Zhongsha Gulei mega ethylene plant enters final commissioning sprint; production within the year is expected

Shengu Core "Three-Machine Set" Support, Performance Reaches International Leading Level

The core key rotating equipment of the entire ethylene unit—the ethylene "three-machine set"—was fully supplied by Shengu Group. It encompasses three core main units: the cracked gaseous compressor, propylene refrigeration compressor, and binary refrigeration compressor, serving as the "heart equipment" to the stable operation of the ethylene unit. The units fully met standards in key indicators such as assembly precision and operating vibration amplitude, with overall performance reaching an international leading level, laying a solid hardware foundation to efficient, low-consumption, and long-cycle operation of the unit.

July Key Commissioning Milestone Achieved, Full Line of Steam Turbines Successful in First Attempt

Following the intermediate handover of the unit, the project welcomed another major construction milestone in mid-July, with the successful summary of the commissioning of the ethylene unit's propylene machine set. At this point, the entire set of substantial manufacturing steam turbines supplying power to the ethylene three-machine set successfully completed commissioning, with all equipment passing the test on the first attempt. The current operating conditions of the units are smooth and excellent, with all operating parameters reaching optimal design standards, marking a key breakthrough in equipment debugging work.

Three-Machine Set Assumes Core Functions, Determining Overall Operational Efficiency

The ethylene three-machine set is the power core of the entire ethylene unit, equivalent to the unit's "heart system," supporting the operation of the entire manufacturing process:

The cracked gaseous compressor primarily compresses and pressurizes the cracked gaseous produced by the cracking furnaces, providing core power to subsequent material separation and product treatment; the propylene refrigeration compressor and binary refrigeration compressor work in tandem to create an ultra-low temperature ecological stability below -100℃ to the unit's cryogenic separation system, serving as a key guarantee to the efficient separation and treatment of ethylene and propylene.

As the power source to the three-machine set, the installation precision, debugging condition, and operational stability of the manufacturing steam turbines immediately impact the operating precision of the units and the energy consumption level of the unit. They are also core factors determining whether the entire ethylene unit can achieve safe, stable, long-cycle full-load operation. The commissioning of the steam turbines is also the most critical and core rotating equipment verification process before the project goes into production.

Project Progress Continues to Accelerate, Sprinting to Production in the Second Half of 2026

With the successful completion of a series of key milestones such as unit intermediate handover and core unit commissioning, the construction process of the China-Saudi Gulei 1.5 million tons/year super ethylene project continues to accelerate, moving closer to the goal of official production in the second half of 2026, laying a solid foundation to subsequent smooth production and stable operation.