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Journal articles
Open Access
Stability and chemical resistance of forming fabrics to wet-end boilout conditions, TAPPI JOURNAL, April 1995, Vol. 78(4)

Stability and chemical resistance of forming fabrics to wet-end boilout conditions, TAPPI JOURNAL, April 1995, Vol. 78(4)

Journal articles
Open Access
A survey of the use of ozone in bleaching pulps, part 1, TAPPI JOURNAL, January 1992, Vol. 75(1)

A survey of the use of ozone in bleaching pulps, part 1, TAPPI JOURNAL, January 1992, Vol. 75(1)

Journal articles
Open Access
Visualization of the recovery-boiler flow fields predicted by computational fluid dynamics, TAPPI JOURNAL, March 1992, Vol. 75(3)

Visualization of the recovery-boiler flow fields predicted by computational fluid dynamics, TAPPI JOURNAL, March 1992, Vol. 75(3)

Journal articles
Open Access
Alkaline pulping kinetics of short-rotation, intensively cultured hybrid poplar, TAPPI JOURNAL, November 1992, Vol. 75(11)

Alkaline pulping kinetics of short-rotation, intensively cultured hybrid poplar, TAPPI JOURNAL, November 1992, Vol. 75(11)

Journal articles
Open Access
Survey of drum debarkers in roundwood chipping yards of southeastern united states, TAPPI JOURNAL, November 1992, Vol. 75(11)

Survey of drum debarkers in roundwood chipping yards of southeastern united states, TAPPI JOURNAL, November 1992, Vol. 75(11)

Journal articles
Open Access
Page ethanol-kraft pulping and papermaking properties of aspen and spruce, TAPPI JOURNAL, January 1997, Vol. 80(1)

Page ethanol-kraft pulping and papermaking properties of aspen and spruce, TAPPI JOURNAL, January 1997, Vol. 80(1)

Journal articles
Open Access
Capital effectiveness of the paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)

Capital effectiveness of the paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)

Journal articles
Open Access
A financial analysis of north american pulp, paper and packaging firms, TAPPI JOURNAL, September 1999, Vol. 82(9)

A financial analysis of north american pulp, paper and packaging firms, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Magazine articles
Open Access
Boiler retrofit improves efficiency and increases biomass firing rates, TAPPI Journal March 2021

ABSTRACT: Domtar’s fluff pulp mill in Plymouth, NC, USA, operates two biomass/hog fuel fired boilers (HFBs). For energy consolidation and reliability improvement, Domtar wanted to decommission the No. 1 HFB and refurbish/retrofit the No. 2 HFB. The No. 2 HFB was designed to burn pulverized coal and/or biomass on a traveling grate. The steaming capacity was 500,000 lb/h from coal and 400,000 lb/h from biomass. However, it had never sustained this design biomass steaming rate. As the sole power boiler, the No. 2 HFB would need to sustain 400,000 lb/h of biomass steam during peak loads. An extensive evaluation by a combustion and boiler technologies supplier was undertaken. The evaluation involved field testing, analysis, and computational fluid dynamics (CFD) modeling, and it identified several bottle-necks and deficiencies to achieving the No. 2 HFB’s biomass steam goal. These bottlenecks included an inadequate combustion system; insufficient heat capture; excessive combustion air temperature; inadequate sweetwater con-denser (SWC) capacity; and limited induced draft fan capacity.To address the identified deficiencies, various upgrades were engineered and implemented. These upgrades included modern pneumatic fuel distributors; a modern sidewall, interlaced overfire air (OFA) system; a new, larger economizer; modified feedwater piping to increase SWC capacity; replacement of the scrubber with a dry electrostatic precipitator; and upgraded boiler controls.With the deployment of these upgrades, the No. 2 HFB achieved the targeted biomass steaming rate of 400,000 lb/h, along with lowered stack gas and combustion air temperatures. All mandated emissions limit tests at 500,000 lb/h of steam with 400,000 lb/h of biomass steam were passed, and Domtar reports a 10% reduction in fuel firing rates, which represents significant fuel savings. In addition, the mill was able to decommission the No. 1 HFB, which has substantially lowered operating and maintenance costs.

Journal articles
Magazine articles
Open Access
Tetraethyl orthosilicate-containing dispersion coating — water vapor and liquid water barrier properties, TAPPI Journal September 2021

ABSTRACT: An aqueous styrene-butadiene latex dispersion coating containing in-situ processed tetraethyl orthosilicate (TEOS) applied on paperboard demonstrated improved water barrier performance. Coatings containing TEOS equivalent to 0.8% silicon dioxide (SiO2; dry basis) exhibited water vapor performance of < 25 g/m2/day (23°C, 50% relative humidity [RH]) and liquid water barrier performance Cobb 1800 s of < 6 g/m2, when applied as a single-layer 18 g/m2 coating. Cobb 1800 s barrier performance was still good (< 11 g/m2) at coat weights of 7•10 g/m2. The use of filler materials such as kaolin improved the vapor barrier properties of the coating, but this was not critical to the liquid water barrier properties.

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