December 27 , from Sinopec Baling Petrochemical Company announced the news from the company and the Shanghai Petrochemical Research Institute , Shanghai Engineering Co., Ltd. and East China University of implementation of 120,000 tons / year styrene sets of energy-saving technology development projects , has been December 10 passed the technical appraisal of Sinopec organization. The project is the second generation of energy-efficient applications styrene innovative technology and intellectual property , has applied for 17 patents , of which 11 have been authorized .
Equipment calibration and industrial operation results show that the purity of 99.94% styrene , ethylbenzene unit consumption of 1.058 t / t styrene ; compared with conventional processes, 16.6 tons of steam per hour, saving , saving 845 tons of recycled water , and low pressure steam steam consumption has dropped significantly reduce overall energy consumption of more than 70 kilograms of standard oil , saving more than 23% , economic and social benefits significantly .
It is understood , Shanghai Petrochemical Research Institute led the development on the basis of its successful industrialization of styrene on the set of technologies to the international advanced level as a benchmark, from start to reduce overall energy consumption of the styrene unit continued research and innovation, in 2010 successfully developed a second styrene -generation energy-efficient technologies . The technique involves sequential separation constant boiling heat recovery energy saving technology and efficient dehydrogenation catalysts , new azeotropic heat exchanger, low drop dehydrogenation reactor and other new technologies.
According to reports, the traditional process , the distillation zone ethylbenzene / styrene vapor rely on Tata top circulating water cooling , the reaction zone feed ( ethylbenzene and water mixture ) rely on steam heating . Constant boiling heat recovery technology will combine the above two , the low-temperature heat ethylbenzene / styrene vapor contained in the tower top for heating the reaction feed ( ethylbenzene and water mixture ) , saving a lot of circulating cooling water and heated steam.
August 2010 , Baling Petrochemical investment 496 million yuan , the first time the use of second-generation energy-efficient building technologies styrene 120,000 tons / year styrene plant . June 23, 2012 , the device outputs a purity of 99.98% of the qualified styrene, drive to achieve a successful feeding . In June, Olefins Division of Baling Petrochemical styrene plant tissue 100 % load calibration, product purity and a number of indicators in line with or better than the design value , the order of the separation device using constant boiling heat recovery technology energy-saving effect is remarkable. Device not only has good maneuverability , but also has greater flexibility under different load conditions , have a good energy saving effect .
Styrene is the main raw material thermoplastic rubber SBS, SEBS and other products . To reduce production costs, based on past Baling Petrochemical styrene sets technology development and industrial applications , the focus of research and development of energy-efficient set of technologies styrene . 2010 technical program to complete the project as a whole , unit process simulation , material balance and heat balance calculations, key equipment development, research and process control solutions design , craft kits for the preparation and review ; 2011 to complete the plant construction .
