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Journal articles
Corrosion prevention in eletrical control rooms, TAPPI JOURNAL October 1989
Corrosion prevention in eletrical control rooms, TAPPI JOURNAL October 1989
Journal articles
Determining the size of a corona treating system, TAPPI JOURNAL September 1989
Determining the size of a corona treating system, TAPPI JOURNAL September 1989
Journal articles
Effects of corona retreatment on surface characteristics of oriented polypropylene films, TAPPI JOURNAL September 1989
Effects of corona retreatment on surface characteristics of oriented polypropylene films, TAPPI JOURNAL September 1989
Journal articles
Flash X-ray visualization of multiphase flow during impulse drying, TAPPI JOURNAL September 1989
Flash X-ray visualization of multiphase flow during impulse drying, TAPPI JOURNAL September 1989
Journal articles
Profile testing improves dryer section diagnostics, TAPPI JOURNAL, August 1990, Vol. 73(8)
Profile testing improves dryer section diagnostics, TAPPI JOURNAL, August 1990, Vol. 73(8)
Journal articles
Thermomechanical pulping of douglas-fir: mill and lab experiences at smurfit newsprint corp., TAPPI JOURNAL, October 1991, Vol. 74(10)
Thermomechanical pulping of douglas-fir: mill and lab experiences at smurfit newsprint corp., TAPPI JOURNAL, October 1991, Vol. 74(10)
Journal articles
Discussion of impulse drying physics: comments on e. l. back's 'why is press drying/impulse drying delayed?', TAPPI JOURNAL, September 1991, Vol. 74(9)
Discussion of impulse drying physics: comments on e. l. back's 'why is press drying/impulse drying delayed?', TAPPI JOURNAL, September 1991, Vol. 74(9)
Journal articles
Mixing water with electrical energy: successful printing with water-based inks, TAPPI JOURNAL, July 1992, Vol. 75(7)
Mixing water with electrical energy: successful printing with water-based inks, TAPPI JOURNAL, July 1992, Vol. 75(7)
Journal articles
Magazine articles
Pilot scale black liquor concentration using pressure driven membrane separation, TAPPI Journal April 2023
ABSTRACT: Black liquor concentration using pressure driven membrane separation has long been proposed as a means of achieving energy savings and breaking production bottlenecks. To date, limitations in membrane performance and stability under black liquor process conditions have prevented those promises from being realized out-side of tightly controlled laboratory settings. In this work, we describe the first successful pilot scale field deployments of a membrane system for black liquor concentration. Using a purpose-built system and commercial sized, spiral wound graphene oxide membrane elements, we have logged nearly 6000 h of runtime across deployments to multiple mill sites. We demonstrate concentration of black liquor from 14% to >20% total solids, while generating permeate water comparable in quality to that of evaporator condensate and an 81% reduction in energy consumption relative to evaporation. At a commercial scale, these results translate to $2 M/year in net energy savings for a typical mill, as well as an opportunity to support production increases or mill expansions. These results represent a significant leap forward in the ability of membrane systems to deliver substantial value via black liquor concentration.