Mission to End Emission: Flare Minimisation and Energy Conservation by Process Optimisation in NGL Fractionation Facility
- Sevideen Abdul Shathar (ADNOC Gas Processing) | Venugopal Bakthavachsalam (ADNOC Gas Processing) | Bala Murugan Ramakrishnan (ADNOC Gas Processing) | Anand Singh (ADNOC Gas Processing)
- Document ID
- Society of Petroleum Engineers
- SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility, 16-18 April, Abu Dhabi, UAE
- Publication Date
- Document Type
- Conference Paper
- 2018. Society of Petroleum Engineers
- 4.1.4 Gas Processing, 4 Facilities Design, Construction and Operation, 6 Health, Safety, Security, Environment and Social Responsibility, 6.1.5 Human Resources, Competence and Training, 4.1.5 Processing Equipment, 7.5 Professionalism, Training, and Education, 2.6 Acidizing, 7.5.1 Ethics, 6.1 HSSE & Social Responsibility Management, 4.1.6 Compressors, Engines and Turbines, 2 Well completion, 4.1 Processing Systems and Design, 7 Management and Information
- Emission reduction, NGL fractionation, Energy Conservation, Flare minimisation, Process Optimisation
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This paper highlights the various process optimisation initiatives carried out in ADNOC Gas Processing Natural Gas Liquids fractionation facility to minimise Flaring and conserve Energy thereby reducing the emissions to the Environment. Capabilities of existing assets were exploited or optimally utilized to achieve superior Energy and flaring performance with significant reduction in Greenhouse gas emissions.
Below are the list of various optimization initiatives that were completed.
Flare Minimization Initiatives
Optimization of Molecular sieve units.
Optimization of cover gas in Acid Gas Flare.
Optimization of purge gas in High Pressure Flare.
Swapping of purge media from fuel gas to Nitrogen in Low Pressure Flare.
Energy optimization initiatives
Maximization of Train throughput with Single refrigeration compressor.
Optimization of power in Boil off Gas recovery systems.
Optimization of steam in ADIP solvent Regeneration systems.
Optimization of power in LPG Feed Systems.
Post implementation of these initiatives, flaring was reduced by 28% and Energy savings realised was upto 6%. These initiatives were pursued and accomplished by in-house team with zero capital reducing CO2 emissions by 131,000 tons/annum with an impressive cost savings of $8.3 million per annum. The benefits are sustainable throughout the life cycle of the project.
This paper presents the best practices adopted for maximum or optimum utilization of the capabilities of existing assets considering the current and design scenarios to achieve superior flaring and Energy performance with outstanding emission reductions. All these were achieved totally by the efforts of inhouse team boosting the morale and enhancing the mindset of staff to look beyond good practices. These initiatives have high potential for transferability across oil and gas industry.
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