In June 2025, the Industrial Product Solutions Team of ACCESSEN (Shanghai Accessen Co., Ltd.) was invited to SINOPEC Nanjing Engineering & Construction Incorporation (SNEI) to conduct a specialized technical exchange. The discussion focused on the petrochemical industry's needs for energy saving, consumption reduction, and equipment reliability upgrades, providing next-generation heat exchange technology support for large-scale petrochemical projects.
SINOPEC Nanjing Engineering & Construction Incorporation (SNEI), a subsidiary of SINOPEC Group, is a comprehensive international engineering company. It prioritizes design, leverages proprietary technologies and process package development, and specializes in EPC contracting, project management, and professional construction to deliver integrated technical and management services globally.
As petrochemical facilities increasingly demand larger-scale and long-cycle operations, traditional shell-and-tube heat exchangers face challenges such as corrosion leaks, maintenance difficulties, and high energy consumption. Drawing on extensive experience in coal chemical, petrochemical, and new energy sectors, ACCESSEN highlighted how its fully welded product series can effectively replace traditional designs. Key solutions discussed included:
AWPS Fully Welded Plate-and-Shell Heat Exchanger:
- Utilizes integral welding sealing technology to eliminate leakage risks.
- Withstands high pressure and corrosion, ideal for harsh conditions such as sour oil and gas and acidic water.
- Lifespan increased by over 50% compared to traditional equipment.
(Application: Huayi Chemical Plant)
AWK Gas-Gas Air Preheater:
- Enables deep recovery of flue gas waste heat, preheating combustion air to 300°C+.
- Reduces comprehensive energy consumption by 15–25% in catalytic cracking and sulfur recovery units.
(Application: SINOPEC Yangzi Petrochemical)
A-BLOC Fully Welded Six-Sided Removable Heat Exchanger:
Beyond heat exchangers (including removable plate, air preheaters, and welded models), ACCESSEN offers skid-mounted industrial solutions for utilities, process condensate, evaporation crystallization, coal-to-chemicals conversion, oilfield waste heat recovery, and temperature control units (TCUs). Notable successful cases include:
- SINOPEC Yangzi Petrochemical CO Conversion Furnace Retrofit Project.
- Closed Cooling Water System for Yulin Chemical's 1.8 million tons ethylene glycol project.
- Waste heat recovery at SINOPEC Shengli Oilfield production wells.
These projects demonstrated significant efficiency improvements and left a strong impression on attending experts.
