Recently, Sinopec PDH pilot plant was completed in Beihai refining and chemical Co., LTD. The project is Sinopec's first set of PDH pilot plant with independent intellectual property rights, which has strategic significance and practical significance for breaking foreign PDH technology monopoly, enhancing Sinopec's international competitiveness in the field of PDH and promoting the "oil conversion" process of Beihai refining and chemical company.