How much do we know about propane dehydrogenation (PDH) projects in our country? (Operating, Under Construction, Preparatory)
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Thanks to advantages such as low investment thresholds and production costs as well as short construction periods, the capacity of domestic propane dehydrogenation (PDH) plants has increased significantly. The PDH industry has developed rapidly in China, becoming the most competitive route for producing propylene. The following statistics show the status of propane dehydrogenation (PDH) units in China – those that are in operation, those under construction, and those in the preparatory stage (the information is incomplete; additional details are welcome). Operational status: In 2013, the PDH plant of Tianjin Bohua had a production capacity of 600,000 tons. In 2014, Ningbo Haiyue Co., Ltd. had a capacity of 600,000 tons; Zhejiang Weisat Petrochemical’s first phase had a capacity of 450,000 tons, and Shaoxing Sanyuan Petrochemical’s first phase also had a capacity of 450,000 tons. In 2015, Zhangjiagang Yangtze River Petrochemical had a capacity of 660,000 tons, while Wanhua Chemical had a capacity of 750,000 tons. In 2016, Hebei Haiwei Petrochemical had a capacity of 600,000 tons, and Ningbo Fuki Petrochemical had a capacity of 660,000 tons. In 2019, Weisat Petrochemical’s second phase had a capacity of 450,000 tons per year, and Juzhengyuan’s plant had a capacity of 600,000 tons per year. In total, 10 PDH projects (excluding mixed alkane dehydrogenation plants) were in operation, with a combined annual production capacity of 6.11 million tons.
This post was last edited by ZhiZheMing on 2020-6-16 at 10:48. PDH plants under construction: Fujian Meide Petrochemical – 660,000 tons; Zhejiang Hongji Petrochemical – 450,000 tons; Donghua Energy Ningbo – 660,000 tons. These plants are expected to come online in the first half of 2020. Shandong Tianhong Chemical – 450,000 tons; Sinochem – 600,000 tons; Zibo Haiyi Fine Chemicals Co., Ltd. – 250,000 tons; Formosa Plastics Industry (Ningbo) Co., Ltd. – 600,000 tons; Zibo Qixiang Tengda – 700,000 tons…… The total PDH production capacity will amount to 7.26 million tons per year.
Preliminary preparations: Jiangsu Jiarui Chemical Co., Ltd. – 600,000 tons; Jiangsu Xinpu Chemical – 900,000 tons; Guangxi Huayi New Materials Co., Ltd. – 750,000 tons; Donghua Energy (Maoming) – 1,000,000 tons ……
In recent years, there has been a significant increase in the import of domestic gas as well as in the production of natural gas locally; as a result, there is no shortage of raw materials for producing propylene from propane, so its production has also increased. Additionally, the polypropylene market has been performing well, which has also boosted the propane dehydrogenation market.
Shandong Refining & Chemical Energy Group and Fujian Yongrong Holding Group have reached an investment agreement regarding the “Yongrong New Materials 2×1000,000 tons/year propane-to-propylene and downstream new materials project.” The total investment amounts to approximately 39.6 billion yuan, and two production facilities capable of processing 1 million tons of propane per year into propylene as well as producing downstream new materials are planned to be built, with construction taking place in two phases.
On June 11, the 600,000-ton/year PDH unit of Shandong Binhua New Materials Co., Ltd.’s carbon three and carbon four comprehensive utilization project signed a general contract with Huisheng Engineering.
Preliminary preparations: Wenzhou Xiaomen Island is launching the Kaijin Lan Tian Polymer New Materials project (propane dehydrogenation to produce propylene) as well as a project for the comprehensive utilization of hydrogen energy. The total investment for this project is 12.5 billion yuan, with a total land area of around 980 mu. It is planned to build 2 propane dehydrogenation units with an annual capacity of 900,000 tons each, as well as 2 polypropylene production units with the same capacity. Construction of these facilities is scheduled to begin in 2020.
The Technology Management Department of CNPC launched a major industrial research project: an industrial application test of the complete set of technologies for producing propylene via propane dehydrogenation. Using the propane generated as a by-product from the catalytic cracking unit at Hohhot Petrochemical Company as raw material, a propane dehydrogenation plant with an annual capacity of 50,000 tons was built. The 50,000 tons per year propane dehydrogenation project is a set of non-metallic, environmentally friendly fluidized-bed catalytic propane dehydrogenation technology for producing propylene, which has independent intellectual property rights. It was developed by China University of Petroleum (East China) and East China Design Institute through nearly a decade of research and development. This technology has undergone pilot and pilot-scale tests, and the results of the pilot tests were preliminarily verified using a 10,000-ton industrial testing facility; the core technology has been granted a **patent license. At present, the feasibility study for the project has been approved, the review of the process package is complete, and various related tasks are being carried out in an orderly manner.