Pulping/Fiber

The recovery boiler is the heart of the kraft pulp process, but it can also be the Achilles heel of the kraft pulp mill when it fails—resulting in unplanned downtime or catastrophic failure. Yet, in 2017 alone, three mills reported failure of their recovery boilers in North America.

The papers summarized here are from the TAPPI Journal June and July 2018 issues. TAPPI Journal is an online publication of relevant and timely peer-reviewed research delivered via email and free to all TAPPI members. To receive TAPPI Journal, join TAPPI at www.tappi.org. JUNE DELIGNIFICATION Using online bubble size and total dissolved solids measurements to investigate the performance of oxygen ...

Mills face many challenges in achieving water and air quality goals. To help meet these challenges, environmental group leaders have many resources, including peers inside the mill… and PEERS (TAPPI’s Pulping, Engineering, Environmental, Recycling and Sustainability Conference) outside the mill. Dan Curry, PEERS Environmental and Sustainability Track leader, explains. “Environmental and sustainability issues need to be part of the way ...

The industry has made huge strides in managing its air and water quality. For the past 75 years, NCASI has supported those efforts. When it comes to managing air and water quality, the hard truth is that, with seemingly unlimited resources available, mills of a century ago didn’t pay as much attention to effluent treatment or sustainability as they do ...

The papers summarized here are from TAPPI Journal’s April 2018 issue and May 2018 issue, which feature special peer-reviewed content from the 2017 TAPPI PEERS Conference. TAPPI Journal is an online publication of relevant and timely peer-reviewed research delivered via email and free to all TAPPI members. To receive TAPPI Journal, join TAPPI at www.tappi.org. PULPING Online measurement of bulk, ...

ALEXIS MÉTAIS AND EMIL GERMER Ozone is used worldwide on every continent—in ECF bleaching and TCF bleaching, on kraft and sulfite pulps, on hardwood and softwood pulps, and for pulp grades used in all sorts of end products such as tissue, printing and writing paper, viscose, and more. Four ozone bleaching facilities are set to start in 2018 and two ...

DEREK MAHLBURG Healthy gains in packaging and tissue outweighed the slide in graphic paper demand in 2016, allowing global paper and paperboard demand to grow by 1 percent, or 3.9 million metric tons. This expansion is somewhat subdued relative to the past 15 years’ average growth rate of 1.5 percent per year, but it represents an improvement compared to the ...

TEDD POWERS, FISHER INTERNATIONAL Global trade is one of the most important issues in the pulp and paper industry. While trade is a great opportunity for some, it is a great threat to others. In some regions, domestic producers worry about the impact imports will have on the profitability of their markets. For others, finding new customers beyond their borders ...

Reliability Interview: Steven Mjoen, Catalyst Paper