PetroChina Guangxi Petrochemical 1.2 million Tons Domestic Ethylene Plant Completed 72 Hours Full Load Calibration

at 9: 00 on July 24, PetroChina Guangxi Petrochemical Company 1.2 million tons/year ethylene plant for a period of 72 hours, 100% full load, the whole process of comprehensive calibration successfully completed. This calibration of all process operation parameters, energy consumption indexes and environmental protection emission indexes is better than the original design values. It is officially declared that this large-scale domestic ethylene plant has fully reached the design capacity and has long-term safe, efficient, stable and continuous operation capability, thus consolidating the core capacity base for the green, low-carbon and high-quality development of Guangxi petrochemical refining and chemical sector.

the ethylene plant adopts a complete set of large-scale ethylene complete process with independent intellectual property rights of PetroChina, and the key catalysts and moving equipment are replaced by domestic production. The core hardware configuration is as follows:

1. catalyst: supporting domestic PEC-21 palladium catalyst, providing core guarantee for efficient operation of cracking;
2. unit control system: equipped with double inverter without disturbance switching key equipment, improve the operation stability of large units;
3. major equipment breakthrough: the electric drive ethylene refrigeration compressor completed the first full-load actual operation, the operation state is stable and controllable, for the domestic same type of electric drive compressor unit operation optimization, parameter tuning precipitated first-hand measured data.

The whole device replaces the traditional steam drive with a motor drive scheme, and has its own significant low-carbon properties, which fully reflects the energy saving and consumption reduction advantages of the domestic process in the process of full load calibration.

3.1 technical level: verification of domestic million tons of ethylene complete technical maturity

the long-term full-load assessment was passed at one time, which substantially proved the reliability and stability of PetroChina's independent ethylene process, domestic core units and domestic catalysts in large industrial plants, broke the long-term monopoly of overseas complete ethylene processes, and provided a strong practical basis for the selection of domestic technology schemes for subsequent new million-ton ethylene projects in China.

3.2 production and operation level: deep excavation of cost reduction and low carbon potential

the calibration process retains a complete database of full-load operating conditions, and the subsequent fine tuning of operating parameters can be carried out based on the data to further reduce the comprehensive energy consumption and material consumption, and continuously tap the space for cost reduction and efficiency increase of the device. The normal and stable operation of the electric drive unit will also continue to reduce steam consumption and carbon emissions, which is in line with the general direction of "double carbon" carbon reduction transformation in the refining and chemical industry.

3.3 the regional supply chain level to stabilize the supply of olefins in South China.

After the plant fully meets the standard and stable production, it can steadily supply basic chemical raw materials such as ethylene and downstream polyethylene and ethylene glycol to the outside, strengthen the ethylene production capacity layout along the coast of South China, improve the independent and controllable level of the supply chain of polyolefin industry chain in Southwest and South China, and increase the stable supply channels in South China for chemical traders.