Chambroad — PP 600,000 T/Y (2020) — Brine Chiller Package

Chambroad Petrochemicals Co., Ltd. is a major privately-owned refinery and petrochemical complex in Shandong Province, China. The 600,000 T/Y polypropylene (PP) plant is a core downstream unit that converts propylene feedstock into homopolymer and copolymer PP resins for packaging, automotive, and textile applications.

Client	Chambroad — PP 600,000 T/Y (2020)
EPC / Design Institute	Huanqiu (Beijing)
Equipment	Brine Chiller Package × 2 sets
Design Code	GB
Cooling Capacity	1,600 kW + 800 kW
Motor Power	560 kW / 280 kW
Refrigerant	R1270 (propylene)
Coolant	Ethylene glycol

Customer Background

Chambroad Petrochemicals Co., Ltd. is a major privately-owned refinery and petrochemical complex in Shandong Province, China. The 600,000 T/Y polypropylene (PP) plant is a core downstream unit that converts propylene feedstock into homopolymer and copolymer PP resins for packaging, automotive, and textile applications.

Challenges and Engineering Requirements

Process Temperature Control in petrochemical processing

Chambroad required precise low-temperature cooling for Brine Chiller Package × 2 sets service in the petrochemical processing sector. The brine chiller system must maintain stable outlet temperatures within narrow tolerances despite variable process heat loads. Fluctuations in feed composition, ambient temperature swings, and seasonal load variations all affect the refrigeration duty — the system must respond to these changes while protecting compressor operation from surge and liquid carryover.

Refrigerant Selection and Safety

The choice of R1270 (propylene) reflects the balance between thermodynamic efficiency at the target evaporating temperature, compatibility with the plant’s existing refrigerant infrastructure, and safety classification under the applicable code. Each refrigerant brings specific considerations: flammability limits for hydrocarbon refrigerants, operating pressure ranges that affect component sizing, and oil miscibility that influences compressor lubrication system design.

Integration with EPC Engineering

The chiller packages were specified and documented by Huanqiu (Beijing) as part of a larger process unit. This means every interface — brine supply/return connections, electrical load requirements, control signal protocols, and physical footprint — must match the EPC’s plot plan and P&ID exactly. Any deviation requires formal design change management, adding time and cost to the project.

Why Chambroad Selected Lmart

Integrated refrigeration package capability. Lmart designs and manufactures complete refrigeration systems — compressor selection, heat exchanger sizing, piping layout, control logic, and skid-frame engineering — as a single-source supplier. This eliminates the interface risks that arise when the chiller vendor, vessel fabricator, and system integrator are separate companies.

Process refrigerant experience. Lmart has delivered refrigeration packages using propylene, propane, ammonia, R134a, and other process refrigerants across petrochemical, chemical, and marine applications. This experience base means the engineering team understands the specific requirements of each refrigerant — safety classifications, oil management, capacity control methods — without a learning curve.

Repeat performance. Lmart has delivered equipment to Chambroad and similar clients in the petrochemical processing sector, demonstrating consistent quality and on-time delivery performance across multiple projects.

Equipment & Scope of Supply

Lmart supplied two (2) brine chiller packages for the PP facility — one rated at 1,600 kW and the other at 800 kW. Both units use R1270 (propylene) as refrigerant and circulate ethylene glycol as the secondary coolant serving reactor and downstream process cooling. Compressor motor ratings are 560 kW and 280 kW respectively, and the equipment was designed to GB standards.

The project was engineered by Huanqiu Engineering (Beijing), one of China’s top-tier EPC contractors for refinery and petrochemical complexes.

Quality Control and Project Execution

All equipment was manufactured under Lmart’s ISO 9001-certified quality management system with the following key inspection milestones:

• Material verification: Incoming inspection of all plates, forgings, and fittings against mill certificates; PMI spot checks on alloy materials
• Welding quality: All welding performed by qualified welders using approved WPS/PQR; NDE per GB requirements including RT/UT on pressure-retaining welds
• Dimensional inspection: In-process dimensional checks at shell rolling, head forming, and final assembly stages
• Pressure testing: Hydrostatic test to GB requirements, witnessed by the authorized inspector and/or client representative
• Documentation package: Complete data book including material certificates, weld maps, NDE reports, dimensional records, and test certificates

Equipment was delivered to Chambroad’s project site in China, meeting the project schedule requirements.

Results and Business Impact

Lmart successfully delivered 2 units of Brine Chiller Package × 2 sets to Chambroad, meeting the project’s quality, schedule, and documentation requirements. The equipment was manufactured to GB standards, with full documentation packages accepted by the client and applicable inspection authorities.

This project reinforces Lmart’s position as a qualified manufacturer for petrochemical processing applications, demonstrating the company’s ability to deliver equipment that meets international quality and certification standards.

Customer Voice

“The equipment was delivered on schedule and the documentation package was complete. The quality of fabrication met our inspection requirements.”

— Chambroad project team (paraphrased from project review)

Note: Lmart respects client confidentiality. Specific contact references are available upon request during the qualification process.