Advancing Low-Carbon LNG within Qatar: Integrating CCUS and Carbon Tax Strategies

As global efforts intensify to reduce CO₂ emissions and combat climate change, this study explores the integration of Carbon Capture, Utilisation, and Storage (CCUS) and Carbon Tax (CT) for producing low-carbon Liquefied Natural Gas (LNG) in Qatar. The research develops a model employing Post Combustion Capture (PCC) to capture and strategically allocate CO₂ from a single major source to various sinks. Utilising a Linear Programming (LP) approach, the model aims to balance profitability with emission reduction, considering factors such as operational costs, carbon tax implications, and the market price of CO₂. The study examines three scenarios: maximising profit, minimising emissions, and a hybrid of both, to assess the impact of different CO₂ allocation strategies on economic and environmental outcomes of the source. Results indicate that while specific CO₂ allocation decisions subtly affect profitability and emissions, the overall economic and environmental performance remains consistent across scenarios. This research highlights the potential of CCUS and CT in enhancing sustainable energy production and advancing a circular economy in carbon management.