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Editorial: TAPPI Journal 2019 Best Research Paper addresses hard scale formation in green liquor pipelines, TAPPI Journal March 2020

ABSTRACT: TAPPI and the TAPPI Journal (TJ) Editorial Board would like congratulate the authors of the 2019 TAPPI Journal Best Research Paper Award: Alisha Giglio, Vladimiros Papangelakis, and Honghi Tran. Their paper, “The solubility of calcium carbonate in green liquor handling systems,” appeared on p. 595 of the October 2019 issue. This kraft recovery cycle research was recognized by the TJ Editorial Board for its innovation, creativity, scientific merit, and clear expression of ideas.

Journal articles
Magazine articles
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Fate of phosphorus in the recovery cycle of the kraft pulping process, TAPPI Journal March 2020

ABSTRACT: The accumulation of nonprocess elements in the recovery cycle is a common problem for kraft pulp mills trying to reduce their water closure or to utilize biofuels in their lime kiln. Nonprocess elements such as magnesium (Mg), manganese (Mn), silicon (Si), aluminum (Al), and phosphorus (P) enter the recovery cycle via wood, make-up chemicals, lime rock, biofuels, and process water. The main purge point for these elements is green liquor dregs and lime mud. If not purged, these elements can cause operational problems for the mill. Phosphorus reacts with calcium oxide (CaO) in the lime during slaking; as a result, part of the lime is unavailable for slaking reactions. The first part of this project, through laboratory work, identified rhenanite (NaCa(PO4)) as the form of P in the lime cycle and showed the negative effect of P on the availability of the lime. The second part of this project involved field studies and performing a mass balance for P at a Canadian kraft pulp mill.

Journal articles
Magazine articles
Subscription Access
Synthesis of filtrate reducer from biogas residue and its application in drilling fluid, TAPPI Journal March 2020

ABSTRACT: Biogas residues (BR) containing cellulose and lignin are produced with the rapid development of biogas engineering. BR can be used to prepare the filtrate reducer of water-based drilling fluid in oilfields by chemical modification. BR from anaerobically fermenting grain stillage was alkalized and etherified by caustic soda and chloroacetic acid to prepare filtrate reducer, which was named as FBR. The long-chain crystalline polysaccharides were selected as dispersing agents (DA), and the water-soluble silicate was used as the cross-linking agent. After the hot rolling of FBR in saturated saltwater base mud for 16 h at 120°C, the filtration loss was increased from 7.20 mL/30 min before aging to 8.80 mL/30 min after aging. Compared with the commercial filtrate reducers, FBR had better tolerance to high temperature and salt, and lower cost.

Magazine articles
Subscription Access
Calcium based sulfur recovery process for kraft black liquor gasification - proof of concept', TAPPI JOURNAL, July 2000, Vol. 83(7)

Calcium based sulfur recovery process for kraft black liquor gasification - proof of concept', TAPPI JOURNAL, July 2000, Vol. 83(7)

Magazine articles
Open Access
Modeling trs and so2 emissions from a kraft recovery boiler using an artificial neural network, TAPPI JOURNAL, November 2000, Vol. 83(11)

Modeling trs and so2 emissions from a kraft recovery boiler using an artificial neural network, TAPPI JOURNAL, November 2000, Vol. 83(11)

Magazine articles
Fine tuning pulping technology: a Solutions! roundtable, Solutions!, September 2002, Vol. 85(9) (321KB)

Fine tuning pulping technology: a Solutions! roundtable, Solutions!, September 2002, Vol. 85(9) (321KB)

Magazine articles
Seeking breakthrough technology in fiber use, Solutions!, September 2002, Vol. 85(9) (1228KB)

Seeking breakthrough technology in fiber use, Solutions!, September 2002, Vol. 85(9) (1228KB)

Magazine articles
Unexpected corrosion of stainless steel in high solids black liquor service, Solutions!, September 2002, Vol. 85(9) (411KB)

Unexpected corrosion of stainless steel in high solids black liquor service, Solutions!, September 2002, Vol. 85(9) (411KB)

Magazine articles
What is the future for key pulp grades?, Solutions!, December 2003, Vol. 86(12) (65KB)

What is the future for key pulp grades?, Solutions!, December 2003, Vol. 86(12) (65KB)

Magazine articles
Similar tactics reduce corrosion and crime, Solutions!, March 2003, Vol. 86(3) (240KB)

Similar tactics reduce corrosion and crime, Solutions!, March 2003, Vol. 86(3) (240KB)