What is Lianjing Carbon and Why Do We Use Them?

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The main raw materials are high-quality calcined petroleum coke and coal tar pitch.

The main processes include: raw material crushing, grinding, screening, kneading, molding, roasting, impregnation, secondary roasting, graphitization, machining and packaging.

According to the characteristics of product indicators, the production cycle of graphite block is about 90-110 days.

The graphite block is produced by advanced production technology and equipment. The product has the characteristics of large bulk density, high compressive and flexural strength, low porosity, corro...

Graphite block special carbon products can be divided into 0.8/2/4/6mm different particle sizes according to the particle size of raw materials. The product specifications mainly include rectangle: ...

The raw materials are high-quality petroleum coke and coal tar pitch graphitized at &#;.

It is mainly used for the purification of lithium battery cathode materials and the refining and purification of non-ferrous metals and new materials.

the negative electrode material is the carrier of lithium ions and electrons during battery charging, which plays the role of energy storage and release. In the cost of battery, negative electrode ma...

For more information, please visit artificial graphite blocks for sale.

On 15 March , Chinese President Xi Jinping pointed out that &#;achieving carbon peak and carbon neutrality is a broad and profound economic and social systemic change&#; and called for &#;putting energy and resources conservation in the first place&#;. Natural resources are the material basis, space carrier and energy source of high-quality development. The source of carbon emissions is resource utilization, and carbon reduction and removal also depend on resources. The improvement of carbon sink capacity is inseparable from natural resources. To achieve the goal of &#;double carbon&#;, it is necessary to consolidate the carbon sink capacity of the ecosystem, as well as enhancing its carbon sink increment. Among natural resources, forest carbon sinks, soil carbon sinks and karst carbon sinks have significant emission reduction potential and cost advantages, representing important means to deal with climate change. This paper reviews the relevant research results at home and abroad, summarizes the carbon sink estimation, carbon sink potential, carbon sink influencing factors, ecological compensation mechanism and other aspects, analyzes the path selection of establishing carbon sink green development, and puts forward corresponding policies and suggestions, providing a theoretical reference for the achievement of the carbon neutrality goal in the field of natural resources in China.

1. Introduction

Striving to achieve carbon peak by and carbon neutrality by is a major strategic decision made by China, an inevitable choice to solve the outstanding problems of resource and environmental constraints and realize the sustainable development of the Chinese nation, and a solemn commitment to building a community of human destiny. Achieving carbon peak and carbon neutralization is an extensive and profound economic and social systemic change, which cannot be achieved easily.

One of the prominent problems in promoting carbon peak and carbon neutralization is the contradiction between high carbon emissions and an insufficient carbon sink capacity, as well as the quantitative relationship between carbon sources and carbon sinks. Among them, carbon sources are a systemic problem based on the energy structure, which is related to the path of economic development and the adjustment of the industrial structure, and the core is to reduce the intensity and total amount of carbon emissions; carbon sinks are an indispensable link to achieve carbon neutralization, and negative carbon technology innovation will play a central supporting role. Natural resource work runs through the whole process and all links of the source&#;sink relationship, which is the key to solving this contradiction [1,2,3].

China is expected to emit about 12 billion tons of carbon per year in , and then gradually reduce carbon emissions to 3 billion tons per year by . While ensuring national economic development, this is a &#;difficult, heavy task, time is tight&#; work, if only rely on &#;emission reduction&#; is difficult to achieve carbon neutrality. Therefore, more and more attention should be paid to the way of &#;increasing carbon sink&#;, and the capacity of ecological carbon sink should be tapped to enhance the increment of ecosystem carbon sink. Therefore, it is very important to explore the implementation of carbon neutrality in the field of natural resources ( ).

Natural resources can help reduce carbon emissions by consolidating and enhancing the carbon sink capacity of the ecosystem and the implementation of underground carbon dioxide storage, to provide a strong guarantee for the realization of the goal of double carbon. Enhancing the carbon sink capacity of ecosystems involves the process of absorbing carbon dioxide in the atmosphere through afforestation, vegetation restoration and other measures, but it also emphasizes the balance and maintenance of various ecosystems and their interrelated whole in the global carbon cycle. From this point of view, the focus is on strengthening the overall protection of natural resources and maintaining their carbon sink stocks, rather than substantially increasing the carbon sink increment in the short term [4,5,6,7].

Part of the carbon dioxide emitted by human beings stays in the atmosphere, while the other part is absorbed by terrestrial and marine ecosystems, the latter mainly including forest ecosystems, river and lake wetland ecosystems and farmland ecosystems. Among them, forests are the largest &#;carbon reservoir&#; and the most economical &#;carbon absorber&#; in terrestrial ecosystems, with a contribution rate of about 80%, and their annual average carbon sequestration can offset 11% of fossil fuel carbon emissions in the same period. According to the research on the increase in the carbon sequestration of terrestrial ecosystems in China in recent decades, 60% of the increase in the carbon sequestration of plantations has come from the increase in forest area. In the future, we should consolidate the achievements of forest carbon sequestration, paying particular attention to the role of the carbon adsorption of forest ecosystems. Wetlands are an important source of carbon sinks in known terrestrial ecosystems, second only to forests, and play an important role in absorbing greenhouse gases from the atmosphere, slowing down global warming and achieving the goal of double carbon. As for farmland ecosystems, their role in carbon sequestration has not been recognized by the United Nations Intergovernmental Panel on Climate Change, and the main direction of enhancing farmland carbon sinks is to enhance soil organic carbon storage through actions to improve the quality of cultivated land and the application of sink-enhancing agricultural technologies [8,9].

It is worth noting that the weathering of carbonate rocks is also considered to be part of the terrestrial weathering process. Since , through the project of &#;Comprehensive Environmental Geological Survey of Carbon Cycle in Karst Basins of the Yangtze River, Pearl River and Yellow River&#; undertaken by the Chinese Karst Institute, the conceptual model of the karst carbon cycle at the basin scale has been established based on the research and analysis of historical data, and the migration and transformation process of the carbon element from inorganic carbon to organic carbon and then to inert organic carbon in karst basins has been clarified. The long-term dynamic monitoring results also show that 70% to 80% of the total carbon dioxide consumed by the atmosphere and soil by carbonate weathering in the whole basin is stable. This strongly responds to the international query about &#;the stability of carbon sink in chemical weathering of carbonate rocks&#; and thus draws the conclusion that the karst carbon cycle can produce carbon sinks on a short time scale, which provides a basis for carbon sink flux calculation and model research. Under the unified deployment of the China Geological Survey, the Karst Institute has carried out investigations and monitoring in the Yangtze River, Pearl River and Yellow River Basins in recent years. Based on the monitoring data of nine major river basins, the estimation results show that the carbon sink flux produced by the weathering and dissolution of carbonate rocks in China ranges from 0.3 billion tons per year to 72 million tons per year, with an average of 51 million tons per year. &#;The monitoring data has been used by the United Nations Intergovernmental Panel on Climate Change (IPCC)&#;, being adopted in its fifth report. Combined with long-term station data and climate change trends, the total annual carbon sink flux of terrestrial vegetation in China from to was 101 million tons. Therefore, in China, the karst carbon sink flux accounts for about 50% of the terrestrial vegetation carbon sink flux ( ) [10,11,12].

Although there are many types of carbon sinks in natural resource systems, what is the potential of their carbon sinks? How to help continuously consolidate and enhance carbon sink capacity from the policy level? How should its market economy potential and operation mode be carried out? These are all unsolved problems.In this research, we continue the massive literature reorganization and analysis work, in view of natural ecosystems (soil, forest and karst), analyze the characteristics of various carbon sinks, determine the contribution rate and economic value of various carbon sinks in the ecosystem to achieve the goal of carbon neutrality, which are closely linked to the requirements of the national &#;double carbon&#; strategy, and put forward some ideas and suggestions for natural resources to help achieve the goal of carbon neutrality. Therefore, this study provides scientific and technological support for the formulation of ecosystem carbon sequestration management strategies, and has strong policy guidance and applicability.