A recent study published in “Engineering Proceedings” has shed light on the pressing need for decarbonization in Uzbekistan’s energy sector, particularly focusing on the Turakurgan natural gas-fired combined cycle power plant (NGCCPP). With over 85% of the country’s electricity generated from natural gas, the power sector is a significant contributor to greenhouse gas emissions. The research, led by Azizbek Kamolov from the Department of IT, Automation, and Control at the Tashkent Chemical-Technological Institute, emphasizes the potential of carbon capture, storage, and utilization (CCSU) technologies to help Uzbekistan meet its climate goals.
The study utilized advanced simulation software, Aspen Plus®, to model one of the two identical blocks of the 900 MW Turakurgan plant. The findings indicate that by integrating an optimal exhaust gas recirculation (EGR) system, the plant can significantly enhance its efficiency in capturing carbon dioxide (CO2). Specifically, the research identified an EGR ratio of 0.45 as optimal, which could increase the CO2 concentration in the flue gas while simultaneously reducing the flue gas flow rate.
This integration of CCSU technology could result in avoiding more than 2.16 million tons of CO2 emissions annually if the capture rate is set at 90%. Kamolov stated, “The implementation of CCSU technologies is essential for Uzbekistan to achieve its greenhouse gas reduction targets and transition to a more sustainable energy system.”
The implications of this research extend beyond environmental benefits. For the energy sector in Uzbekistan, embracing CCSU technologies represents a commercial opportunity to align with global decarbonization trends while enhancing energy security. The study discusses various CCSU methods, including absorption, adsorption, and membrane separation, tailored to the specific conditions of the Turakurgan plant. This flexibility in approach opens pathways for local industries to innovate and invest in cleaner technologies.
As Uzbekistan aims for a minimum of 25% renewable energy share by 2025, integrating CCSU with existing natural gas infrastructure could serve as a bridge in the transition to a greener energy landscape. This strategic move not only supports national climate commitments but also positions Uzbekistan as a potential leader in clean energy technologies in the region.
The research underscores a critical juncture for Uzbekistan’s energy policy, highlighting that while the shift to renewables is essential, optimizing existing natural gas resources with CCSU can provide immediate benefits in reducing emissions. The findings from Kamolov and his team present a roadmap for the future of the energy sector in Uzbekistan, aligning economic growth with environmental stewardship.
