NATCO SHV Flare Emission Control System | Schlumberger

NATCO SHV Flare

Emission control system

Enabling gas producers to comply with emission regulations

The NATCO SHV Flare emission control system can be installed downstream of glycol reboiler still columns to burn unwanted emissions and help gas producers comply with environmental regulations governing benzene, toluene, ethylbenzene, and xylene (BTEX) and volatile organic compound (VOC) emissions.

The proprietary system delivers BTEX and VOC destruction efficiency of 95%–98%. Reboiler emission vapors are superheated before being burned to eliminate costly liquid disposal.

The system and piping are designed to reduce backpressure on the atmospheric glycol reconcentration system. This design feature prevents glycol contamination in the reboiler surge tank. The vapor superheater uses waste heat from the reboiler flue gas to superheat the emissions, so no other heat source is required. The system also provides emission control for new or existing glycol dehydration systems, with easy retrofitting of existing units.

Lowers capex and opex

  • Proprietary internal-burner venturi design uses less fuel gas, generates greater VOC combustion (destruction) efficiency, and provides reduced glycol reflux column backpressure.
  • External superheater (stack heat exchanger) reduces liquid accumulation and disposal, enhances clean burn and water vaporization, and operates in cold weather without freezing.
  • Natural draft design has no blowers and reduces utilities.
NATCO SHV flare

NATCO SHV Flare System Specifications

ModelWaste Gas, lbm/hb Min. Waste Gas, lbm/hb Max. Assist Gas, lbm/h 5 psi Assist Gas, lbm/h  20 psi Mix EductorStandpipe, ft
Model 2S Waste Gas, lbm/hb Min. 0 Waste Gas, lbm/hb Max. 25 Assist Gas, lbm/h 5 psi 1.9 Assist Gas, lbm/h  20 psi 3.4 Mix Eductor 2 Standpipe, ft 8
Model 2l Waste Gas, lbm/hb Min. 25 Waste Gas, lbm/hb Max. 60 Assist Gas, lbm/h 5 psi 7.8 Assist Gas, lbm/h  20 psi 13.7 Mix Eductor 2 Standpipe, ft 8
Model 2.5S Waste Gas, lbm/hb Min. 60 Waste Gas, lbm/hb Max. 100 Assist Gas, lbm/h 5 psi 9.16 Assist Gas, lbm/h  20 psi 16.1 Mix Eductor 2.5 Standpipe, ft 8
Model 2.5L Waste Gas, lbm/hb Min. 100 Waste Gas, lbm/hb Max. 175 Assist Gas, lbm/h 5 psi 21.7 Assist Gas, lbm/h  20 psi 38.2 Mix Eductor 2.5 Standpipe, ft 8
Model 3 Waste Gas, lbm/hb Min. 175 Waste Gas, lbm/hb Max. 300 Assist Gas, lbm/h 5 psi 30.4 Assist Gas, lbm/h  20 psi 53.6 Mix Eductor 3 Standpipe, ft 12
Model 4 Waste Gas, lbm/hb Min. 300 Waste Gas, lbm/hb Max. 450 Assist Gas, lbm/h 5 psi 52.0 Assist Gas, lbm/h  20 psi 91.7 Mix Eductor 4 Standpipe, ft 12
Model 5 Waste Gas, lbm/hb Min. 450 Waste Gas, lbm/hb Max. 650 Assist Gas, lbm/h 5 psi 74.6 Assist Gas, lbm/h  20 psi 132 Mix Eductor 5 Standpipe, ft 16
Model 6 Waste Gas, lbm/hb Min. 650 Waste Gas, lbm/hb Max. 950 Assist Gas, lbm/h 5 psi 132 Assist Gas, lbm/h  20 psi 233 Mix Eductor 6 Standpipe, ft 18

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