What are the difficulties to be overcome in the application of CCUS technology in cement industry?

2023-08-24 09:08:40

Under the background of "double carbon" strategy, the cement industry will probably be included in the national carbon trading market, and CCUS will be the technology that can not be ignored for cement enterprises to win the "double carbon" track in the future.

Greenhouse gas emissions from the cement industry are equivalent to 7% of global emissions, according to

the International Energy Agency. Cement production is under increasing environmental pressure as more carbon reduction schemes and net zero commitments are announced globally. Now that global carbon dioxide emissions have climbed to a record high, the pace of decarbonization in the cement industry needs to be accelerated.

The cement industry process is relatively simple, the flue is single, and the proportion of CO2 captured is very high. The application prospect of CCUS in the cement industry is very broad, and the developing CCUS technology may become the best choice for carbon reduction in China's cement enterprises.

CCUS refers to a technology that captures and separates carbon dioxide from industrial, energy production and other emission sources or air, and uses it or transports it to a suitable site for storage, so as to avoid its direct emission into the atmosphere and ultimately achieve carbon dioxide emission reduction.

According to incomplete statistics, there are 29 CCUS projects applied in the cement industry in the world, mainly in Europe; In China, in 2018, Baimashan Cement Plant, a subsidiary of Conch Group, completed the first demonstration project of carbon capture and purification in cement kilns in the global cement industry, which undoubtedly filled a gap in low-carbon technology in the world cement industry, and China has also taken a key step in CCUS technology.

It is undeniable that the current CCUS technology is still in the demonstration stage. Although the application of CCUS technology in cement industry has great potential, there are still some difficulties to be overcome.

The first is cost. It is understood that the total investment of Conch Cement 's first cement kiln carbon capture and purification project is more than 50 million yuan. The total investment of a demonstration project of CO2 carbon capture and purification using patented external combustion kiln technology in a cement enterprise in Fujian is as high as 640 million yuan, which is obviously unacceptable to ordinary enterprises.

Secondly, CCUS technology started late, and the related technology is not mature enough, so more research and development are needed. CCUS technology includes four links of capture, transportation, utilization and storage, and there is utility consumption in each process link. At present, it is urgent to reduce costs and expand examples through technological progress to improve the feasibility and stability of the technology.

Finally, the support of policies and regulations is also an important factor to promote the application of CCUS technology in the cement industry. Only by formulating clear and perfect CCUS laws and regulations, reducing various concerns of stakeholders, ensuring the stable development of CCUS projects, and providing necessary support and incentives to encourage cement enterprises to adopt CCUS technology, can CCUS technology play a greater role in decarbonization in the cement industry.

Under the background of "double carbon" strategy, the cement industry will probably be included in the national carbon trading market, and CCUS will be the technology that can not be ignored for cement enterprises to win the "double carbon" track in the future. On September 12-13,

2023, China Cement Network will hold the "2023 Cement'Double Carbon 'Conference and the 10th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference" in Zhengzhou, Henan Province. Participants and experts and scholars will share the application of CCUS in cement industry and other topics!

At the same time, the medal ceremony of "2023 Advanced Enterprises of Double Carbon in Cement Industry" and the "Double Carbon" Equipment Exhibition will be held . After the meeting, we will also organize a visit to the UNK3 of Jiyuan Zhonglian Cement Co., Ltd. "The world's first production line of steel slag capturing cement kiln flue gas CO2 to prepare carbon sequestration auxiliary cementitious materials and low-carbon cement". 1。 0HTML0UNK32

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Under the background of "double carbon" strategy, the cement industry will probably be included in the national carbon trading market, and CCUS will be the technology that can not be ignored for cement enterprises to win the "double carbon" track in the future.

2023-08-24 09:08:40