Why Are Flare Gas Recovery Systems Useful?

By Author: Crystal TCS
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Flare Gas Recovery is done with re-compression, for example, either for enhanced oil recovery or by re-injecting into the main process. This adds cost but does not add income directly. We believe that it is possible to use a lean and mean process train to turn flare gas into profitable products rather than waste. Depending on the location and available infrastructure, the valuable product can be electricity, LPG, or pipeline-quality natural gas (in order of increasing profitability). In the absence of a nearby gas grid pipeline, production of CNG, LNG, or synthetic crude oil, methanol or dimethyl ether (via a GTL process) may be more suitable.

Flare Gas Recovery Systems are specialised compression bundles, which mean to recover and repurpose gasses and emissions, like methane/LPGs and sulphur dioxide that will usually be burned throughout the flaring method. Key to the protected operation of refineries and petrochemical facilities, the method involves capturing the gas from the flare knock-out vessel and pressures it using liquid ring compressors. The so-recovered gases may be reused inside the facility’s fuel facility, ...
... as a refinery feedstock or for re- infusion.
What is Gas Flaring and Why Flare Gas Recovery Systems are Useful?
Gas flaring is generated by the combustion of associated gas coming from industrial processes including oil and gas recovery and petrochemical production. It is one of the most significant contributors to the increase in greenhouse emissions. Flare Gas Recovery Systems are one of the cleanest solutions to minimize or eliminate gas flaring.
How a Flare Gas Recovery Unit Works?
The gas coming from the flare Process Unit enters the Liquid Ring Compressor along with the process water. After the compression phase, the gas, water and hydrocarbon mixture enters the separator where the three elements are parted: the gas passes through a demister to have minimum water and leaves the vessel from the top, while condensed hydrocarbons and water are separated by gravity due to lower gas speed. The water is pushed back to the compressor, after being cooled again by a cooler. Moreover, a continuous process water make up line in the compressor suction line is provided to ensure a continuous water ring in the compressor. The condensed hydrocarbons are discarded.

The gas exiting the separator finally heads to the Flare gas Amine Washing Unit where it is amine treated to remove H2S. The treated gas is then pushed to the Fuel Gas header to be used as fuel.
Key Features
Rugged Design Construction - tolerant to carryover from process upsets
Low Maintenance Requirements
Cool Running Liquid Ring Technology - ideal for handling caustic gases
Simplified Process - Patented System uses Amine to clean gas as it condenses
Global Technical Support & Service

We at Crystal TCS have taken a theory based approach towards establishing the performance estimation of Ejector in Flare Gas Recovery Systems and have developed design from the basic principles of Thermodynamics and Fluid flow dynamics. We manufacture Flare gas recovery systems in a wide range of materials ranging from Carbon Steel, Stainless Steels and Hastelloys depending upon the application.
Crystal TCS Pvt. Ltd. has committed itself to strive continuously for technological excellence and puts a great emphasis on delivering quality products and services.

Crystal TCS Pvt. Ltd.
For more information Give us call at: 02532501600
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