GAS HEATER (FUEL GAS HEATER)

Process and Fuel Gas Preheating Systems

ERGIL manufactures gas heaters that preheat natural gas for turbines, process applications, and pressure regulation stations. These heat exchangers prevent hydrate formation, optimize combustion efficiency, and protect equipment from thermal shock in gas-fired power generation, industrial heating, and pipeline operations.

Heating Applications

Gas turbines require fuel gas at 15-40°C minimum to prevent combustion instability and ensure proper atomization. Pressure reduction stations need gas preheating to prevent hydrate formation and freezing during Joule-Thomson expansion. Process applications require controlled gas temperatures for optimal reaction conditions or equipment protection. ERGIL engineers heaters for each specific thermal duty and temperature requirement.

Heater Types

Shell-and-tube heat exchangers use hot water, steam, or thermal fluid as heating medium. Process gas flows through tubes while heating fluid circulates on shell side. Direct-fired heaters employ burners heating gas passing through coil tubes, offering independence from utility systems. Electric immersion or circulation heaters provide precise temperature control for smaller flows. Indirect bath heaters submerge gas coils in heated glycol or oil bath preventing localized overheating.

Design Configuration

ERGIL sizes heaters based on gas flow rate, inlet temperature, required outlet temperature, operating pressure, and available heating medium. Heat transfer calculations determine surface area requirements. Multiple tube passes optimize thermal efficiency. Materials selected for temperature and pressure ratings including carbon steel, stainless steel, or special alloys for corrosive gas streams.

Temperature Control

Automated control systems modulate heating medium flow or burner firing rate maintaining precise outlet gas temperature. Temperature transmitters provide continuous monitoring with high-temperature alarms protecting against overheating. Bypass valves enable temperature regulation by blending heated and unheated gas streams. Fail-safe designs prevent excessive temperatures during control failures.

Applications

Gas turbine fuel gas conditioning for power generation and mechanical drive applications, pressure regulating station preheating preventing hydrate formation, industrial burner fuel gas heating optimizing combustion, process gas temperature control for chemical reactions, and custody transfer metering gas conditioning. Serves capacities from 0.5 to 200 MMSCFD across diverse industries.

Construction Standards

Heat exchangers designed per ASME Section VIII or TEMA standards. Fired heaters comply with API 560 specifications. Pressure relief protection against overpressure scenarios. Insulation minimizes heat losses and personnel protection. Seismic and wind load calculations per site requirements. Materials rated for gas composition including sour service when required.

Performance Features

Efficient heat transfer minimizes energy consumption. Compact designs suit space-constrained installations. Low pressure drop preserves gas pressure. Reliable operation with minimal maintenance. Proven technology with extensive field application across gas processing, power generation, and industrial facilities.

ERGIL gas heaters deliver dependable preheating performance ensuring safe, efficient gas utilization across demanding industrial applications.

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