Propylene oxide industry hotly discusses crisis and opportunity in the "dual carbon" era

The propylene oxide industry in the "dual carbon" era will enter a new round of reshuffle, and the path of industrial upgrading will become increasingly clear.

This forum was co-sponsored by China Chemical Industry News Agency Co.

Zhang Yong, deputy editor-in-chief of "China Chemical Industry News" Co.

　"China Chemical Industry News" agency deputy editor Ltd.

From a geographical point of view, China, as the largest production and sales location in Asia, has ushered in a new cycle of production capacity expansion

Liu Zhun, Chairman of Jiangsu Yida Chemical Co.

Liu Zhun, Chairman of Jiangsu Yida Chemical Co.

Lv Xiaodong, an expert from Sinopec Research Institute of Economics and Technology: The petrochemical industry faces new problems and opportunities during the 14th Five-Year Plan

Sinopec Economic Research Institute expert Kenneth Lu: "Fourteen five" petrochemical industry is facing new problems and opportunities in the petrochemical Economic Research Institute expert Kenneth Lu: "Fourteen five" petrochemical industry is facing new problems and opportunities "Fourteen five" is facing the petrochemical industry New problems and opportunities

China is the world's largest producer and consumer of petrochemical products, but the industry still faces some problems

Entering the "dual carbon" era, electronic information, new energy (electric vehicles), high-end equipment (aerospace, aerospace), energy conservation and environmental protection (water treatment), and medical health (medical care) industries are all areas of concern.

Zhao Jun, General Manager of the Strategic Development Department of Sinochem International Chemical Materials Business Unit: China's propylene oxide industry has a strong development momentum

The general manager of strategic development of international chemical raw materials division Zhao: China propylene oxide industry development momentum in chemical raw materials, general manager of international business department of strategic development Zhao: China propylene oxide industry development momentum China propylene oxide Industry development momentum is strong

The chlorohydrin process has a simple process and small investment, but a large amount of saponification waste liquid and waste residues are generated during the production process, and the pollution is large, and it will gradually withdraw from the market

With the implementation of the "dual carbon" policy, the overall operating rate of China's PO is expected to show a downward trend, with the chlorohydrin method having the greatest impact; from the raw material side, propylene is the most important factor influencing costs

Sun Jie, Deputy General Manager of Jiangsu Yida Chemical Co.

Sun Jie, deputy general manager of Jiangsu Yida Chemical Co.

He Chenggang, general manager of Changzhou Ruihua Chemical Engineering Technology Co.

He Chenggang, General Manager of Changzhou Ruihua Chemical Engineering Technology Co.

Fu Qi, Chief Engineer of Yichang Xingfa Group Co.

　Yichang Xingfa Group Co.
, Ltd.
Chief Engineer Fu Qi: with advanced technology reduce the anthraquinone process hydrogen peroxide impurities　Yichang Xingfa Group Co.
, Ltd.
Chief Engineer Fu Qi: with advanced technology reduce the anthraquinone process hydrogen peroxide impurities with advanced technology reduce the anthraquinone process hydrogen peroxide Impurity

　　The production of hydrogen peroxide is mainly based on the anthraquinone method.
Impurities and impurities generated during the production process may have an impact on PO
.
Impurities in hydrogen peroxide products mainly include total carbon, metal ions (in the equipment and raw materials), non-volatile matter (inorganic salts, main phosphate), and free acid
.

　　Yichang Supeng Technology Co.
, Ltd.
, a subsidiary of Xingfa Group, specializes in the production of hydrogen peroxide complete sets of technology licenses and supporting raw materials.
Aiming at the problem of impurities, the company has made the following improvements to the hydrogen peroxide process used in HPPO production: First, replace it with non-phosphate additives H₃PO₄ greatly reduces the phosphate coverage of PO catalyst formed by H₂O₂
.
The second is to improve the catalyst.
The oxidation reaction adopts a single-tower countercurrent oxidation process, which greatly shortens the reaction time, and the oxidation conditions are more mild, which reduces the oxidation side reactions
.
The third is to completely use methyl cycloethyl acetate solvent
.
Fourth, since phosphoric acid is not used, metal ions are naturally reduced, and free acid is also reduced
.
In addition, in view of the country's strict control of energy consumption indicators, the use of single-tower countercurrent oxidation and single-tower rectification concentration in Su Peng's second-generation technology also reduces the energy consumption of product production
.

　　Zheng Zhiyun, Technical Manager of Ningbo Zhenhai Refinery and Chemical Co.
, Ltd.
: Strengthen process safety management and improve the safety level of PO/SM devices

Ningbo Zhenhai Refining & Chemical Co.
, Lyondell Chemical Technical Manager Zheng Zhiyun: strengthening process safety management to enhance the PO / SM level of safety equipment Ningbo Zhenhai Refining & Chemical Co.
, Lyondell Chemical Technical Manager Zheng Zhiyun: strengthening process safety management to enhance the PO / SM security level means strengthening the process Safety management improves the safety level of PO/SM devices

　　Safe production is the lifeline of an enterprise
.
The PO/SM reaction involves peroxidation, epoxidation, dehydration, and hydrogenation
.
It is particularly important to strengthen the identification and control of major process safety risks .
We have established a process safety management module to strengthen risk-based process safety management (17 elements)
.
Commitment to process safety, including process safety culture, standard compliance, process safety capabilities and training, full participation, communication with risk-takers; understanding of hazards and risks, including process safety information, hazard identification and risk evaluation; managing risks, Including operational discipline and procedures, safe operation permits, equipment integrity, contractor management, change management, safety inspections before driving, emergency management; lessons learned, continuous improvement, including incident investigation, measurement indicators and performance appraisal, compliance review and Continue to improve
.
In the production management process, we focus on strengthening risk management centered on process safety management
.

　　Yin Jinpeng, engineer of Liming Chemical Research and Design Institute Co.
, Ltd.
: Supporting HPPO process with high-quality hydrogen peroxide technology

Liming Chemical Research and Design Institute Co.
engineer Yin Jinpeng: high-quality technical support hydrogen peroxide HPPO process Liming Chemical Research and Design Institute Co.
engineer Yin Jinpeng: high-quality hydrogen peroxide HPPO process technology supporting high-quality hydrogen peroxide Technology supporting HPPO process

　　Liming Institute is the founding unit of the domestic anthraquinone fixed bed process.
For more than 50 years, it has been committed to the advancement of hydrogen peroxide technology.
Its process technology, engineering design and supporting palladium catalyst products have repeatedly achieved industry firsts, and have won many National awards
.
At present, Liming Institute is the only professional company in China that combines technology research and development, engineering design, and research and development and production of key catalyst materials.
It can provide high-quality hydrogen peroxide production technology supporting the HPPO process
.

　　Liming Institute’s hydrogen peroxide technology has designed and built 93 sets of hydrogen peroxide plants in China, including 47 sets of more than 100,000 tons, 19 sets of more than 200,000 tons, 2 sets of more than 300,000 tons, and 2 sets of more than 400,000 tons.
The total production capacity exceeds 10.
95 million tons (27.
5% H₂O₂), and it has been exported to Indonesia twice
.
Liming Institute’s supporting HPPO process hydrogen peroxide technical solution has the advantages of large-scale hydrogen peroxide device, high product quality (purity, concentration), lower production cost of fixed bed device, and only 60% of the investment cost of fluidized bed
.
And there are 5 core technologies
.

　　Wang Jing, General Manager of Liaoning Zhongzhou Deshui Environmental Protection Technology Co.
, Ltd.
: Solving the problems of HPPO wastewater treatment technology and application

　Liaoning boat was water Environmental Protection Technology Co.
, Ltd.
General Manager Wang Jing: crack HPPO wastewater treatment technology and application problems　in Liaoning boat was in the water Environmental Protection Technology Co.
, Ltd.
General Manager Wang Jing: crack HPPO wastewater treatment technology and application problems to crack HPPO technology and wastewater treatment Application problems

　　Liaoning Zhongzhou Deshui Environmental Protection Technology Co.
, Ltd.
is a national high-tech enterprise integrating technology research and development, process design, engineering project general contracting, environmental protection technology product development and sales.
It has a wealth of wastewater treatment general contracting engineering design, management, Construction and commissioning experience, to solve the problems of wastewater treatment and resource utilization for customers
.

　　The HPPO process propylene oxide process wastewater mainly includes PO production wastewater and H₂O₂ production wastewater
.
The characteristic is that there are many kinds of organic matter, and the proportion of heterocyclic substances is large; there are many biologically toxic substances; there are many nitrogenous organic matter, and the total nitrogen content is high; H₂O₂ production wastewater contains more oily substances
.

　　In this regard, Zhongzhou Deshui Company has developed a proprietary HPPO wastewater treatment technology process.
One is to carry out a full set of biological treatment methods, using classified collection + pH adjustment + biological regulation pond + two-stage anaerobic organisms + aerobic biological oxidation + two Sedimentation tank + drainage process; the second is to collect 5 streams of wastewater (3 shares of propylene oxide + 2 shares of hydrogen peroxide) into 2 categories.
The alcohol-containing wastewater is subjected to biochemical adjustment + anaerobic treatment, and other wastewater is subjected to Fenton oxidation + neutralization sedimentation tank , The effluent and sludge are discharged to the integrated sewage station in the plant for treatment
.

　　Fu Mingtao, Marketing Director of Edwin Trading (Shanghai) Co.
, Ltd.
: Vacuum technology helps the propylene oxide industry chain

Adefovir Wards Trade (Shanghai) Co.
, Ltd.
Marketing Director Fuming Tao: Vacuum technology help propylene oxide chain adefovir Wards Trading (Shanghai) Co.
, Ltd.
Marketing Director Fuming Tao: Vacuum technology help propylene oxide chain vacuum technology Helping the propylene oxide industry chain

　　Vacuum is used in various fields of chemical production and plays a key role
.
Including saving energy, such as reducing steam pressure; help separation, such as distillation under reduced pressure; increasing the yield, such as extracting a reversible reaction product; speed the drying process; protecting a heat sensitive product; prevent oxidation; degassed assist molding material
.

　　In the different processes of the PO industry chain, the company's flexible solutions can meet the needs of different customers
.
Specifically, if the vapor spray/liquid ring scheme is used in the co-oxidation method, the degree of separation of the crude product is improved, and the purity of the final product is further improved; in the PPG process, the dry scheme enables more raw materials to be recovered and better economic benefits; In the field of environmental protection treatment, vacuum is combined with flash evaporation or multi-effect evaporator to recover the heat in wastewater and reduce wastewater discharge.
Energy efficiency and environmental protection benefits are improved; for flammable and explosive products, it is operated under a compliant and reliable vacuum pressure It can be appropriately reduced to ensure the quality and safety of the product
.

　　Zhang Shuo, Senior Manager of ThyssenKrupp Uhde Chlorine Engineering Technology (Shanghai) Co.
, Ltd.
: Enterprise C₃ and downstream integrated solutions

　Zhang Shuo, Senior Manager, ThyssenKrupp Uhde Chlorine Engineering Technology (Shanghai) Co.
, Ltd.
: Enterprise C₃ and downstream integrated solutions　ThyssenKrupp Uhde Chlorine Engineering Technology (Shanghai) Co.
, Ltd.
Senior Manager Zhang Shuo: Enterprise C₃ and downstream Integrated solution enterprise C₃ and downstream integrated solution

　　ThyssenKrupp, as a world-renowned patent firm and a Fortune 500 company, has a series of solutions in the chemical industry, including C₃ and downstream integrated solutions
.

In terms of PDH process, the company's proprietary technology can convert propane or butane into corresponding olefins (propylene or butene)
.
The main advantages of ThyssenKrupp Uhde’s PDH STAR technology: simple and reliable operation; simple industrial scale-up by increasing the number of reactors; catalyst life up to 6 years
.
In addition, ThyssenKrupp Wood and Evonik have joined forces to provide customers with one-stop integrated services for hydrogen peroxide and propylene oxide installations
.
Due to efficient raw material consumption, high-performance catalysts and low capital investment, the operation of the HPPO process is extremely cost-effective
.

　　Ni Ji, Chief Analyst of Orient Securities Chemical: PDH industry chain attracts attention under the background of carbon neutrality

Ni Ji, chief analyst at Orient Securities Chemical: PDH chain lower carbon neutral background and interest , principal analyst at Orient Securities Chemical Ni Kat: lower carbon neutral background PDH chain concern PDH lower carbon neutral background chain concern

　　Hydrogen is an indispensable raw material for petrochemical and coal chemical industries.
In the past, hydrogen production was mainly dependent on coal and natural gas.
However, under the goal of carbon neutrality, a new way of producing hydrogen without emissions is required
.
Among them, the light hydrocarbon chemical industry has relatively small carbon emissions, and is expected to become an important source of olefins in the future, and the cost of blue hydrogen is extremely low, which has great value in the context of carbon neutrality
.
The by-product hydrogen of light hydrocarbon chemical industry belongs to blue hydrogen and has no carbon emission
.
In the past, hydrogen was mainly burned in boilers.
Financially, it was calculated based on the deducted fuel gas price, which was generally around 5,000 yuan/ton
.

　　In the context of carbon neutrality, the price of carbon is included in the cost, which corresponds to a sharp increase in the cost of hydrogen, especially in coastal areas where the wind and solar resources are poor and the cost of green power is higher
.
If blue hydrogen can be used effectively, production costs can be greatly reduced
.

　　In the future, the profit center of light hydrocarbon chemical industry should shift from the olefin side to the hydrogen side
.
Long-term comprehensive sustainability requires the development of new raw materials and new technologies, and vigorous development of synthetic biology, plastic recycling technologies and recycling systems
.

　　Tong Kun, Director of Market Analysis, Shanghai Santao Business Consulting Co.
, Ltd.
: The domestic propylene oxide supply pattern has changed this year

Tao Business Consulting Co.
, Ltd.
and Shanghai market analysis director Tong Kun: this year, the domestic supply of propylene oxide structure has changed and Shanghai Tao Business Consulting Co.
, Ltd.
Market Intelligence Executive Tong Kun: this year, the domestic supply of propylene oxide structure has changed this year, the domestic supply of propylene oxide structure has changed

　　The price of propylene oxide fluctuated sharply this year, while the cost side was relatively stable.
The average domestic propylene oxide profit for the whole year was around 6,500 yuan/ton.
Although this year’s profit performance is eye-catching, with the change in supply and demand in the future, the chlorohydrin process propylene oxide profit There is a gradual narrowing of expectations
.

　　In 2021, the domestic propylene oxide supply pattern will change.
Both the chlorohydrin process plant in Tianjin Dagu will be permanently shut down, and the second phase of Shell, Jiangsu Fortune New Materials and Sinochem Quanzhou and other new facilities will be put into production
.
Polyether polyol is the largest downstream consumer of propylene oxide, accounting for about 75%; propylene glycol and its co-product dimethyl carbonate is the second largest consumer, accounting for about 9%; followed by propylene glycol ether and isopropyl Alcoholamine and TCPP flame retardants accounted for 8%, 3.
7% and 2.
9% respectively
.

　　East China University of Science and Technology Professor Fang Yunjin: PCC technology development has made outstanding progress

East China University Professor Fang into the cloud: PCC technology has made outstanding progress in the development of East China University Professor Fang into the cloud: PCC technology development has made outstanding progress PCC technology development has made outstanding progress

　　Polypropylene carbonate (PCC) is the only degradable plastic with the concept of "carbon neutrality".
It has good biocompatibility, high gas barrier performance and solvent resistance, etc.
It has high strength, elastic coefficient and non-toxicity.
Harmless and other characteristics
.
It is widely used in food packaging, medical materials, adhesives and engineering plastics
.

　　The internationally recognized PPC catalyst cost is less than 300 US dollars (2000 yuan).
The technology developed by East China University of Science and Technology will cost about 1200 yuan/ton PPC (up to the international standard 2000 yuan/ton PPC) when the catalyst is purchased out.
Self-produced catalyst raw materials, the catalyst cost is about 500 yuan/ton PPC
.
Moreover, the catalyst does not contain toxic elements such as chromium, cobalt, and nickel
.
After the catalyst is removed, the product is granulated by hot devolatilization extrusion.
The product is colorless and transparent particles, which are directly dried by the precipitation agent decantation method, and the product obtained is a white granular or powdery solid
.
In terms of product performance, ultra-high molecular weight PPC can be produced.
The catalyst activity can be adjusted during the production process, and the product indicators can be adjusted according to needs.
The weight average molecular weight is 500,000-1.
2 million, and the molecular weight distribution is 2.
5-5.
5
.

　　In the hot spot focus, technical experts, scientific research institutes, and representatives of related enterprises discussed topics such as the selection of propylene oxide process routes, the operation status of new projects, technical difficulties, safety control measures, downstream application directions and market patterns
.

　　Picture: Xue Qinghai/Photo