Energy & Resources Integration
In climate change adaption, apart from reinforcing energy management,
We embark on energy-resources integration
For circular industrial development.
To enhance energy efficiency and raise competitiveness, CLC targets using co-generation with high thermoelectric performance in order to integrate electrical and thermal energy required for production. In addition, we exploit clean energy, such as wind power and solar energy, with regard to the geographical features of individual mills and plants. We also turn waste into resources to replace petrochemical fuels and thereby re-plan energy structures in order to minimize petrochemical fuel consumption and GHG emissions.
In 2000 we established the Energy Management Committee to enhance energy efficiency. In 2013 the Paper Division enrolled in the MOEA Energy Efficient Manufacturing System Beacon Guidance Scheme and implemented the ISO 50001 ErMS. In 2015 the Container Box Division also fully implemented the ISO 50001 Energy Management System (EnMS) to enhance energy management efficiency by continuously implementing the Plan - Do - Check - Act (PDCA) continual improvement framework.
Co-generation system with high thermoelectric performance
CLC has four co-generation systems. The 2016 autonomous electricity supply increased to 71.3% to significantly reduce purchasing electricity from Taiwan Power Corporation (Taipower). In addition, we could provide surplus electricity for Taipower to feed back supply in order to lessen the stress on Taipower’s reserve capacity. This marks out the characteristics and importance of the paper industry as a strategic industry for energy-resources integration. As a result, the purchased electricity demand for paper manufacture reduces every year as autonomous electricity supply increases. The 2016 statistics show that with autonomous electricity supply, the purchased electricity per unit of paper production was only 210kWh/t.
CLC Cogeneration System
|System by Mill||Houli Mill G1||Tayuan Mill||Houli Mill G2||Houli Mill G3|
|Boiler Efficiency (%)||87||90||90||90|
|Total Thermal Efficiency (%)||70||87||52||54|
|Coal Consumption (%)||100||100||100||67|
|Sludge Consumption (%)||--||--||--||27|
|Tire Consumption (%)||--||--||--||6|
|Steam Output (ton/h)||65||70||230||130|
|Generating Capacity (kWh)||9,620||10,800||48,000||29,000|
|List||Solar Energy||Wind Power||Biogas Boiler|
|Mill||Houli Mill||Chubei Mill||Tayuan Mill|
|Nominal output: 493.5 kW (1 set)||493.5kW||1,750kW||--|
|Output||554,100 kWh/year||2,789,700 kWh/year||--|
|Emission reduction||approx. 300t CO2e/year||approx. 1,560t CO2e/year||19,490t CO2e/year|
|Steam output||--||--||8,000 tons/year|
|Propane recovery||--||--||550 tons/year|
Performance of energy-resources integration
At CLC, our energy-resources integration covers four directions: wastepaper recovery and recycling, energy structure optimization, energy efficiency enhancement, and water resources cherishment.
1. Investing in advanced large paper machines to enhance production efficiency and reduce resources consumption.
2. Introducing co-generation systems using electricity and steam at the same time to enhance energy efficiency
3. Circulating production water use to reduce water consumption.
4. Introducing wind power and solar energy with regional geographical advantages.
5. Waste to resources: Replacing petrochemical fuels by turning process waste into RDF-5; recovering biogas from wastewater treatment after recovery and purification with the heat recovery system, and recovering ash and sludge to recycle into green construction materials.
6. Recovering process residual heat with heat pumps to reduce the waste of process waste heat.
Major Achievements in 2016 and Future Development of Energy-Resources Integration
|2016 Achievements in Energy-Resources Integration||Target|
|Recovered Paper Recovery and Recycling||Up to 92.6% of a total of 1.62 million tons of Recovered paper were recovered to reduce nearly 9.75 million t CO2e.||Continue to increase recovery rate.|
|Alternative Energy||Alternative energy use rate was up to 7.4% and continued to increase renewable energy such as wind power and solar energy. Reduced coal consumption of nearly 40,344 tons.||Increase alternative energy use rate to 15%.|
|Waste to Resources||Up to 70% waste was turned into resources. Promoting RDF-7 (gasification) and sludge gasification to turn waste into fuel to reduce environmental impacts.||Toward zero waste emission.|
|GHG Emissions||GHG emission intensity was 1.57 million t CO2e, down 5% from 2005.||Gradual reduction of GHG emissions.|
|Water Management||Total water consumption was up to 17,145,000m3, per unit of paper production reduced by 12-15% from last year.||Continuous reduction of water consumption.|