The hottest seven projects have a new production c

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With 7 projects and 1.32 million tons of new capacity put into operation, will the supply and demand pattern of propylene oxide change

7 projects and 1.32 million tons of new capacity will be put into operation, and the supply and demand pattern of propylene oxide will change

On February 25, 2021

February 19, 2021, the spring major projects in Zibo City, Shandong Province were started intensively, involving 25 key projects in Zibo City, with a total investment of 12.5 billion yuan. Qixiang Tengda 300000 t/a propylene oxide project and Shandong Jincheng Petrochemical Group Qinghe Chemical Technology Co., Ltd. 300000 t/a propylene oxide and supporting 900000 T/a hydrogen peroxide project are among them. After the rapid capacity expansion in previous years, although the capacity expansion speed of propylene oxide has slowed down, the excess alarm has been sounded, and it is necessary to lay out the coating in advance to resolve the risk


chlorohydrin method accounts for the largest proportion and has been banned in the new project

propylene oxide is a very important organic chemical raw material. It is the third largest propylene derivative except polypropylene and acrylonitrile. It is mainly used in the production of polyether polyols and propylene glycol. It is used to produce polyurethane (PU) esters, unsaturated polyester esters, non-ionic surfactants, oil field demulsifiers, plasticizers, automotive brake fluids, flame retardants, lubricants, propylene carbonate Dimethyl carbonate, propylene glycol ether, hydroxypropyl methyl cellulose and other important raw materials of chemical products are widely used in chemical, automotive, construction, food, tobacco, medicine, textile and cosmetics industries

qixiangtengda 300000 t/a propylene oxide project, with an investment of 3.9 billion yuan, adopts the advanced hydrogen peroxide technology jointly owned by Evonik and ThyssenKrupp. The products are mainly used to produce polyether polyols and polyurethane, and it is planned to be completed by the end of 2021

the 300000 t/a hydroperoxide propylene oxide and supporting 900000 t hydroperoxide device project of Qinghe Chemical Technology Co., Ltd. of Shandong Jincheng Petrochemical Group, with a total investment of 3.42 billion yuan, adopts the technology of China Tianchen Engineering Co., Ltd., and is a key project based on propylene to develop towards the high-end polyether Industrial chain and high-end polyolefin new materials

domestic methods for preparing propylene oxide mainly include chlorohydrin method, CO oxidation method, hydrogen peroxide method for propylene oxide (hppo), cumene oxidation method for propylene oxide (chppo). See Table 1 for the advantages and disadvantages of various production processes and technology owners. Among them, chlorohydrin method accounts for the largest proportion. Only one domestic enterprise adopts chppo process, and there is no production enterprise adopting air (or oxygen) direct oxidation method. Due to the serious corrosion of equipment and large amount of production sewage, the chlorohydrin process has been listed in the restricted category of the catalogue for the guidance of industrial restructuring (2019 version), and the new chlorohydrin process units have been prohibited since 2015. CO oxidation and hppo will be the main technologies for propylene oxide production in China in the future

Table 1 advantages and disadvantages of propylene oxide production processes and technology owners

in the production processes of propylene oxide, the chlorohydrin process has banned the construction of new chlorohydrin process units since 2015; Hppo has relatively few industrialized devices due to imperfect technology, only Sumitomo, Japan, and high operating costs; The technology of air (or oxygen) direct oxidation is in the experimental stage, and the technology is not mature, so it may take time for industrialization. Therefore, CO oxidation and hppo are the main technologies for propylene oxide production in China in the future. To understand the latest technological progress, please pay attention to the conference on the comprehensive utilization of chemical and X light hydrocarbons "

from the perspective of projects under construction and planning in the past two years, domestic CO oxidation method and hppo method go hand in hand, accounting for about half each. With the arrival of the construction climax of ethylene benzene CO oxidation propylene oxide unit, a large number of CO produced styrene will be put on the market, which will significantly increase the market risk of styrene. This is also a major constraint to the development of ethylene benzene CO oxidation propylene oxide project in the future. The market sales of CO produced styrene directly affects the benefit of propylene oxide project. When choosing ethylbenzene CO oxidation process, we must deeply study the market of CO produced styrene

the domestic process of propylene oxide is emerging.

with the acceleration of the localization research and development and large-scale application of propylene oxide, China's independent technology of propylene oxide is catching up, although the new process lacks a long cycle. 3. The ultra long travel can fully meet the testing of ultra large deformation rate materials; Operation experience, but through continuous improvement and improvement, will gradually narrow the gap with the international

at present, the domestic production capacity of propylene oxide chlorohydrin method is about 1.8 million tons/year, accounting for more than 50%. With the continuous strengthening of national control over environmental protection, it is inevitable to convert the old and new production capacity of propylene oxide industry. China's independent research and development of propylene oxide new process is expected to reach the international advanced level, and propylene oxide projects using domestic processes are also emerging

the 150000 ton/year chppo propylene oxide project of Sinopec Tianjin Branch was started on July 16, 2020, using the technology independently developed by Sinopec Shanghai Petrochemical Research Institute, which is the first application in China

the 120000 ton/year propylene oxide project of hongbaoli group Taixing Chemical Co., Ltd. was successfully put into trial production in early 2019. Recently, the safety completion acceptance passed the review, marking that the project has basically completed the review and evaluation of applying for the safety production license

in addition, Wanhua Chemical Group Chemical Co., Ltd. plans to invest 32 RMB 500million. A 300000 t/a propylene oxide co production plant with 650000 T/a styrene will be built by using the complete set of technology of ethylbenzene CO oxidation to produce propylene oxide. It is expected to be completed and put into operation in 2021. The 300000 t/a propylene oxide and 780000 T/a tert butyl alcohol projects of Shandong Binhua new materials Co., Ltd. are also planned to be completed and put into operation in 2021

the concentration of projects will lead to the crisis of overcapacity

for a long time, the supply of propylene oxide in China is in short supply, which has stimulated the large-scale expansion of domestic manufacturers. 2012-2015 is the period of rapid release of propylene oxide production capacity. With the new production capacity basically digested by the new demand, the production capacity growth slowed down gradually after 2015. By the end of 2020, the domestic propylene oxide production capacity was 3.282 million tons/year, and Shandong Xinyue, Jilin Shenhua and CNOOC shell ranked among the top three in China, with 350000 tons/year, 300000 tons/year and 290000 tons/year respectively. In 2021, many propylene oxide projects will be put into operation in China

Table 2 statistical table of China's propylene oxide new capacity in 2021 (10000 tons/year)

it is estimated that 1.32 million tons/year of new capacity will be added in 2021. The rapid expansion of capacity will have an impact on the propylene oxide Market. According to the relevant report of Huaxin consulting, the total capacity of propylene oxide in China will be 3.21 million tons/year in 2020; Capacity utilization rate is 80%. From 2020 to 2025, China will add 4.62 million tons of propylene oxide capacity per year, with an average annual growth rate of 19.5%. In 2020, the demand for propylene oxide in China was 3.08 million tons, the self-sufficiency rate of contact information was 83%, and the average annual growth rate of demand was 7.7%; By 2025, China's propylene oxide production capacity/demand and total supply/demand will be 176% and 187% respectively. At that time, the propylene oxide industry will undergo a comprehensive surplus stage

in the future, we should explore overseas markets and pay attention to integrated development.

with the arrival of the climax of domestic propylene oxide construction, the risk of excess supply in the propylene oxide Market is gradually increasing. Domestic demand will be completely self-sufficient, and excess products will become inevitable. Some enterprises have to seek the international market, and the profit space of propylene oxide will be greatly narrowed

high efficiency

most of the overseas propylene oxide industry is an integrated product chain based on the petrochemical industry. Propylene, ethylbenzene, isobutane, isocyanate, etc. can be exported or used for their own use according to price changes, which does not damage the overall economic benefits of enterprises and is conducive to improving the competitiveness of enterprises. Domestic enterprises should refer to their experience and consider the source of raw materials and the development of downstream products as a whole when building propylene oxide production plants. It is best to build high-value devices with integrated upstream and downstream support, form a development pattern of the whole industry chain, and effectively reduce the competitive pressure caused by the concentrated release of future production capacity

it should also be noted that under the background of stricter environmental protection, it is expected that the backward production capacity will gradually withdraw from the market, the proportion of chlorohydrin production capacity will further decline, the propylene oxide industry will be in a state of continuous transformation and upgrading, coupled with the low operating rate of some devices and equipment using new technologies, unstable production, strong downstream polyurethane demand and other factors, China's propylene oxide may maintain a tight balance between supply and demand in a short period of time, resulting in a part of waste

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