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New Pulp Mill Advances Sustainable Production
Wuzhou Special Paper selects ANDRITZ to supply key technologies for a greenfield pulp mill in China, supporting self-sufficiency and environmental performance.
www.andritz.com
Wuzhou Special Paper’s new greenfield pulp mill in China
© Wuzhou Special Paper
Wuzhou Special Paper has appointed ANDRITZ as the main supplier for a new pulp mill in Jiangxi Province, China, designed to enhance production autonomy and improve environmental performance.
Context: Securing pulp supply and compliance
As paper manufacturers face increasing pressure to ensure stable raw material supply and comply with stricter environmental regulations, investments in integrated pulp production are becoming more common.
Wuzhou Special Paper, which operates multiple paper machines, is developing its own pulp production capacity to reduce reliance on external suppliers while improving cost control and sustainability.
Project scope: Full-line pulp mill technologies
The project covers core process areas of a modern pulp mill, including fibre processing, chemical recovery, and energy generation. ANDRITZ will deliver a complete fibreline featuring continuous cooking, washing, screening, oxygen delignification, and multi-stage elemental chlorine-free (ECF) bleaching.
Advanced washing technologies are designed to reduce chemical consumption and operating costs while maintaining environmental performance.
Energy and recovery systems
The mill will include a recovery boiler operating at high steam parameters (515°C and 105 bar), supporting efficient energy generation and reduced emissions. Additional systems such as flue gas cooling and heat recovery contribute to improved energy efficiency.
A white liquor plant with integrated gasification enables fossil-free lime kiln operation, supporting decarbonisation goals. The recausticising system incorporates high-efficiency filtration and optimised chemical recovery processes.
Decarbonisation and environmental technologies
The facility integrates multiple solutions aimed at reducing emissions and improving environmental compliance. A biomass gasification plant will support renewable energy use, while an ash re-crystallisation system enables recovery of valuable chemicals and reduction of impurities.
A mill-wide non-condensable gas (NCG) system ensures safe handling and incineration of process gases, minimising odorous emissions and supporting regulatory compliance.
The ANDRITZ LimeBio-Gas biomass gasification plant is specifically designed for pulp mill lime kilns.
Deployment timeline and industrial context
The pulp mill will be constructed in Hukou County, Jiujiang City, with start-up scheduled for the first quarter of 2027. The investment builds on an existing partnership between ANDRITZ and Wuzhou Special Paper, including the commissioning of a high-capacity pulping system in 2024.
Operational impact: Efficiency and sustainability
By integrating pulp production with advanced process technologies, the project is expected to improve resource efficiency, reduce environmental impact, and enhance cost competitiveness.
The combination of energy recovery, chemical optimisation, and emission control systems supports a more sustainable production model aligned with industry and regulatory requirements.
Conclusion: Integrated approach to pulp production
The project reflects a broader trend toward vertically integrated and environmentally optimised pulp and paper production. By leveraging full-line technologies, Wuzhou Special Paper aims to strengthen supply security while meeting evolving sustainability and efficiency targets.
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.andritz.com
© Wuzhou Special Paper
Wuzhou Special Paper has appointed ANDRITZ as the main supplier for a new pulp mill in Jiangxi Province, China, designed to enhance production autonomy and improve environmental performance.
Context: Securing pulp supply and compliance
As paper manufacturers face increasing pressure to ensure stable raw material supply and comply with stricter environmental regulations, investments in integrated pulp production are becoming more common.
Wuzhou Special Paper, which operates multiple paper machines, is developing its own pulp production capacity to reduce reliance on external suppliers while improving cost control and sustainability.
Project scope: Full-line pulp mill technologies
The project covers core process areas of a modern pulp mill, including fibre processing, chemical recovery, and energy generation. ANDRITZ will deliver a complete fibreline featuring continuous cooking, washing, screening, oxygen delignification, and multi-stage elemental chlorine-free (ECF) bleaching.
Advanced washing technologies are designed to reduce chemical consumption and operating costs while maintaining environmental performance.
Energy and recovery systems
The mill will include a recovery boiler operating at high steam parameters (515°C and 105 bar), supporting efficient energy generation and reduced emissions. Additional systems such as flue gas cooling and heat recovery contribute to improved energy efficiency.
A white liquor plant with integrated gasification enables fossil-free lime kiln operation, supporting decarbonisation goals. The recausticising system incorporates high-efficiency filtration and optimised chemical recovery processes.
Decarbonisation and environmental technologies
The facility integrates multiple solutions aimed at reducing emissions and improving environmental compliance. A biomass gasification plant will support renewable energy use, while an ash re-crystallisation system enables recovery of valuable chemicals and reduction of impurities.
A mill-wide non-condensable gas (NCG) system ensures safe handling and incineration of process gases, minimising odorous emissions and supporting regulatory compliance.
The ANDRITZ LimeBio-Gas biomass gasification plant is specifically designed for pulp mill lime kilns.
Deployment timeline and industrial context
The pulp mill will be constructed in Hukou County, Jiujiang City, with start-up scheduled for the first quarter of 2027. The investment builds on an existing partnership between ANDRITZ and Wuzhou Special Paper, including the commissioning of a high-capacity pulping system in 2024.
Operational impact: Efficiency and sustainability
By integrating pulp production with advanced process technologies, the project is expected to improve resource efficiency, reduce environmental impact, and enhance cost competitiveness.
The combination of energy recovery, chemical optimisation, and emission control systems supports a more sustainable production model aligned with industry and regulatory requirements.
Conclusion: Integrated approach to pulp production
The project reflects a broader trend toward vertically integrated and environmentally optimised pulp and paper production. By leveraging full-line technologies, Wuzhou Special Paper aims to strengthen supply security while meeting evolving sustainability and efficiency targets.
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.andritz.com
