On the coast of the South China Sea and Bohe Bay, the construction of a world-class green chemical and hydrogen energy industrial park is facing a major breakthrough. On December 26, the first phase (1) of the Donghua Energy (Maoming) Alkane Resource Utilization Project (hereinaf

"The purpose of commissioning is to solve problems and gradually adapt the equipment and instruments to real production conditions." Sun Canqian, general manager of Donghua Energy (Maoming) Co., Ltd., said that commissioning marks the project's transition from equipment installation to commissioning, and then a solid step towards completion and production.

This is a major event that requires the whole city to do its job. The Donghua Energy project only took 19 months from the start of construction to completion and commissioning, which is far shorter than the average 24-month construction period of similar devices, creating the " Maoming speed" of manufacturing transformation. The

project has fully entered the commissioning stage.

The Donghua Energy project is built in the Jeddah Port Area of ​​Maoming Binhai New Area. The main product processing route is to use the propane resources imported by Donghua Energy, using the propane dehydrogenation (PDH) technical route to obtain propylene and hydrogen , and then further process it to obtain polypropylene (PP).

At the Donghua Energy Project construction site, the tower crane of the propane dehydrogenation (PDH) unit is towering, the pipe gallery is winding, and the roar of various machines is endless. Test runs are being carried out simultaneously in multiple areas.

In the 220kV main substation , which is responsible for ensuring the power supply for the entire trial run, three workers were waiting in front of the screen in the monitoring room, but the most tense moment has passed. Previously, on December 15, the substation successfully delivered power at one time, causing all the project equipment to be "electrically shocked".

"Full-line electric communication is the key and prerequisite for commissioning, effectively ensuring that the project is completed and put into production as scheduled." Li Xiuwen, electrical manager of the Equipment Department of Donghua Energy (Maoming) Co., Ltd., said that according to the progress of the front-line commissioning, the control room can power on and off according to instructions to complete debugging.

According to reports, the cryogenic tank area has started nitrogen replacement, oxygenation and water removal, and preparations for feeding materials. There are 3 nitrogen replacement units, 1 of which has been completed. The installation of the pipe gallery steel structure is 99% complete, the pipeline pressure test is 100% complete, and the equipment installation is 100% complete. We strive to complete the acceptance on January 10, 2023. In addition, it is planned to start up the polypropylene unit after introducing propylene on February 15, 2023.

The new track ran at full speed and set a new record

Maoming started and prospered through petrochemical manufacturing, and it must also rely on manufacturing to lead and prosper.

Building a world-class green chemical and hydrogen energy industrial park is a key move for Maoming to accelerate the fourth transformation and upgrading of the petrochemical industry. To become a "parallel runner" and "leader" on the new track of green chemicals, new materials, and new energy, it is obviously urgent to plan and build early.

On September 16, 2019, the Maoming Municipal Government and Donghua Energy Co., Ltd. signed the "Alkane Resources Comprehensive Utilization Project Investment Agreement." Seven months later, the Donghua Energy Project officially started construction, setting a record for the shortest time for the first major project worth hundreds of billions in Maoming City in recent years.

There is no turning back when the bow is drawn. In the past three years, Donghua Energy's project has overcome the influence of 9 rounds of local epidemics, 13 typhoons, severe sea conditions and other persistent objective factors, creating the fastest completion and commissioning miracle of similar projects in China. Among them, the construction of a 600,000 tons/year propane dehydrogenation (PDH) unit under the project lasted 19 months, which was the fastest construction in the entire propane dehydrogenation (PDH) industry. The 7-layer reaction frame, which was the most difficult to construct, was capped in only 81 days, breaking the industry's highest historical record.

Donghua Energy Project has self-built two 50,000-ton (GT) liquid bulk terminals in the Jeddah Port area of ​​Maoming Port. The whole process is operated offshore without any cover, creating a miracle of offshore construction of the same scale in China without cover conditions. The project has started in May 2021 and is expected to be completed on January 25, 2023, taking less than 21 months.

As a material channel from the dock to the rear industrial area, the Donghua Energy Project also built an offshore public pipe corridor with a total length of approximately 4.3 kilometers and a width of 16 meters. During the period, in order to ensure the safety, quality and progress of the project construction, a 3.3-kilometer-long temporary steel trestle was built. The large amount of the project is rare in the industry, and the construction quality and speed are also among the forefront in the industry.

At present, the Donghua Energy Phase I (I) project, supporting storage areas, docks and pipe corridors have been basically completed, and joint debugging and simultaneous acceptance are in progress.

A world-class chemical park from scratch

Since the Donghua Energy project landed in Maoming in 2019, after thousands of people have worked hard day and night, a world-class green chemical and hydrogen energy industrial park is emerging from the once barren wasteland: acrylonitrile and sustainable aviation fuel industry base projects have been launched one after another; in less than half a year, the 7.8-kilometer main road of the park, Jeddah Avenue, has been fully connected; Jeddah Port water supply has a daily water supply capacity of 80,000 cubic meters The project has solved the problem of industrial water ; a sewage treatment plant and a fire station with a daily processing capacity of 12,500 cubic meters have been completed and put into operation...

From a project to a chain extension, from a barren beach to roads, water, electricity and other supporting infrastructure, Maoming has mobilized the city to build a world-class green chemical and hydrogen energy industrial park, striving to build a green chemical industry cluster with a scale of 100 billion within two or three years, and promote Maoming's transformation and upgrading from petrochemicals to green chemicals.

insists on focusing on big industries, big platforms, big projects, big enterprises and big environments. The world-class green chemical and hydrogen energy industrial park focuses on the development of the "propane-propylene-polypropylene" industrial chain, and creates a new material industry with polypropylene, carbon fiber, and composite materials as the core; using propylene, liquid ammonia and other raw materials, the industrial chain of "acrylonitrile-polyacrylonitrile-carbon fiber-new automotive lightweight materials" is laid out to promote the new material industry to extend and strengthen the chain.

It is understood that relying on the transportation advantages of Jeddah Port Area and the Port-Drudging Railway, as well as the chemical industry advantages of " Southern Oil City ", the output value of the green chemical and hydrogen energy industrial park strives to reach 25 billion yuan in 2025.

[Reporter from Nanfang Daily, Nanfang ⁺] Zou Xiangliang

[Correspondent] Zhuo Jiansi Cui Huo

[Picture] Zhang Pengfei

[Author] Zou Xiangliang

[Source] Southern Newspaper Media Group Nanfang + Client