Effectively reducing carbon emissions and achieving the goal of "double carbon" are the problems that the whole cement industry and even the building materials industry need to deal with together. In the process of energy saving and carbon reduction, what are the key points and difficulties to be solved urgently by cement enterprises, and how to deal with them? Recently, China Cement Network has communicated with Yan Haochun, General Manager of the Chief Engineer Certification and Evaluation Center of China National Inspection and Testing Holding Group Co., Ltd.
Yan Haochun pointed out that the National Development and Reform Commission and other departments jointly issued the Special Action Plan for Energy Conservation and Carbon Reduction in Cement Industry, aiming to form about 5 million tons of standard coal energy saving and carbon dioxide emission reduction of about 13 million tons by the end of 2025 through the implementation of a series of transformation and renewal. The key tasks include optimizing industrial layout and capacity regulation, accelerating energy-saving and carbon-reducing transformation and energy-using equipment renewal, implementing low-carbon fuel substitution, and promoting green transformation of cement production methods and products.
Yan Haochun said that first of all, the adjustment of product structure is a major difficulty. According to Enterprise Greenhouse Gas Emission Accounting and Reporting Cement Industry, the carbon emissions from limestone decomposition account for more than 60% of the total emissions. How to adjust the formula, improve the process route and adjust the cement product structure is a major problem for every building material worker. The key to reduce cement carbon emissions is to further encourage the development and use of new low-carbon cement products such as low-calcium cement clinker and low-clinker coefficient cement, so as to achieve real carbon reduction at the source.
Secondly, the transformation of energy structure is a key challenge. On the one hand, cement production is highly dependent on fossil fuels, especially coal, and the carbon emissions from coal combustion account for more than 35% of the total emissions. On the other hand, part of the energy used in cement production is electricity, accounting for about 5% of the total emissions. In order to effectively reduce carbon emissions, it is necessary to further adjust the energy structure, not only to study alternative fuels, but also to use more renewable energy and clean energy, and at the same time, to speed up the transformation of energy saving and carbon reduction and the renewal of energy-using equipment, and to "achieve carbon reduction in the process" of cement production by means of technological upgrading.
In addition, collaborative disposal is also an urgent problem to be solved. As we all know, the high temperature of cement kiln can dispose of a lot of dangerous solid wastes such as domestic waste, industrial solid waste and medical waste, which contain a certain calorific value and release a part of heat after high temperature incineration, which can replace a part of fuel coal and reduce carbon emissions, which we call "fuel substitution". However, because the source of this part of fuel is unstable and it is not a homogeneous product, it will have a certain impact on the production conditions and product quality. Therefore, while encouraging fuel substitution, relevant supporting policies and stable treatment technologies should be studied to provide homogeneous and sustainable alternative fuels, further reduce carbon emissions in the cement production process, and promote "process carbon reduction".
Moreover, it is necessary to implement the whole process of carbon management in cement enterprises, so that each employee knows what emission sources are in his position, what emission reduction measures are available, and how much emission reduction can be achieved by these measures. Let them understand the principle of emission, learn the method of accounting, use the carbon management platform, improve the carbon management ability of each post, and then achieve the "whole process of carbon management".
With the increasingly stringent environmental protection laws and regulations, cement enterprises need to constantly adapt to the new policy requirements to ensure that the production process meets the environmental protection standards. To this end, enterprises are encouraged to use advanced technologies such as industrial Internet, big data and artificial intelligence to improve the level of production intelligence and realize digital energy and carbon emission management. Through these technical means, enterprises can more accurately monitor and control energy consumption and emissions in the production process, optimize the production process, and improve the efficiency of resource utilization, thus promoting the development of the cement industry in the direction of green and low carbon. This will not only help enterprises reduce operating costs, but also enhance market competitiveness and achieve sustainable development.
Generally speaking, in order to achieve the goal of "double carbon", cement enterprises need to take comprehensive measures in energy structure transformation, production process improvement, waste utilization and compliance with policies and regulations to continuously promote technological innovation and management improvement. Draw a new chapter on
energy conservation and carbon reduction, and speed up green development. 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. At the meeting, Yan Haochun will give a wonderful speech on carbon policy and countermeasures of cement enterprises. Sign up quickly!
