On Aug. 30, SNEI achieved successful high-quality interim handover of the 140kt/a Sulfur Recovery Unit (SRU) of YPC Refinery Revamp Project, SNEI’s first EPC project within YPC region. On Oct. 8, the SRU was officially handed over to the Owner by SNEI’s EPC PMT for SRU of YPC.
The 140kt/a SRU is a relatively independent unit in the YPC Refinery Revamp Project, which demonstrates the Project’s initiative for environmental friendliness. The new SRU is designed mainly to handle the high concentration of H2S sour gas by purifying the high concentration sour gas and ammonia-containing sour gas through the process adjustments. After purification, the tailgas emission will meet the requirements specified in the latest national standard, which will significantly reduce pollution to the atmosphere due to direct emission of toxic and hazardous gases. In the meantime, sulfur and liquid ammonia are obtained as products during the sour gas purification process, which will greatly reduce atmospheric pollution due to direct gas emission.
The SRU is one of the four process units of YPC Refinery Revamp Project. The duration of the project is 20 months from signing the EPC framework agreement and commencement of design in January 2012 to the interim handover. Great efforts have been made by the PMT in order to deliver the project with high quality. In terms of design, requirements given in the basic engineering design are strictly followed in order to meet the Owner’s requirements. Technical proposals were prepared carefully, and value engineering was carried out to ensure advanced and reasonable technology for the SRU. Multiple PDS reviews were conducted in order to ensure design quality; In terms of procurement, requirements by the head office procurement tendering and the framework agreement were strictly followed. By following the principle of reasonable cost control, detailed plans are developed in terms of qualification of vendors, selection of successful bidders, control of quality and progress, and logistics, etc. Material tracking and inspection were properly carried in a timely manner, and efforts were strengthened particularly in terms of procurement for long-lead items and bulk materials; In terms of construction, plans were carefully prepared and strictly implemented, efforts were strengthened for process control and management, and the site safety and quality manage is all under control. According to statistics, the one-time pass rate for civil is 100%, overall one-time pass rate for welding is up to 97%, one-time pass rate for static equipment erection is 100%, unit energizing is successfully achieved at one try, and quality pass rate for equipment, materials and fittings is 100%, and pass rate for individual work is 100%. Accumulative safety man-hours for the project are 1,718,895h. The project has won No.1 in several comprehensive evaluations by the Owner, and there are no safety or quality incidents. After the successful interim handover and handover/takeover, the PMT will make all efforts to shift the role from construction phase to commissioning phase, and also carry out the punch-list and interfacing activities, so as to ensure the successful start-up of the unit.