■ Winner - Taiwan Cement Co., Ltd.
- I. Strategic objectives
The so-called "circular economy" is to reduce the amount of waste, resources and harmlessness in the economic development, so that the economic system and the natural ecosystem can be harmoniously circulated to maintain the natural ecological balance. It is a trend of nearly ten years. Especially when the world is actively seeking solutions to the triple challenges of resource scarcity, environmental protection and economic development, the possibility brought by the circular economy has been valued by all countries and listed as a development focus.
The IPCC (Intergovernmental Panel on Climate Change) has included national energy policies, integrated waste management and integrated water resources management in climate change adaptation measures in the Climate Change 2007 Comprehensive Report. And the refining and manufacturing of raw materials will result in a large amount of energy consumption and greenhouse gas emissions. According to the statistics of the International Energy Agency's IEA and IPCC, the carbon dioxide emissions generated by the raw materials industry in the manufacturing industry account for about 65% of the industry. Among them, 25% of the steel industry, 19% from the cement industry, 3%, 4% and 4% respectively in the aluminum, plastics and paper industries. If it can create a recycling economy model for recycling in the manufacturing industry, reduce the refined production of raw materials. By replacing it with waste recycling, you can achieve significant carbon reduction and reduce greenhouse gas emissions (Allwood and Cullen, 2012).
In addition to recognizing the impact of the severe environment, the company has also fulfilled its corporate responsibility to promote the "green one-stop" policy, that is, the "green value chain strategy." Taking the cement factory as the core, we will do a good job in environmental protection of mines and cement plants, and integrate resources within the group to assist the central and local governments and enterprises to recycle waste. The actual waste treatment results show that the cement kiln can actually be in the circular economy. On the issue, we will achieve the reuse of resources.
Second, the responsibility of environmental protection
Continuing the core value of the company's “Environmental Responsibility is not a cost!”, which is based on sustainable development, and integrates R&D kinetic energy and its own resources in the cement industry and the Group to create a “green environmental value supply chain”. The Institute cooperates in research and development of innovations such as calcium loop carbon dioxide capture and microalgae cultivation to reduce greenhouse gas carbon dioxide emissions, and establishes the mold model of the CCUS application platform. With specific technical and economic feasibility assessment data, the company invests in The plant carries out commercial mass production of microalgae carbon sequestration and astaxanthin products, and incorporates into the company's new business development plan.
In addition, cement kiln, as the core technology of environmental protection, constitutes an environmental value chain, and properly functions as a secondary pollution-free material, and will produce waste materials with resource potential, making it an alternative raw material or alternative fuel for cement processes. Utilize the building materials that are available, and truly achieve the ultimate goal of green emissions with zero emissions. .
Third, R & D and innovation specific results
- 1. Technical specific results
At present, the industries that emit the most CO2 are power generation, plasticization, steel and cement. In order to fulfill its corporate responsibility and actively develop CO2 capture technology to further reduce its emissions, Taiwan Cement Co., Ltd. has cooperated with ITRI to develop related technologies and build the world's largest calcium-capacitor carbon dioxide pilot pilot plant at Taihua Hualian Peace Plant. The scale is 1.9 megawatts per hour (MWth), which is equivalent to capturing 1 metric ton of CO2 per hour. This is the world's largest CO2 capture test plant using calcium circuit technology to date. Based on the technical advantages of the above-mentioned calcium circuit for capturing CO2, the growth rate of microalgae is fast (about 15 to 200 times that of terrestrial oil source, 93,500 L/ha-yr), and the carbon fixation efficiency is high (10 to 50 of terrestrial plants). Times, 183 tons - CO2 / 100 tons - algae), and can capture carbon dioxide, separately culture carbon sequestration and high value-added microalgae, can effectively connect carbon capture and carbon application system, bring the industry to reduce carbon A total solution. Therefore, TCC and ITRI have jointly used CO2 to cultivate various microalgae, algae containing high monovalent substances, and long-term research on carbon sequestration of microalgae to extract biodiesel from algae, or to feed feed and healthy food. Using algae to enhance relevant economic benefits can also bring new industrial vitality.
In addition, the Company believes that the “green energy industry” extended by this technology is broader, and further use of CO2 added value can increase related benefits; therefore, further cooperation with the Institute of Industrial Engineering to develop microalgae carbon sequestration and utilization of related technologies, Actively invest in the research and development of key technologies to reduce the overall production cost and energy consumption of microalgae biofuels, further develop the growth control technology of high-yield astaxanthin, successfully connect carbon dioxide recycling, and lead the high value niche The innovative industry application model that the market cuts into, creating an "innovative carbon recycling economy" for the future utilization and sustainable development of microalgae biomass energy.
- 2. R & D integration specific strategy
The calcium-capacity capture CO2 pilot plant was built in the Republic of China in 100 years. The completion ceremony was completed on June 10, 102. A series of unit test runs, system commissioning and system-wide operation were carried out. The capture efficiency was >855% in November 102. Running test. More than 2,600 hours of operating experience has been accumulated before and after the completion of the plant. The relevant operating parameters have been mastered, and based on the operational experience, the system will continue to be adjusted and optimized for long-term stable operation.
The pilot plant will continue to conduct stable operation tests and optimization experiments to establish the design parameters required to amplify to 30MWt, and to reduce the operational fuel cost, which will be replaced by a feasibility assessment using coal as fuel. A new generation of capture systems will be developed, including a steam hydration reaction to enhance lime regeneration conversion rates and a multi-stage cyclone capture tower to increase energy efficiency. A new 500kWt pilot plant was established in November 2016 with a newly developed multi-stage cyclone capture system with a hydration reactor. The patented technology of low-cost bag culture and low-energy belt filtration in the application of microalgae cultivation in the study of microalgae carbon sequestration and aquaculture demonstration system, the cost of algae cultivation and harvesting of carbon-fixed microalgae < NT$40/kg, which is better than the industry's production costs.
In addition, in terms of resource recycling, we continue to explore the development of technology using cement kiln as the core of treatment. At present, waste coal ash and bottom ash generated in the coal-fired process of Heping Power Plant can be recycled as raw materials or grinding process of cement process. As a result of the addition, there is no commercial waste generated in the cement process. In 2016, the recycling rate of waste resources applied per unit of cement has increased to 16.7%.
(3) The integration effect of the Taiwan mud recycling economy
Through the management system, the company itself is doing a demonstration of environmental protection, energy conservation and carbon reduction. In the cement industry, recycling energy is used to create renewable energy, and in line with government policies, it is involved in the promotion of various renewable energy programs. The development of the platform helps the company solve the waste solution. The Su-Australian plant is the main treatment plant, including the calcium fluoride sludge in the semiconductor and integrated circuit industries, and assists in the treatment of the bottom slag and inorganic sludge of the waste incineration plant. In the future, the processing and testing of packaging strip waste (including sorghum) in the semiconductor packaging industry and waste film in the photovoltaic industry will continue. In addition, in order to assist in the treatment of domestic garbage in Hualien County, the Taimu Peace Factory has submitted a project plan to the Hualien County Government. The two sides plan to promote enterprises to participate in the public construction model and build a cement kiln with a daily processing capacity of 200 tons in the Peace Plant. Co-processing general waste treatment plants, in the future, it will be able to simultaneously process wastes such as pulp sludge, municipal sludge (water purification plant, aquaculture) in paper mills in Hualien County; and assist the Environmental Protection Agency's Recycling Management Fund Management Association and Hualien County Environmental Protection In the Peace Plant, the waste tire incineration treatment system was set up. The equipment was completed in June 2017. The incineration discharge monitoring was carried out in July and August 2017 to completely solve the problem of waste tire treatment in Hualien County.
In addition, it has established an innovative carbon cycle economy with the Institute of Industrial Engineering - "Microalgae Carbon Reduction and High Yield Astaxanthin Industry Application Model", which is verified by the mold factory of the CCUS application platform, with specific technical and economic feasibility assessment data. The company invested in setting up a factory to carry out commercial mass production of microalgae carbon sequestration and astaxanthin products, and incorporated into the company's new business development plan. In addition, the team of the Institute of Green Energy and the platform of the Institute of Industrial Science and Technology has won the 5th National Industrial Innovation Award of the Ministry of Economic Affairs with the “Innovative Carbon Cycle Economy “Microalgae Carbon Reduction and High Yield Astaxanthin Industry Application Model”, and 2016 In the year, the company won the R&D Innovation Award of the 13th National Innovation Award for the “Carbon Shrimp.”
■ Zhang Ming praises:
Taiwan Cement Co., Ltd. is a member of the association and the largest cement production company in China. Its Peace Mine mines marbles at an altitude of over 1,000 meters, using a green mining design that uses stage mining, vertical mine transport and a fully enclosed conveyor belt transport system. In addition, some of its cement plants have been cooperating with policies since 1970 to convert industrial waste into cement raw materials and fuels, creating new value and being a model for Taiwan's environmentally friendly circular economy. In 2011, it has cooperated with ITRI to research and develop plans to achieve a circular economy model that captures carbon dioxide and converts it into biofuels and astaxanthin. In addition, in response to the government's green energy development strategy, it plans to build green energy and waste. The material resource recycling base will build a cement kiln co-processing plant that can process 200 tons of domestic garbage per day at the Peace Cement Plant.
The company introduced foreign new technology, innovative processes, energy conservation and carbon reduction, and promoted the country's economic development. It has made outstanding contributions to the company's 106-year "Technical Medal".