Carbon Capture, Utilization and Storage (CCUS) in Vietnam

Title : Carbon Capture, Utilization and Storage (CCUS) in Vietnam

Abstract:

Vietnam's total CO2 emissions in 2021 were 337.7 million tons. In 2022, they reached approximately 327.9 million tons. The energy sector was the main source of emissions, accounting for 63.3% of total CO2 emissions. From the figures presented Estimated CO2 Storage Capacity in Vietnam, Estimated CO2 Storage Capacity in Oil and Gas Fields in Vietnam, CO2 Abatement Costs from Natural Gas Processing (with the current practice of venting pure CO2 streams to the atmosphere), Annual Costs, Enhanced Oil Recovery Revenues, and Subsidy Impact of a 1 Mt/yr CO2 Capture and Storage System in Viet Nam ($ million), Sedimentary Basins of Viet Nam, Distribution of Oil Fields by CO2 Storage Volume,  Distribution of Gas Fields by CO₂ Storage Volume, Oil and Gas Fields Ranked by Suitability for Storage, CO2 Content in Natural Gas Fields in the Offshore Sedimentary Basins of Viet Nam, 150 and 300 km Circles Around Short-Listed CO2 Sources in Viet Nam, Ranking oil and gas fields according to their CO2 storage capacity and suitability.

A study in Vietnam showed that each cubic meter of concrete using fly ash has the natural ability to absorb approximately 15-20 kg of CO2 emissions. The two of authors visited and selected fly ashes and bottom ashes of some thermal power plants and Thai Nguyen metallurgical factory.

The analyzed results are

• Content of the fly ash in Na Duong thermal power plant are Anhydrite, Hematite, Portlandite, Quartz low, Calcite, Gypsum, Ettringite, Fluorapatite, Dolomite, Illite, Blodite.
• Content of the fly ash in Cao Ngan thermal power plant are Ettringite, Anhydrite, Quartz, Hematite, Gypsum, Calcite, Blodite.
• Content of the fly ash in An Khanh thermal power plant are Quartz, Hematite, Muscovite, Mullite, Rhombodance, Omphacite, Talc.
• Contents of the fly ash in Cam Pha thermal power plant are Quartz, Hematite, Calcite, Muscovite, Gypsum and Albite.
• Contents of the fly ash in Uong Bi thermal power plant are Mullite, Quartz, Hematite and Magnesioferrite.
• Contents of the fly ash in Pha Lai thermal power plant are Quartz, Hematite, Mullite,  Calcite, Stishovite.
• Contents of the fly ash in Thai Nguyen metallurgical factory are Hematite, Magnetite,  Calcite, Quartz, Ilmenite, Iron Oxide, Jervisite, Kesterite, Kornelite.
• Contents of the cotton slag in Thai Nguyen thermal power plant are Quartz, Fukuchilite, Chalcopyrite, Pyrrhotite, Cobalt Iron Nickel Sulfide, Spinel, Chalcocite, Manganese Sulfide.

The authors proposed research directions using fly ash from thermal power plants in Vietnam to absorb CO2. This paper presented the current status of CO2 emissions in Vietnam, geological storage potential, opportunities for CCUS implementation, technical, economic, and legal challenges, and proposed a roadmap for developing CCUS according to international standards by 2050.

Biography:

Nguyen obtained bachelor's degree of Chemistry at Hanoi University of Science, Vietnam in 1995. He worked in Institute of Materials Science - Vietnamese Academy of Science and Technology (VAST) from 1995. He obtained Master 's degree of Hanoi University of Science, Vietnam in 1998. He was the only VIP of Petro Vietnam Conference in 2000. From March 2006 he worked in Centre of Severe Materials and Environment (CSME) – IFTECH – Institute of Mechanics (VAST). From April 2019 he became Director of CSME. He obtained Dr's degree of Mie University, Japan in 2023. He has published more than 37 research articles.