Pressurized reboiler reduces VOC emissions in glycol dehy systems

A pressurized glycol reboiler, first used at a Shell Oil Co. South Louisiana plant, is effective in controlling volatile organic compound (VOC) emissions from glycol gas-dehydration systems.The reboiler operates at pressures that allow the overhead vapors that contain VOCs and stripping gas to flow directly to compressor suction, a fuel system, or to a flare. These reboilers effectively control benzene, toluene, ethylbenzene, and xylene (BTEX) emissions and economically recover all the hydrocarbon vapors with minimal incremental capital cost and no required emissions monitoring.BTEX and other VOC emissions are an environmental challenge for the natural gas industry. VOCs are considered ca...

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