In industrial production, traditional energy intensive industries such as steel, petrochemical and cement have high carbon emissions, complex process and high cost of carbon reduction. Therefore, they have been widely regarded as the highly difficult field of carbon reduction. There are many challenges in the path of carbon neutralization in industry.
At present, sintering and blast furnace converter production are the core links of carbon emission; Although short process EAF steelmaking has obvious carbon emission advantages, there is a large gap in production cost.
The carbon emission is relatively concentrated, and the emission of a single emission source is large and the intensity is high.
The main carbon emissions come from the large amount of carbon dioxide emissions generated by the decomposition of raw materials in the calcination process and the production energy consumption emissions.
Future emission reduction path in industrial field
Policy planning end to achieve industrial upgrading of high emission industries
On the one hand, we must strictly control the new production capacity of traditional high energy consuming industries and adjust the product and industrial structure; On the other hand, policies encourage and support the development of modern high-tech industries, advanced manufacturing, digital industry and other emerging industries.
Reduction of energy consumption demand in the whole product life cycle
Encourage to explore the feasibility of reducing energy demand at different nodes of the industrial sector value chain, and tap greater potential for carbon emission reduction of raw materials and production processes in the field of heavy industry. At the same time, industry (especially manufacturing) has a large amount of original data. The industry as a whole should gradually transform, drive production and manufacturing with data, connect the overall situation through artificial intelligence, digital twin and other technologies, and find non-traditional and high potential carbon reduction links.
Development and design stage: enterprises are encouraged to select large quantity and wide range of products closely related to consumers and mature conditions for green design and development, and seek alternative solutions for products requiring high carbon emission production path to reduce carbon emission from the source. Guide and support the development of circular economy and reduce energy demand by improving the utilization and recovery rate of key materials such as steel and plastics.
Production and manufacturing stage: improve comprehensive energy utilization efficiency and release industrial energy-saving potential by optimizing existing production capacity, upgrading general equipment, optimizing process flow and applying digital energy efficiency management platform.
Technology empowerment and emission reduction in industrial field
Life cycle low carbon design
Based on the concept of low-carbon in the whole life cycle of products, with the help of corresponding design platforms and management systems, reduce the consumption of raw materials from the design level, realize the lightweight of products, improve their production and transportation efficiency, simplify the product recovery or scrap process, and reduce the energy consumption and carbon emission of industrial products in the whole life cycle.
Low carbon alternative materials and additive manufacturing
Seek suitable low-carbon materials for replacement and improve the recycling rate of products and raw materials; Develop additive manufacturing technology to reduce the waste of raw materials in the production and manufacturing process; For highly customized, non batch and non continuous production product parts, additive manufacturing is adopted to avoid energy consumption waste in mold opening and other processes.
Production process simulation optimization and management
Using the production process modeling and simulation technology based on digital twin, establish accurate steady-state and dynamic mechanism models for the complete process flow, realize the interconnection between the virtual world and the real world, break the barriers between software, service and application development, and finally provide optimization decision-making suggestions for the existing production process flow, Reduce the consumption of raw materials and energy in the production process. Simulation optimization enables:
At the level of overall equipment effectiveness (OEE), it can help enterprises reduce equipment vacancy time, improve yield and indirectly achieve the purpose of emission reduction;
High automation drive chain energy saving and emission reduction
Adopt highly automated advanced equipment parts to improve the overall energy utilization efficiency of the equipment. For example, the speed and torque can be adjusted at any time through high-performance frequency conversion and servo drive to ensure that the transmission system can operate efficiently even under partial load; Accurate control and high-order dynamic response are realized in equipment process production through servo drive system, so as to improve overall production efficiency and reduce energy consumption; The frequency converter with energy feedback function is used to reverse transmit part of the energy in the process production, such as converting the braking energy into the kinetic energy required by the transmission system.
In addition, drive chain digitization can use virtual simulation to optimize design and identify wrong planning or over design; It can also efficiently collect and analyze operation data through cloud or edge computing capacity to realize fault pre maintenance and energy consumption analysis, and finally effectively reduce the carbon emission of the whole transmission system.
Siemens best practices sharing
Coca Cola Luohe plant energy management system
Coca Cola Luohe factory cooperates closely with Siemens to implement energy management system, establish automatic and real-time energy data acquisition system, and have powerful and flexible energy data analysis, such as team, batch and time interval; Realize the transparency of energy consumption and energy cost, and provide an open, fair and just data support platform for cost allocation and performance appraisal. After the application of siemens energy management system, the water utilization rate of Coca Cola Luohe plant has increased by 20%, the annual water saving has reached 82000 tons, and the annual carbon dioxide emission has been reduced by 3149 tons. It has become the first FMCG enterprise to pass LEED platinum certification.
Post time: Dec-22-2021