颠覆性突破!不粉碎、不煅烧,常温下就能生产水泥?

2023-06-26 11:33:59

从上述来看,若想降低水泥行业碳排放,寻找一种低碳或无碳的水泥制造方法或是关键要素。

全球碳排放总量中,水泥行业贡献了碳排放总量的7%。如果将全球水泥行业看作一个国家,那么它将是仅次于中国和美国的第三大碳排放国。

中国水泥网水泥大数据研究院首席分析师郑建辉曾表示,2022年全球水泥碳排放27亿吨左右,占全球能源相关碳排放的7.5%。前12个水泥生产大国占全球水泥产量比例达77%,水泥碳减排任务重。

水泥行业碳排放分为直接排放和间接排放,直接排放包括燃料燃烧排放和生产过程(碳酸盐分解)排放两部分;间接排放包括水泥生产环节中的电力消耗、以及发电、供热和运输等非生产环节的能耗所折合的二氧化碳排放。

水泥行业二氧化碳排放主要源于熟料生产过程,其中碳酸盐分解所排放的二氧化碳,约占碳排放总量的60%;燃料燃烧产生的二氧化碳,约占排放总量的35%;电力消耗间接产生的二氧化碳,约占排放总量的5%。

从上述来看,若想降低水泥行业碳排放,寻找一种低碳或无碳的水泥制造方法或是关键要素。就在日前,美国麻省理工学院著名材料学教授蒋业明和加拿大33岁的女化学家利亚·埃利斯经过多年努力,开发出了用电解器代替最耗能的窑炉,在常温下从各种丰富的钙源制造水泥的方法,从而避免了使用化石燃料,以及从石灰石中释放二氧化碳。

该方式的生产原理是:将易于获取的石灰石、石膏、海藻酸钙等钙源,不经预处理或粉碎就放入水中,然后通上电进行电解,让钙离子从溶液中析出,沉积在电极上。之后将钙与其他成分混合,形成一种可直接替代现有混凝土配方中的水泥材料。这种材料具有与今天的波特兰水泥相同或更好的强度、坍落度和耐久性。

这种工艺相对于传统的水泥制造方法,具有4个优势:

一是可以显著降低水泥制造的碳排放,是第一个既消除了石灰石排放,又消除了高温燃烧过程中化石燃料排放的水泥生产工艺。

二是可以利用低成本的可再生能源,如风能或太阳能来驱动电化学反应,它不仅可以降低能源消耗和成本,还可以提高能源效率和利用率。

三是可以提高水泥的质量和性能,因为它可以使用各种钙源,而不受原料的限制,生产出来的水泥也与传统水泥兼容,无需改变现有的混凝土配方或设备。

四是这种材料可直接用于建筑和基础设施等领域,无需对混凝土搅拌机或输送设备进行任何改造。

尽管电化学水泥还具有较大争议性,但如果真的能够量产,电化学水泥无疑将彻底颠覆传统水泥的生产方法,促进清洁技术的发展和应用,从而对整个世界产生积极的影响,为我们建设一个更美好、更绿色、更可持续的世界做出贡献。

2023年7月6-7日,中国水泥网将在重庆举行“2023中国水泥节能与新能源发展大会”,从节能改造,光伏、储能等技术应用,绿电、替代燃料替代传统能源转型等方面出发,共同探讨水泥行业节能降耗新途径。

会后将参观东方希望重庆水泥预热器“5级改6级”节能示范线、蒸汽拖动风机节能项目等。

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As Dong Shihong said, "Carbon is the future". At the intersection of history and future, Shijing Science and Technology, with low carbon as its pen, helps the cement industry to depict a harmonious picture of green mountains, green waters and industrial prosperity, and casts a hard backbone of sustainable development in the blending of grey and green.

2024-11-04 09:35:58

At the meeting, Yan Haochun brought the theme report "Dream of Blue Sky: Exploring the Green Footprint of Cement Industry in the Context of Carbon Market". She pointed out that the cement industry faced the risk of rising costs in the context of the carbon market.

2024-11-01 16:10:56

The incorporation of the cement industry into the national carbon market will have a significant impact on cement enterprises in terms of production and operation, data control, transaction costs, energy saving and carbon reduction investment. With the carbon quota from basic satisfaction to tight reduction, it will effectively promote production reduction, thereby affecting competitiveness and supply and demand pattern.

2024-11-01 09:52:46

In this journey of green transformation, the cement industry is firmly moving towards a low-carbon future, from technological innovation to management optimization, from the application of clean energy to the promotion of alternative fuels, each initiative is depicting a new journey for the industry. Let us work hand in hand to lead the wave of emission reduction with innovation, fulfill the green mission with practical actions, write a brilliant chapter of green and low-carbon development of the cement industry, and contribute to the construction of a beautiful earth.

2024-10-31 09:43:57

Based on the market situation of the cement industry and the demand for high-quality and low-carbon development of Conch Cement, Conch will strengthen the research and development of technologies such as energy saving and carbon reduction, green environmental protection, clean energy and low-carbon cement. The main research directions of Conch's scientific and technological innovation in the future are as follows: 1. Research and development project of raw material and fuel substitution in the cement industry; 2. Research and development project of cement clinker quality improvement; 3. Energy-saving and carbon-reducing technical equipment R & D project; 4. Clean and green energy R & D and manufacturing project; 5. Future carbon technology industry exploration project.

2024-10-29 16:34:25

On October 25, the "2024 China Cement Double Carbon Conference and the 12th Energy Conservation and Environmental Protection Technology Exchange Conference" continued brilliantly. Gao Dengbang, President of China Cement Association, Zhu Shengli, General Manager of Anhui Conch Group Co., Ltd., Lv Zhijian, President of Xinjiang Building Material Industry Association, Ma Weiping, Chairman of OCC, Jiang Dehong, Vice President and Chief Engineer of Tianshan Material Co., Ltd., Li Jian, Associate Researcher of China Academy of Environmental Sciences, and Fan Yueming, Professor of South China University of Technology. Zhuge Wenda, Chairman of Hubei Century Xinfeng Leishan Cement Co., Ltd., Yan Haochun, Technical Director of China National Inspection and Testing Holding Group and General Manager of Certification and Evaluation Center, China Architecture

2024-10-25 10:53:14

On October 24, the "2024 China Cement Double Carbon Conference and the 12th Energy Conservation and Environmental Protection Technology Exchange Conference" was held in Wuhu, Anhui Province. Gao Dengbang, President of China Cement Association, Zhu Shengli, General Manager of Anhui Conch Group Co., Ltd., Lv Zhijian, President of Xinjiang Building Material Industry Association, Ma Weiping, Chairman of OCC, Jiang Dehong, Vice President and Chief Engineer of Tianshan Materials Co., Ltd., Li Jian, Associate Researcher of Chinese Academy of Environmental Sciences, Fan Yueming, Professor of South China University of Technology, Zhuge Wenda, Chairman of Leishan Cement Co., Ltd., Century Xinfeng, Hubei, Yan Haochun, Technical Director of China National Inspection and Testing Holding Group and General Manager of Certification and Evaluation Center.

2024-10-24 16:55:38

According to the statistics of China Cement Network, the annual carbon emissions of the cement industry exceed 1.2 billion tons of standard coal, second only to the power and steel industries, including more than 100 cement enterprise groups with annual carbon emissions exceeding one million tons. In the next stage, with the establishment of the carbon trading market, the cement industry will face unprecedented opportunities and challenges. The introduction of carbon trading mechanism will encourage enterprises to take the initiative to reduce emissions, transform the cost of carbon emissions into economic benefits, and promote the industry to develop in a more environmentally friendly and efficient direction. "Double carbon" is not only a responsibility, but also a cost and benefit.

2024-10-24 09:22:35

In general, if the alternative fuel is mainly domestic waste or general industrial combustible waste, when the substitution ratio is high, it may bring more alkali content to the clinker, thus causing the 28-day strength of the clinker to decrease. Because the calorific value, combustion rate and feeding rate of alternative fuels fluctuate greatly, the output and quality of clinker will also increase.

2024-10-18 09:17:18

Every employee should know what emission sources are available in his position, what emission reduction measures are available, and how much emission reduction can be achieved by these measures, so that they can understand the principle of emission, learn the method of accounting, use the carbon management platform, and improve the carbon management ability of each position, so as to achieve "carbon management in the whole process".

2024-10-16 13:15:57

The cement industry has been clearly included in the carbon emissions trading market in 2024. Cement enterprises need to comprehensively and accurately understand the relevant regulations and guidelines. According to the actual situation of the enterprises themselves, they should seek advantages and avoid disadvantages, turn inward, practice hard, continuously reduce their carbon emissions per ton of clinker, reduce the production cost of clinker, and win in the current industry trend. So that their enterprises can survive and develop better.

2024-09-25 09:05:05

Although the road of carbon emission reduction in the cement industry is full of challenges, through continuous technological innovation and industry practice such as "steel slag phase-separated clinker", we have reason to believe that the cement industry can surpass the "face-saving project", realize the real green transformation, explore a sustainable road of cement concrete development, and leave a cleaner and sustainable earth for future generations.

2024-09-24 14:31:59

Looking forward to the future, in order to achieve full carbon neutrality in the cement industry, we need not only the drive of technological innovation, but also the cooperation of policy support and market mechanism. By adopting non-carbon raw materials, alternative fuels, clean energy and optimizing transportation modes, the cement industry will gradually achieve a significant reduction in carbon emissions, thus taking a more solid step on the road of carbon reduction.

2024-09-13 13:55:48

Many contents in the Plan are closely related to the cement industry, such as continuously promoting the reduction of excess capacity and capacity replacement, transformation and upgrading of the cement industry; promoting new energy medium and heavy trucks in the cement industry and developing zero-emission freight fleets; striving to complete the treatment of ultra-low emission transformation projects of cement clinker and coking enterprises in key cities by 2025; To study the multi-source and whole-process control and monitoring and supervision technology of volatile organic compounds, and to carry out research on key technologies of pollution reduction and carbon reduction in key industries such as parks, cement and steel.

2024-09-06 10:01:57

The cement industry will soon be incorporated into the carbon trading market, and the importance of green low-carbon transformation has become increasingly apparent. In response to the policy guidance, China Cement Network will hold the "2024 China Cement Double Carbon Conference and the 12th Energy Conservation and Environmental Protection Technology Exchange Conference" in Wuhu Conch International Hotel on October 24-25. The conference will focus on the core issues of low-carbon development and green upgrading in the cement industry, discuss the application of energy efficiency improvement and energy-saving and carbon reduction technologies, and how the cement industry can use the carbon trading mechanism to promote its low-carbon transformation.

2024-09-04 15:34:06

In recent years, the domestic demand for cement has declined significantly. Statistics from the National Bureau of Statistics show that domestic cement production in 2023 was 2.023 billion tons, down about 5% from the same period last year, and by the first half of this year, the decline in demand had expanded to 10.67%.

2024-07-29 09:34:25

Shandong Province issued the Action Plan for Upgrading the Building Materials Industry (2024-2026), which aims to promote the green, low-carbon and high-quality development of the building materials industry. The action plan focuses on the cement industry and puts forward the tasks of stable growth, structural adjustment, digital transformation, green manufacturing and safety improvement.

2024-07-01 17:05:09

By the end of 2023, the total production capacity of cement clinker in China is 1.803 billion tons, which means that the energy efficiency of 288 million tons of production capacity has not yet reached the benchmark level.

2024-06-20 10:19:44

Under the leadership of Dong Shihong, Shijing Science and Technology has never forgotten its original intention of "green", firmly anchored the concept of green development in the torrent of the development of the times, and painted a magnificent and vibrant panorama of green ecological industry with practical actions.

2024-06-20 09:47:34

Chongqing Conch Cement Company uses biodegradation technology to treat kitchen waste and convert it into oil and organic fertilizer raw materials, thus realizing waste recycling. This first cement kiln co-processing system in China helps to reduce carbon dioxide and other harmful gas emissions and promote green development. Zhongxian County cooperated with Chongqing Conch to invest in the construction of kitchen waste treatment projects, which solved the problem of kitchen waste treatment in the local and surrounding districts and counties. At the same time, the company itself is also transforming to digitalization and greening, reducing carbon emissions and winning a number of national green titles.

2024-06-19 12:19:34

Green is the background of high-quality development of cement industry.

2024-06-18 14:36:10

On June 13, the 11th China Cement Energy Conservation and Environmental Protection Technology Exchange Conference and Equipment Renewal Forum, sponsored by China Cement Network, was held in Nanjing, Jiangsu Province.

2024-06-13 16:36:33

The objectives and tasks put forward in the Action Plan are clear, the safeguard measures are strong, and the guidance and operability are strong, which is of great significance to promote the green and low-carbon development level of the cement industry.

2024-06-07 23:36:27

It is not a day's work for the cement industry to reduce carbon. It needs to start from technology, raw materials, fuel, production management and policy response to form a comprehensive strategy to promote the industry's transformation to low carbon and contribute to the global carbon neutrality goal.

2024-06-03 10:04:44

By the end of 2025, the proportion of production capacity above the benchmark level of energy efficiency in cement and ceramics industries will reach 30%, that of production capacity above the benchmark level of energy efficiency in flat glass industry will reach 20%, and that of production capacity below the benchmark level of energy efficiency in building materials industry will be completed or eliminated.

2024-05-29 20:21:02

At present, we are actively promoting the implementation of the energy conservation and carbon reduction technology project of replacing fossil fuels with biomass fuels. After the construction and implementation of the project, it is estimated that about 2% of coal will be saved annually. 0.5 million tons, reducing carbon dioxide emissions 4. 390000 tons, with obvious energy saving and emission reduction benefits.

2024-05-23 09:51:10

Looking forward to the future, we are full of expectations and hope that the cooperation between Shijing Technology and Baowu Group can be deepened and expanded to create more new chapters of carbon reduction. At the same time, we also look forward to the low-carbon environmental protection projects of Shijing Science and Technology, which will bear fruitful results and sow the seeds of hope for the green future of the earth!

2024-05-22 17:19:50

The project uses non-carbon raw materials such as steel slag to capture flue gas CO2 in situ at low cost. After carbon capture, steel slag becomes auxiliary cementitious material for carbon sequestration, which can be used in low-carbon cement production.

2024-05-22 16:26:55

By the end of 2025, 50% of the cement clinker production capacity in the whole region will be transformed; by the end of 2028, the cement clinker production enterprises in the whole region will be basically transformed.

2024-05-15 17:00:23

"Standing at the new historical starting point of the development of ecological civilization, only by anchoring the new track of green and low-carbon development and protecting the green mountains and rivers can we win Jinshan and Yinshan." Xiao Zhanding, party secretary and chairman of Qianye Cement, said.

2024-05-11 10:11:27

In the next step, enterprises at all levels of China National Building Material Co., Ltd. will continue to implement Xi Jinping's ecological civilization thought, uphold the enterprise mission of "materials create a better world" of China National Building Material Co., Ltd., further restore green, expand green and increase green, actively carry out the construction of green factories and ecological factories, build garden factories and beautiful factories, and promote the harmonious coexistence of enterprises and nature, man and nature.

2024-05-06 09:24:59

"Only when there is a practical effect can it be regarded as a real carbon reduction."

2024-04-26 10:22:19

Yang Shuiping pointed out that energy conservation and carbon reduction are not contradictory to the benefits of enterprises, but can promote each other and develop together. Cement industry can start from two aspects to ensure enterprise efficiency in the process of promoting carbon reduction.

2024-04-07 10:40:53

Tao Congxi mainly analyzed the current situation of carbon emission in cement industry, the technical path of carbon emission reduction at home and abroad, the "3C" carbon neutralization technology in cement industry, and the "3C" carbon neutralization practice cases in cement industry.

2024-04-03 13:58:22

On March 28, the 13th China Cement Industry Summit and TOP100 Award Ceremony hosted by China Cement Network was held grandly.

2024-03-28 18:30:58

The building materials industry is required to speed up the optimization and upgrading of the industrial structure, vigorously promote energy conservation and carbon reduction, and comprehensively improve the utilization rate of resources.

2024-03-25 14:07:30

The plan requires that by the end of 2025, the comprehensive energy consumption per unit product of cement clinker will be reduced by 3.7% compared with the end of 2020.

2024-03-21 10:28:24

Hefei South has made every effort to build a new modern factory for green intelligent manufacturing, and has built a demonstration line of green low-carbon technology and equipment for cement, which is ready for transformation and upgrading, and realizes the green development of ecological priority.

2024-03-15 11:01:01

According to the cement network market data center news, this week, Ningxia, Qinghai, Xinjiang regional market has no significant change, cement quotation is mainly stable.

2024-03-01 17:18:04

Focus on reducing cement clinker production capacity in areas where limestone resources are scarce and air quality is poor, and support clinker production enterprises to carry out layout outside the province and transfer to key construction areas determined by the province. We will further study and implement the integrated withdrawal plan for cement clinker production lines with a capacity of 2500 tons per day or less.

2024-01-26 14:20:19

In recent years, in order to achieve the "double carbon target", the cement industry has continuously promoted the exploration on the development path of "CCUS" technology, but it is still difficult to significantly reduce the carbon emissions of cement enterprises through "CCUS".

2024-01-19 16:34:32

When the reference oxygen content of the cement kiln and the waste heat utilization system at the kiln tail is 10%, the hourly average emission concentrations of particulate matter, sulfur dioxide, nitrogen oxides and ammonia are not higher than 10, 35, 50 and 8 mg/m3 respectively.

2024-01-15 09:15:17

The market is stable, Henan fell more than 5%; "2023 Top 100 List of China's Cement Clinker Production Capacity" was released; the Ministry of Industry and Information Technology announced 27 industry standards related to cement, sand and concrete!

2024-01-02 15:02:03

In the second half of the 14th Five-Year Plan, the cement industry should focus on strengthening energy conservation, carbon reduction and emission reduction, and must strengthen confidence. In the first half of the 14th Five-Year Plan, the expected reduction of energy consumption per unit GDP, the reduction of carbon dioxide emissions per unit GDP, and the ratio of days with good air quality in cities at prefecture level and above have been completed.

2024-01-02 14:18:21

水泥行业应认清形势变化,捕捉低碳大势带来的商业模式变革机会。

2023-12-29 15:02:54

此举将进一步推动水泥行业加速新能源化进程。

2023-12-26 15:35:54

这里的水泥厂是华润建材科技旗下的封开水泥,它是华润建材科技规模最大、投资最多、战略位置最重要的水泥生产基地,同时也是封开县的龙头企业之一。

2023-12-21 14:04:07

中国建筑材料联合会阎晓峰会长明确提出,水泥行业提前实现碳达峰已成为现实,建材行业全面实现碳达峰,迈向碳中和的时代正在到来。

2023-12-14 09:21:30

11月3日,广西壮族自治区工业和信息化厅发布了《关于印发广西壮族自治区工业领域碳达峰实施方案的通知》。

2023-11-21 10:22:49

目前,西藏自治区仍处在基础设施建设的高峰期,水泥需求端支撑力度尚可,但考虑到前期产能增长,行业供应压力仍存,市场行情取决于实际产能释放情况……

2023-11-13 14:11:28

Recently, due to the persistent cost pressure in the south, the price of concrete has risen slightly with the raw materials, but the growth of market demand is limited, and the overall quotation is still stable. From October 31 to November 6, the national concrete price index closed at 112.47 points, up 0.31% annually and down 10.11% year-on-year.