PECM Issue 46 2020 | Page 52

PUMPS PUMPS FOR CHINESE REFINERY SULZER Local manufacture of high-performance Sulzer pumps provides cost, time and service benefits Close collaboration between Sulzer specialists in Asia, Europe and the US was key to a complex project that allowed twelve sophisticated pumps from three individual designs to be manufactured at Sulzer’s China plant for the first time. Sulzer’s ability to bring the new models into production quickly allowed its customer to meet tight project timelines, as well as demanding technical and commercial goals. Market demand for fuel and products derived from oil and gas is being met by expanded exploration and the use of new technologies to maximize the potential of existing wells. The introduction of new technology is improving efficiency for the petrochemical sector, which in turn helps to reduce the cost of everyday items, from recycling bins to toothbrushes and the tires on your car. China’s hydrocarbon processing industry is the largest, and fastest growing, in the world. To meet demand and maintain competitiveness, companies across the sector are continually investing in new capacity and advanced technologies. For one refinery, that included a major project to upgrade and optimize its facilities. CHALLENGING START In 2016, the refinery took the decision to introduce new equipment across its plant, including a new ebullated bed hydroprocessing system using H-OilRC technology from a French process licensor. This system is designed to add value in the refining process by extracting valuable hydrocarbon products from heavy feedstock residues, which may contain high levels of solids and other contaminants. When it came to the selection of pumps for the new system, the refinery was aware that the nature of the various feedstocks created demanding operating conditions. The internal components can be exposed to high levels of wear and there is a significant potential for flow to be disrupted by large solid particles. The refinery knew that it was possible to obtain pumps designed specifically to CP feed pump for the ebullated bed residue hydrocracking application perform well in these conditions, but it was unable to find a local source of supply. Using equipment manufactured in China wherever possible is an important part of the refinery’s procurement strategy, as it seeks to localize supply chain and ensure ease of maintenance and support. GLOBAL EXPERTISE, LOCAL PRESENCE That’s where Sulzer was able to help. As a global pump specialist, Sulzer already had a significant presence in China, producing pumps in the Dalian factory since 1999, and at a second plant in Suzhou since 2010. Sulzer also has a long-standing relationship with the parent company of the refinery, supplying and supporting pumps at many of its facilities in the country. After discussing the requirements, oil and gas industry experts at Sulzer recommended two proven technologies from the company’s extensive portfolio. Just as importantly, they also agreed to manufacture the critical pumps in China. Like any major facility upgrade project, the ebullated bed system was planned to a tight schedule. So once the agreement was in place, Sulzer moved quickly to bring the new products to life in its China plants. MAXIMUM PERFORMANCE, MAXIMUM DURABILITY The first of those products was the CP multistage barrel pump designed to API 610 type BB5 specifications. The Sulzer CP design incorporates an axial-split volute casing, which is less susceptible to wear than alternative designs when a high level of abrasive solids are present. 52 PECM Issue 46