原料燃料替代:低碳水泥生产的关键

2023-08-16 10:04:21

要想实现低碳水泥生产,就需要进行原料、燃料的替代。

现有新型干法水泥生产工艺中,二氧化碳来源有两个:一是源自煤炭等化石燃料的燃烧;二是源自石灰石的分解,而低碳水泥可以通过使用替代成分等方式来最大限度地减少碳排放。

要想实现低碳水泥生产,就需要进行原料、燃料的替代:

燃料替代。使用垃圾、生物质等可燃废弃物以及绿氢、光伏等新能源,减少煤炭等传统化石燃料的消耗。数据显示,如果在水泥生产中使用40%的替代燃料,则每生产100万吨熟料将少排放约10万吨二氧化碳。

原料替代。我国水泥年产量约24亿吨,每生产1吨水泥熟料需要消耗约1.3吨的石灰质原料。电石渣、钢渣、矿渣等富钙废弃物,可以替代石灰石作为水泥生产用原料,能够节约大量的天然矿产资源,因此采用工业固体废弃物作为替代原料是水泥工业协同处置工业固废、减少天然矿物消耗、降低二氧化碳排放的重要手段之一。

目前,欧洲发达国家已有超过2/3的水泥厂使用替代燃料,可燃废物在水泥工业中的替代比例平均达20%,但我国燃料替代率整体偏低,推广应用仍有巨大的空间;而原料替代面临的问题是,富钙废弃物的可利用量难以满足水泥生产需求。 

要解决以上问题,实现水泥生产碳归零,水泥企业该如何入手?2023年9月12-13日,中国水泥网将在河南郑州举办“2023水泥‘双碳’大会暨第十届中国水泥节能环保技术交流大会”,将邀请行业专家就替代燃料(RDF/SRF)、协同处置等技术方案分享、固废资源化利用制备超细复合掺合料实践等主题进行深度探讨。

会议同期将举行“2023水泥行业‘双碳’先进企业”颁奖仪式以及“双碳”装备展,会后还将组织参观济源中联水泥有限公司“全球首条钢渣捕集水泥窑烟气CO2制备固碳辅助性胶凝材料与低碳水泥生产线”

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Alternative fuels, alternative raw materials and co-disposal are all effective measures for cement industry to reduce carbon emissions, transform the industry green and assume more social responsibilities, which not only have social benefits, but also have certain economic benefits. Cement production enterprises should actively create conditions for implementation.

2024-11-04 17:07:05

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

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

Since the end of the third quarter, the price of cement products in East China has risen, and the prosperity of building materials has recovered. With its strong competitive efficiency advantage, Shangfeng is expected to take the lead in benefiting, while its unique new economy equity investment business will further help the company maintain steady growth in performance with the upward cycle of semiconductor, new materials and other technology industries.

2024-10-29 20:15:23

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

Looking forward to the future, we still need to continue our efforts in breaking through the existing clinker system, innovating the design of new low-carbon clinker (new clinker), breaking through the time lag and multi-scale barriers, building a digital system without "gap" in the whole process, maximizing the value of data, and supporting low-carbon in the whole process (time-sharing power consumption, coal consumption, low-carbon ratio, etc.).

2024-10-29 14:07:23

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

Zhu Shengli said that Conch, as a leading enterprise in the industry, has been actively practicing the responsibility of large enterprises in recent years, keeping a close eye on the "double carbon" goal, adhering to the green and low-carbon transformation, continuously increasing pollution control, continuously promoting energy conservation and carbon reduction, and further developing circular economy, so as to ensure that the clean production of factories, the development and application of carbon emission reduction technology and the scale of green industry development are at the leading level in the industry.

2024-10-24 10:47:24

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

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

Recently, the Ministry of Ecology and Environment has formulated and issued the Guidelines for Accounting and Reporting of Greenhouse Gas Emissions in Cement Industry (CETS-AG-02.01-V01-2024) and the Technical Guidelines for Verification of Greenhouse Gas Emissions in Enterprises. Cement Industry (CETS-VG-02.01-V01-2024) and other four technical specifications for the national carbon emission trading market shall be implemented from the date of issuance.

2024-09-18 09:07:14

In order to make preparations for being incorporated into the national carbon market, we should actively establish and improve the dual-carbon planning system, management system, system, innovation system, trading system and capacity system, do a good job in the research of dual-carbon policy, find out the family background, consolidate the quality of data, decompose and implement the goal of carbon reduction, and strive to achieve the goal of carbon reduction. We will continue to promote the substitution of raw materials, the transformation of energy consumption structure, the acceleration of technological innovation, the promotion of green manufacturing and intelligent leadership, and the coordinated promotion of carbon reduction, pollution reduction and green expansion. Growth.

2024-09-13 16:07:12

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

Cement enterprises can manage carbon assets and gain advantages in the carbon market by finding out the family background and effectively managing carbon assets, setting up specialized agencies or departments to achieve low-carbon management, actively participating in carbon market transactions and accumulating experience, and developing carbon financial products to help their own development.

2024-09-12 09:09:57

TCC's new plant in Cameroon has three features: the use of low-carbon calcined clay, the availability of green electricity from abundant hydropower, and the use of biomass fuel.

2024-07-25 09:43:47

Shangfeng Cement has unique advantages in cost control, operational efficiency and industrial structure. Through efforts to improve its own capabilities and competitiveness, Shangfeng Cement has won the recognition of investors and shareholders through a series of practical actions to improve quality and efficiency, and promoted the comprehensive value of the company.

2024-07-19 09:35:56

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

Energy saving and consumption reduction is not only a response to environmental responsibility, but also the only way for the cement industry to break the cocoon and enter high-quality development.

2024-06-20 16:33:57

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

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

Chang An-ping believes that now, 200 years after the invention of Portland cement, there are only two kinds of cement industries left: those who are still waiting to see, those who are still fighting for production, and those who are looking forward to tomorrow, those who are determined to go all the way.

2024-05-24 09:30:01

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

Huaxin Hongta Cement (Jinghong) Co., Ltd. has a new production line of 2000 tons of cement clinker decomposed outside the kiln by dry process, with an annual output of 1 million tons of cement.

2024-05-17 13:45:36

Huaxin Building Materials has set an industry benchmark in energy saving and carbon reduction technology, and its technical level has reached international advanced standards, making an important contribution to green building and sustainable development.

2024-05-17 09:51:48

In the future, Huaxin Cement will continue to take green development as the core, continue to increase investment in pollution reduction, carbon reduction, energy saving and consumption reduction, promote the national "double carbon" work with practical actions, and provide Huaxin samples for traditional industrial enterprises to practice the road of green sustainable development.

2024-05-16 10:58:59

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

Superior enterprises are encouraged to integrate inefficient production capacity in the city through market-oriented mergers and reorganizations, and gradually withdraw from cement clinker production lines of 2500 tons per day or less (except special cement).

2024-05-07 15:19:25

The planned future aggregate production capacity of Shangfeng Cement can reach about 30 million tons.

2024-04-29 13:39:12

Gao Changming believes that China's cement industry should be a big probability event to meet the carbon neutrality standard in 2050.

2024-04-03 15:06:47

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 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

Promoting green and low-carbon development is not only an inevitable choice for the cement industry to respond to the challenges of global climate change and implement the sustainable development strategy, but also an inherent demand for the transformation and upgrading of the industry and the realization of high-quality development.

2024-03-01 15:38:02

Tongren Southwest Cement Co., Ltd. applies intelligent technology to optimize production and implement energy saving and emission reduction measures. The energy consumption per unit product reaches the first-class energy efficiency standard, and the carbon emission is better than the industry average. It has won the title of national green factory, and has built a green area to improve the ecological environment of the plant area.

2024-02-26 13:23:31

Anhui Zongyang Conch Cement Co., Ltd. was selected as the national green factory list in 2023, becoming the 27th national green factory of Conch Cement. Relying on intellectualization, environmental protection technology and clean energy, the plant has realized the full utilization of mine resources, zero waste discharge and the improvement of ecological environment, which reflects the efforts and responsibilities of enterprises in promoting green and high-quality development.

2024-02-26 11:34:45

Cement enterprises have always insisted on improving the level of ecological environmental protection and green development, serving the high-quality development of China Building Materials Co., Ltd. with high-level ecological environmental protection, and creating a series of intelligent and garden-style green factories.

2024-02-21 10:15:20

For more policies and data on carbon emissions in the cement industry, please check the Double Carbon Channel of China Cement Network.

2024-02-04 17:01:23

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 the future, Taiwan Cement Guigang Factory will devote itself to playing its leading role, constantly pursuing excellence and striving to achieve more outstanding results.

2024-01-25 10:01:32

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

A large amount of carbon dioxide is emitted in the process of cement production, but the demand for housing and public buildings in most major cities around the world is still growing, which is contrary to the international consensus on reducing greenhouse gas emissions. How to reduce carbon dioxide emissions in the cement industry has become the focus of attention.

2024-01-04 16:14:55

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.