Boosting Chemical Plant Efficiency with Heat Pumps and Chillers

Chemical production stands as a typical high-energy-consuming sector, where core processes like distillation, reactions, and separations heavily rely on substantial thermal energy supply and cooling support. Among these, distillation, requiring continuous heating and cooling, becomes the focal point of energy consumption. Traditionally, steam boilers or electric heating devices provide heat, while cooling towers or chiller units handle condensation and cooling. This process not only depends on significant primary energy but also generates substantial low-temperature waste heat. Direct discharge of this waste heat not only exacerbates energy waste but also increases the operational burden on cooling systems, leading to high comprehensive energy costs.

Amidst stringent environmental policies and fluctuating energy prices, efficiently recovering and utilizing waste heat has become a critical topic for chemical enterprises to reduce costs and enhance efficiency.

Application Principles

The collaborative waste heat recovery system of industrial heat pumps and chillers operates through thermodynamic cycles, achieving "waste heat upgrading" and "cold-hot joint supply."

• Industrial High-Temperature Heat Pump: Absorbs low-temperature waste heat from processes such as distillation and reactions, elevating it to 80°C-120°C for direct reuse in preheating raw materials, process water heating, or plant heating, thereby substituting a portion of the steam boiler load.

• Chiller: Converts low-grade energy from waste heat into chilled water at 7°C-15°C, providing cooling media for process cooling pools and other industrial processes.

Modular Design

The modular design allows seamless integration of waste heat recovery units with existing production lines without extensive modifications. Moreover, intelligent control systems dynamically match heat/cold demands, avoiding energy mismatch. From an economic perspective, companies can concurrently reduce steam consumption and refrigeration energy usage, while lowering carbon emission intensity. Equipment investment costs typically recover through energy savings within a short period.

Chemical-Specific Thermal Equipment

Tailored for harsh conditions in the chemical industry, including high temperature, corrosion, and continuous operation, Kaydeli's specialized thermal equipment product line focuses on the following technological adaptations:

• Chemical-Specific Industrial High-Temperature Heat Pump:

• Utilizes corrosion-resistant titanium alloy heat exchangers and high-temperature refrigerants to stably handle mediums like sulfur oil and acidic cooling water, with output temperatures up to 150°C.

• Multi-stage compression technology enhances energy efficiency, ensuring the economic feasibility of the waste heat upgrade process.

• Explosion-proof design meets safety standards for petrochemical and coal chemical explosion-proof areas.

• Chiller Unit for Chemical Applications:

• Features built-in corrosion-resistant coatings and filtering modules, adapting to abrasive particles and corrosive cooling mediums.

• Wide operational temperature range (-40°C to 45°C ambient temperature) ensures refrigeration stability under extreme conditions.

• Linked control with heat pump systems achieves dynamic balance of cold-hot loads.

Conclusion

Waste heat recovery serves not only as a tool for cost reduction and efficiency enhancement in chemical enterprises but also as a pivotal support point for restructuring energy networks. Kaydeli's collaborative innovation in industrial high-temperature heat pumps and chillers empowers chemical enterprises to transform waste thermal energy into manageable "energy assets," promoting the shift from linear consumption to circular regeneration in production processes. Against the backdrop of carbon neutrality, Kaydeli's industrial high-temperature heat pumps and chillers will continue to deliver dual dividends of environmental protection and economic benefits, laying a foundational support for the chemical industry's green transformation.