Design characteristics and commissioning summary of 380 kt/a sulfur recovery unit.

The 380 kt/a sulfur recovery device is the supporting environmental protection device for 12 000 kt/a refinery project of Sinochem Quanzhou Petrochemical Co., ltd, which adopted the domestic sel--developed SSR sulfur recovery process. The design characteristics and technological process of the large sulfur recovery unit were briefly introduced. The start commissioning problems under the condition of low load were analyzed and summarized to provide guidance for unit long-periodic steady running. Commissioning results showed that the sulfur recovery unit runs smoothly, the emissions concentration of sulfur dioxide in tail gas was far lower than the standards prescribed by the national environmental protection department, and sulfur products meet the requirements of superior grade sulfur in the GB/T 2449 - 2006 Sulfur for Industrial Use. Therefore, it has good environmental and economic benefits. [ABSTRACT FROM AUTHOR]