【Major Industrial Equipment in the Chemical Industry】353 – China’s first ultra-large-scale high-temperature styrene plant exhaust screw compressor unit put into operation
Thread Content
This post was last edited by Desert Fish on 2022-6-17 07:19. Recently, the \"400,000 tons/year styrene plant exhaust gas compression unit\", a major domestic production project of Sinopec developed jointly by CSIC Institute 711, Sinopec Maoming Petrochemical, and Sinopec Shanghai Engineering Company, was successfully put into operation at the Maoming Petrochemical site. This is the first screw compressor unit for exhaust gas in a super-large high-temperature styrene plant in China.
This project is currently the largest styrene plant in operation in China, with its main equipment being 800-series screw compressors developed by the 711 Institute. The dehydrogenation off-gases generated upstream are pressurized and then sent to the PSA hydrogen recovery unit downstream for reuse.
On August 27, 2019, the 816mm screw exhaust compressor – the first domestically produced ultra-large-scale model of its kind for Anhui Haoyuan Chemical Group Co., Ltd.’s 260,000 tons per year styrene production facility – has been in operation successfully for 22 days. The successful application of 816mm screw compressors in domestic styrene plants has ended the practice of relying on imported compressors for exhaust gas treatment in such plants in China, marking that the country has reached world-class levels in the field of screw compressors. The 816 extra-large styrene exhaust screw compressor was developed through independent research by the 711th Research Institute of CSSC, and it is the first of its kind in China. Compared to the ?630mm rotor used previously, the F rotor of the screw compressor employed in the 260,000 tons/year styrene plant has a diameter of ?816mm, which is currently the largest of its kind in China. This screw compressor reduces investment by 50% – for the same production capacity, 2 screw compressors would be required if the 630 model were used; it also cuts energy consumption by over 10%, resulting in annual cost savings of 1.2 million yuan based on a savings of 1 ton of steam per hour; its footprint is reduced by 80%; the construction period is short and the operation process is simple; the reduced rotation speed lessens wear on vulnerable components, thereby extending their service life; each unit has a high air delivery capacity, which contributes to process stability.
1. Love can create miracles; the charm of everyday life is what makes it romantic. 2. You give it up the moment you get it. 3. What cannot kill you will make you stronger. 4. As long as you don’t give up, life won’t defeat you. 5. People can be destroyed, but not defeated. 6. Language can be the warmth of June, or the cold of the three winters. 7. Life won’t always go as you wish; it’s the ups and downs that make up life. 8. Education is about lighting a fire, not filling a bucket with water. 9. Do the things at hand well, and love those around you. 10. The pessimism of adults lies in thinking that everything is taken for granted. 11. Difficulties are an inevitable part of the path; pessimism is foresight, while optimism is wisdom. 12. I love selling books; I am selling the ideals of humanity.
Your participation is the greatest support for the forum. Click on the blue link to access it: The 【Haichuan Equipment Guessing Game】 series is being updated continuously in 2022; all forum members are welcome to take part actively! https://bbs.hcbbs.com/thread-2079686-1-1.html Summary post of the 【Major Chemical Equipment in China】 series https://bbs.hcbbs.com/thread-3312079-1-1.html