【Ten Years of Rapid Development in Chemical Equipment】1647–2011: China’s First domestically produced sulfur refining unit was built

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This post was last edited by Desert Fish on 2024-5-6 at 16:10. Happy May Day – safety first! Let’s give praise and support to the achievements in China’s chemical engineering technology and equipment. **********************[A Decade of Progress in Chemical Engineering Equipment] An ongoing update and summary thread; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Industry Forum) ***************** On December 26, 2011, China’s first domestically produced sulfur refining unit – the 20,000-ton/year sulfur refining plant at Yan’an Petrochemical Plant – successfully produced sulfur with a purity of 99.94% at 16:00 that day, with quality standards meeting national excellence levels. Previously, the sulfur products produced by domestic sulfur recovery units were mostly in the form of sulfur semi-finished products containing water and impurities. The commissioning of this set of equipment has improved the purity and quality of sulfur products, thereby increasing their added value. At the same time, it will significantly enhance the capacity to handle hydrogen sulfide produced by Yanchang Petroleum’s upstream production facilities, **reducing sulfur dioxide emissions and bringing substantial environmental and economic benefits. The installation requires an investment of 35.94 million yuan and consists of three units: a sulfur refining unit, a sulfur granulation unit, and a packaging and stacking unit. Sulfur is obtained from the sulfur-containing wastewater generated by the plant’s diesel hydrogenation unit, as well as from the hydrogen sulfide gas produced by the liquefied gas desulfurization and liquefied gas desulfurization and dewaxing units. Through solvent regeneration and wastewater stripping systems, this sulfur is sent to a sulfur recovery unit where it is converted into elemental sulfur with a purity of 65.05%, which is then further processed to produce refined sulfur with a purity of 99.5%. The sulfur granulation unit and packaging/stacking unit take the sulfur produced by the refining unit, granulate and package it again, to produce finished sulfur of qualified quality. 　 This set of devices features low consumption and high efficiency. Previously, the sulfur products produced by domestic sulfur recovery units were all in the form of semi-finished sulfur containing water and impurities. The commissioning of this set of equipment has reduced sulfur dioxide emissions, improved the purity and quality of sulfur products, and increased their added value.