project, and 1 Linzi Talent Plan project. Among them, "Recovery of waste acid gas and high value application technology in Chemical industry", which is undertaken in cooperation with University of Chinese Academy of Sciences and China University of Petroleum, is a major scientific and technological innovation project of Shandong Province; The projects of "Pressurized sulfur Recovery Technology", "Multifunctional sulfur Recovery and Tail Gas Treatment Coupling Technology", "Acetic Acid Hydrogenation To Isopropyl Alcohol Combined Acetone Production Technology", "Design Technology of Photothermal power generation heat transfer storage System", "Development of Boiling Bed Hydrogenation Technology", "Development of Petrochemical sulfur Recovery Heating Furnace Engineering Technology", "Research on Continuous Production Process of insoluble sulfur" , "Refinery fuel cell hydrogen purification technology research and engineering" 9 projects by the expert review of Shandong Province has been identified as provincial key projects. The scientific research projects approved by the company are carried out around the needs of the main business, in line with the company's development and market demand, the scientific and technological achievements are advanced level, play a core support role the company's main products in the technical.

Serial Number	Project Level	Project Name	Project Approval Document	Start And End Time
01	Shandong Province	Rare earth rubber production technology	Lu Jing Xinji [2017] No.223 Sunway Engineering Fazi (2016) 2	2016.01－2020.12
02	Company Level	Claus combined with flue gas desulfurization (SWSR-2) technology	Sunway Engineering Fazi (2016) 2	2016.01-2018.12
03	Shandong Province	Supercharged sulfur recovery technology	Lu Jing Xinji [2017] No.223 Sunway Engineering Fazi (2017) 2	2017.01－2019.12
04	Shandong Province	Multifunctional coupling technology of sulfur recovery and tail gas treatment	Lu Jing Xinji [2017] No.223 Sunway Engineering Fazi (2017) 2	2017.01－2019.12
05	Shandong Province	Hydrogenation of acetic acid to isopropyl alcohol and acetone production	Lu Jing Xinji [2017] No.223 Sunway Engineering Fazi (2017) 2	2017.01－2019.12
06	Shandong Province	Design technology of heat transfer and storage system for photothermal power generation	Lu Jing Xinji [2017] No.223 Sunway Engineering Fazi (2017) 2	2017.01－2019.12
07	Company Level	Storage and transportation process organic waste gas cycle with no emission technology	Sunway Engineering Fazi (2018)01	2018.01-2019.12
08	Shandong Province	Development of boiling bed hydrogenation technology	Lu Gong Xinji [20191]115 Sunway Engineering Fazi (2018)01	2018.01-2020.12
09	Company Level	Alkylation and waste acid regeneration technology engineering	Sunway Engineering Fazi (2018)01	2018.01-2020.12
10	Company Level	Research and development of methanol synthesizer process and equipment design	Sunway Engineering Fazi (2019) No. 02	2019.01-2020.12
11	Company Level	Research and development of process and equipment design of temperature control converter	Sunway Engineering Fazi (2019) No. 02	2019.01-2020.12
12	Company Level	Development of hydrogen sulfide cracking technology	Sunway Engineering Fazi (2019) No. 02	2019.01-2021.12
13	Company Level	The low temperature methanol washing process of Sulfur recovery tail gas	Sunway Engineering Fazi (2019) No. 02	2019.01-2020.12
14	Shandong Province	Development of petrochemical sulfur recovery furnace engineering technology	Lu Gong Xinji [20191115 Sunway Engineering Fazi （2019）02	2019.05-2020.12
15	Major science and technology innovation project of Shandong Province	Chemical industry acid gas Recovery and high value utilization technology and application	Lukezi [2019] 135	2019.11-2021.12
16	Shandong Province	Study on continuous production technology of insoluble sulfur	Lu Gong Xinji [2020] No.8 Sunway Engineering Fazi (2020) 02	2020.01-2022.12
17	Zibo Talent Program Program Project	Development and application of catalytic materials and technologies for high temperature selective oxidation of H2S in chemical industry	Zibo Office No.13 [2020]	2020.01-2023.12
18	Company Level	Study on the side draw line of pressurized column for high concentration sour water stripping	Sunway Engineering Fazi (2020)03	2020.05-2020.12
19	Company Level	Combined technology of sulfur recovery and acid production	Sunway Engineering Fazi (2020)03	2020.09-2023.09
20	Company Level	Development of domestic technology for high efficiency strong cyclone burner	Sunway Chemical technology Fazi (2021) 03	2021.1-2022.12
21	Linzi Talent Program Project	Acid production technology for sulfur recovery tail gas treatment	Sunway Chemical technology Fazi (2021) 03	2021.1-2024.12
22	Company Level	Development of rubber localization technology	Sunway Chemical technology Fazi (2021) 03	2021.1-2021.12
23	Provincial	Research and engineering of efficient hydrogen purification technology for refinery fuel cells	Sunway Chemical technology Fazi (2021) 03 Lugong Xinji No.118 [2022]	2021.1-2022.12
24	Company Level	3D model design and smart PID associated design	Sunway Chemical technology Fazi (2021) 03	2021.1-2022.12
25	Company Level	Study on synthesis technology of calcium propionate	Sunway Chemical technology Fazi (2021) 03	2021.6-2022.5
26	Company Level	Study on synthesis of ethyl propionate by reactive distillation	Sunway Chemical technology Fazi (2021) 03	2021.7-2022.12
27	Company Level	Gasification step process for producing insoluble sulfur	Sunway Chemical technology Fazi (2022) 02	2022.1-2023.12
28	Company Level	Development of sulfur recovery of low concentration acid gas	Sunway Chemical technology Fazi (2022) 02	2022.1-2022.12
29	Company Level	Study on hydrogen liquefaction process	Sunway Chemical technology Fazi (2022) 02	2022.1-2022.12

Scientific Research Team

The company has a total of 156 people engaged in scientific and technological activities, including 16 research and development personnel, 127 technical personnel, 7 for production and business activities, 6 for management activities. The professional talents are spread over all majors including process, installation, materials, equipment, instrument, electrical, thermal engineering, storage and transportation, water supply and drainage, and civil structure. The company's scientific and technological personnel account for 42.51 percent of the total number of personnel. Among them, 36 have master's degree or above, and 118 have bachelor's degree, accounting for 75.64% of the scientific and technological personnel.

The scientific research personnel of the company are of high quality. With the professional knowledge of new product development and the ability of organization and development, the ability of scientific research and development of the company is strong. All the research and development personnel have signed the labor contract, and each of them takes more than 183 days to participate in the research and development projects.

The company introduced full-time national key talent engineering expert Mr. Liu Jian. The company also hired Mr. Zhengping Hao, the professor for Chinese Academy of Sciences, doctoral supervisor, Director from National Engineering laboratory of VOCs pollution control materials and Technology. He has won the National Outstanding Youth Science Fund, was selected "National New Century Talent Project". The company also introduced Mr. Li Debao to the experts committee, who has won" Young and Middle-aged Leading Talents in Science and Technology Innovation” authorized by The Ministry of Science and Technology ".

Wenqing Fan, a high-tech talent in the scientific research team, is a senior engineer with a PhD in industrial catalysis introduced full-time by the company. He has published 8 SCI papers (5 as the first author), which have been cited more than 1500 times; He has applied for 26 Chinese invention patents, 18 are authorized ones and 1 is PCT patent. And he has also developed 3 enterprise standards. He was awarded the second Prize of Science and Technology Progress of China National Chemical Group in 2020. He was also the high-level entrepreneurial and innovative talents in Fujian Province, the second core of Fujian Industry Leading Team, the fourth level of high-level introduced talents in Quanzhou City, and high-end talents in Quanzhou intelligent manufacturing industrial Cluster.

Juxiang Jing, the technical leader of the scientific research team, as the chief engineer and senior engineer of the company, led the completion of "Yantai Wanhua PO/AE integration project LPG refining and butane isomerization unit" and other projects won the awards of Sinopec Group, Shandong Province and Survey and Design Association. He is the core person of the company's proprietary technology of sulfur-containing sour water stripping process. As an expert, he was invited to give lectures to Sinopec and Qilu Petrochemical Company for many times, participated in the compilation of "Progress and Application of Sulfur Recovery Technology". He was also responsible for and has participated in a number of technical research and development projects, and was recommended as the basic engineering design review expert of construction projects in Shandong Province.

Ju Gao, the technical leader of the enterprise technology center, is the deputy chief engineer and senior engineer of the company. He has 7 invention patents, such as high temperature mixing valve, SWSR-6 sulfur recovery process and device, and 4 utility model patents, such as internal floating ball type sulfur seal leg. He Led the completion of more than 10 projects such as "The 1# Sulfur Recovery Unit Safety Update Project of Sinopec Qilu Branch", which have won awards from Sinopec Group, Shandong Province and National Consulting Association. In April 2014, he was selected as the third batch of young and middle-aged experts with outstanding contributions in Linzi District.

Tiejun Li, the technical leader of the scientific research team, is the deputy general manager and senior engineer of the company. He has 5 invention patents, such as sulfur recovery and tail gas treatment unit clean shutdown technology, sulfur recovery tail gas liquid phase treatment technology, etc. He has published more than ten papers; The research and development of “New technology of Reducing sulfur recovery plant SO2 emission" won the second prize of Science and Technology Progress award of Sinopec ec; He was invited to Sinopec Group Company for many times to give lectures on sulfur recovery advanced training class, and participated in the compilation of "Sulfur Recovery Technology Progress and Application" among refining process technology advanced training textbook series.

The technical leader of the scientific research team, Zhiling He, is the deputy chief engineer and engineering technology application researcher of the company. He owns 3 utility model patents such as multi-functional tail gas incinerator of sulfur recovery unit, and is the core author of 3 proprietary technologies, such as the application of rubber film sealed dry gas cabinet in the petrochemical industry, sulfur recovery of no on-line furnace and tail gas treatment process technology. He has published more than ten papers; Editor-in-chief of petrochemical industry standard SH/T3158-2009 "Petrochemical shell and tube Type waste heat Boiler", participated in the review of SH/T3416 "Petrochemical casing Crystallizer" and other standards; He has b been invited to give lectures on the advanced training course of sulfur recovery in Sinopec Group for many times, and participated in the compilation of “Progress and Application of Sulfur Recovery Technology" in the advanced training textbook series of refining process technology.

The technical leader of the scientific research team, Tianyi Wu, is the deputy chief engineer of the company's automatic control specialty and the researcher of engineering technology application. He has published more than 40 papers. He is the technical committee member of the National Automatic Control Design Technology Center of Chemical Industry, and the editorial board member of the magazines of Petrochemical Automation and Instrument Intelligence. He participated in the audit of more than a dozen automatic control design specifications, such as Engineering Design Specification for Decentralized Control System (HG/T 20573 - 2012), which was presided over by National Instrumentation Design Technology Center.

Transformation of Scientific and Technological Achievements

The high transformation rate of the company's achievements is more obvious in the proportion of high-tech income in the total revenue. In 2021, the technological innovation achievements adopted by 82 high-tech products (services) of the company all belong to the scope of "high-tech services" in the fifth part of "High-tech Fields Supported by the State" (No. 32 Document of Guo Ke Fuhuo [2016]). High-tech products (services) accounted for 77.23% of the total revenue.

Partners

The company has actively established various forms of cooperative relations with universities and research institutes. The company has established strategic cooperative relations with SINOPEC Dalian Petrochemical Research Institute, Dalian Jiachun Gas Purification Technology Development Co., LTD., Northeast Refining and Chemical Engineering Co., LTD., Shanghai Beenereng Chemical Technology Co., LTD., Beijing Axa Global Technology Development Co., LTD., etc. It has established long-term technical cooperation with universities such as University of Chinese Academy of Sciences and University of Petroleum, and has carried out substantive cooperation with scientific research institutions such as Xi 'an Aerospace, Research Center for Eco-Environment of Chinese Academy of Sciences, Shanxi Institute of Coal and Chemical Engineering of Chinese Academy of Sciences, Chengdu Huaxi Technology Co., Ltd. in the fields of environmental governance, process equipment, process technology and new product research and development. Sunway Chemical effectively organize and use social resources for the company's technological innovation services, strengthen exchanges and cooperation with domestic and foreign counterparts, jointly develop strategic research, promote the progress of research and development technology, and cooperate with the Chinese Academy of Sciences and other units to apply for the Shandong Province major scientific and technological innovation project "Resource recovery and high-value utilization technology and application of waste acid gas in chemical industry". The project has been successfully completed with 14.65 million yuan of provincial financial funding. In 2019, Zhengping Hao, the specially invited expert of the company, was selected into Zibo Talent Program and undertook the "development and application of high temperature H2S selective oxidation catalytic materials and technologies in the chemical industry", which is being organized and implemented as planned and has achieved phased achievements.