Editorial: New research sheds light on critical processes in the recovery cycle, TAPPI Journal July 2026

 


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Author: Arthur J. Ragauskas
Editorial: New research sheds light on critical processes in
The chemical recovery cycle has been called the backbone of a kraft pulp mill, making modern paper production both economically and environmentally sustainable. It regenerates pulping chemicals (primarily sodium hydroxide and sodium sulfide) used to separate wood fibers, allowing them to be reused rather than continuously replaced, while also recovering energy by burning the organic components of black liquor to produce steam and electricity that supply much of the mill’s power needs. In addition, the recovery cycle minimizes waste, reduces emissions, and recovers valuable by-products, creating a highly efficient closedloop system. Without this process, chemical costs, energy consumption, and environmental impacts would increase, making large-scale kraft pulping significantly less economical and sustainable.
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