Implement the "double carbon" strategy to help the green development of the paper industry

On August 15, the "2023 International Papermaking Technology Report" co-sponsored by the China Paper Society, the China Pulp and Paper Research Institute and the Brazilian Paper Society, and co-organized by the Book Zan Eucalyptus, was successfully held at the Shanghai World Expo Exhibition Center.

Sun Bo, Vice chairman of China Paper Society, Party Secretary, Chairman and general manager of China Pulp and Paper Research Institute; Jin Fuming, Director of Academic Exchange Working Committee of China Paper Society and Technical director of China Light International Engineering Co., LTD.; Fang Guiqian, Deputy director of Academic Exchange Working Committee of China Paper Society and researcher of Institute of Forest Chemical Industry of Chinese Academy of Forestry; Tian Chao, deputy general manager of China Pulp and Paper Research Institute, Cao Baoping, deputy general manager of China Pulp and Paper Research Institute, and speakers of the technical report attended the meeting.

The conference attracted nearly 200 representatives from domestic and foreign experts, scholars, enterprise representatives and teachers and students of universities in pulp and paper industry and upstream and downstream industries.

At the opening ceremony, Jin Fuming, director of the Academic Exchange Working Committee of China Paper Society and Technical director of China Light International Engineering Co., Ltd. gave a speech on behalf of the organizers. He first expressed his heartfelt thanks to the Brazilian Paper Society for the support of this technical report, and warmly welcomed the experts and guests attending the conference! Jin Fuming said that the proposal of the "double carbon" goal has redefined the target path of green low-carbon transformation and the mission vision of sustainable development for the pulp and paper industry. As one of the key industries in energy saving and carbon reduction, the pulp and paper industry must accelerate its transformation from clean and sustainable raw materials, digital and intelligent manufacturing processes, green and high-performance products, continue to optimize the industry structure, develop biomass and new energy projects, implement energy saving and carbon reduction actions, and promote the deep integration of industry and information technology. Promote the industrial Internet industrial upgrading, build a green and low-carbon industrial ecological chain, so as to better integrate into and serve the economy and society.

Mr. Darcio Berni, Executive Director of the Brazilian Paper Society, delivered an online speech on behalf of the Brazilian Paper Society and introduced the relevant situation of the pulp and paper industry in Brazil. Darcio Berni said that Brazil, as one of the world's leading pulp and paper producers, will continue to expand its investments in research and development, afforestation and innovative manufacturing. At the same time, we also hope to further expand cooperation with China's forest product processing industry, and jointly commit to developing professional technology of the whole industry chain of pulp and paper industry.

The technical report was chaired by Fang Guiqian, deputy director of the Academic Exchange Working Committee of China Paper Society and researcher of the Institute of Forest Chemical Industry of the Chinese Academy of Forestry. The meeting invited a total of 12 experts and scholars from China, Brazil and Australia to share hot topics such as how to change the energy saving and emission reduction technology of the paper industry under the background of "double carbon", develop paper-based advanced functional materials under the background of science and technology power, and realize the innovation and development of "replacing plastic with paper" under the background of limited (banned) plastic.

Grasp global market dynamics

Jointly build green and low-carbon industries

Ambassador Jose Carlos da Fonseca Junior, Executive Director of the Brazilian Forest Industry Association, delivered a keynote report on "The Brazilian Forest Industry", highlighting the outstanding contribution of the Brazilian forest industry to achieving carbon reduction and carbon neutrality in the current climate crisis. The Brazilian forest industry has developed about 5,000 renewable, recyclable, mostly biodegradable bio-based products, and the share of renewable energy generation has reached 90%.

Mr. Joao Cordeiro, head of the pulp and Paper Line of AFRY Group, introduced the dynamics of the global paper market and the development of the pulp and paper industry in China and Brazil under the title "Global Pulp and Paper Market dynamics - focusing on Brazil". Joao Cordeiro mentioned in the report that the global pulp trade volume has reached 70 million tons, and the fastest growing area of demand in paper products is paper towels and wrapping paper, driving the industry's demand for pulp and recycled fibers to further increase.

Give play to the green advantages of biomass

Realize high value utilization of resources

Professor Jin Yongcan of Nanjing Forestry University, with the title of "Carbon Properties and Lignin resource Utilization in pulp and paper Industry", introduced the main sources and development history of carbon emissions in the paper industry, analyzed the problems faced in realizing the goal of "dual carbon", and pointed out that the high-quality sustainable development of the paper industry needs to strengthen the recycling of waste resources and reduce energy consumption. Applying industrial lignin from pulping to agricultural and forestry crops is an effective way to realize lignin resource utilization and carbon balance of fiber raw materials.

Xu Junming, a researcher at the Institute of Forest Chemical Industry of the Chinese Academy of Forestry, published a report entitled "Development and cutting-edge Technology of Lignin based chemicals", introducing the strategy of high value utilization of wood fiber, such as thermal conversion of forest biomass into bio-fuel or separation and utilization to obtain lignin and cellulose, focusing on the development and cutting-edge technology of lignin based chemicals. Such as lignin separation, sulfonation, sealing, derivatives electrocatalytic reaction.

Jose Tomas Corthorn, Chief Representative of CMPC China, delivered a report on the theme of "CMPC's Strategy towards a Circular Bioeconomy", shared CMPC's rich and expanded experience in the whole value chain of the wood industry, and introduced its research and innovation in biomass products, sustainable packaging, pulp molding products and other aspects.

Construction of paper based material characteristics

Develop advanced functional materials

Professor Zhong Linxin of South China University of Technology made a report entitled "Paper-based flexible supercapacitor electrode". The functional properties and application potential of various paper-based flexible supercapacitor electrode materials, such as N-doped carbon sheet/polyaniline (PANI) nanocellulosic fiber flexible composite materials, ultra-high capacity foldable supercapacitor electrode materials, electrostatic self-assembly paper-based flexible composite electrode materials, were introduced.

Professor Nie Shuangxi of Guangxi University, entitled "Progress in Research and Application of Advanced Cellulose functional Materials", introduced the research progress and application prospect of advanced cellulose functional materials in energy collection and conversion, pulse direct current conversion, and water collection, and analyzed the research on molecular regulation, structural design, structure-activity relationship and other aspects of cellulose functional materials.

Professor Shen Wei of Monash University in Australia published a report entitled "Improvement Strategy of Paper-based analysis Device in colorimetric Performance and practical Application", summarizing the working principle of paper-based colorimetric analyzer (PADs) and the strategy of improving colorimetric performance and the design scheme of improving portability. In particular, the principle of controlling liquid-paper interaction based on PADs design to increase color saturation is discussed, and the image acquisition technology and image processing algorithm related to color accuracy and sensitivity are introduced in detail, which will help to develop and design PADs with higher sensitivity and portability.

Dr. Zhang Xue from China Pulp and Paper Research Institute published a report entitled "Research Progress on water Vapor barrier Properties of Paper-based materials". Starting from the multi-layered structure of paper-based materials, the transport mechanism of water vapor in the multi-layered structure of paper-based materials was introduced, and the difficulties of water vapor barrier were analyzed. The research progress of 3D internal structure control and surface structure modification to improve the water vapor barrier properties of paper based materials is introduced. The water vapor barrier properties of superhydrophobic paper based materials are evaluated.

Innovative pulp multiple transformation

"Paper instead of plastic" green development

Ms. Beatriz Santucci, Senior Researcher at Susanuno, presented a report on the topic "Development of Eucalyptus sulphate pulp as an alternative pulp for the manufacture of environmentally friendly packaging products", noting that Susanuno produces approximately 10.9 million tons of eucalyptus commercial pulp per year, with sustainable management models and production processes. Beatriz Santucci also mentioned that bleached hardwood kraft pulp has excellent physical properties and cost competitiveness, and its market demand will be further expanded in the future, and can replace other fiber raw materials, to achieve the goal of "fiber instead of fiber."

Professor Shen Jing of Northeast Forestry University, with the title of "Fiber source papermaking additives and technological innovation of" Paper instead of plastic ", proposed a research scheme to transform pulp fibers into multiple products by means of molding by comparing the cross-characteristics of plastics and papermaking fields. Professor Shen Jing said that the use of fiber source green paper additives can improve the porosity, wet strength, barrier properties of paper, etc., to achieve the development goal of "replacing plastic with paper".

Lucas Ornelas Jacinto, a senior researcher at Cunio, presented a report entitled "Eucalyptus pulp for pulp molding", presenting a strategy to promote sustainable packaging through the "pulp molding" of eucalyptus fibres. Eucalyptus wood fiber has low beating energy consumption, stable performance in the molding process, has good compressive and torsional properties, is suitable for pulp molding good material. Lucas said that at present, Shuzhunuo has jointly developed and evaluated the molding of 100% eucalyptus wood fiber pulp with partners in China and Sweden, and carried out industrial trial production.