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Conference papers
Improving Heat Transfer to Recovery Boiler Superheaters Usin
Improving Heat Transfer to Recovery Boiler Superheaters Using Optimization and Computational Fluid Dynamics, 2015 PEERS Conference
Conference papers
Recent Dam Removal Experience Glatfelter Paper Company Sprin
Recent Dam Removal Experience Glatfelter Paper Company Spring Grove, PA, 2015 PEERS Conference
Conference papers
The Use of Non-Detonating Carbon Dioxide Systems as a Means
The Use of Non-Detonating Carbon Dioxide Systems as a Means to Control Lime Kiln Rings, 2015 PEERS Conference
Journal articles
Guest Editorial: Developing a viable forest biorefinery stra
Guest Editorial: Developing a viable forest biorefinery strategy, TAPPI JOURNAL September 2015
Journal articles
Case studies on sugar production from underutilized woody b
Case studies on sugar production from underutilized woody biomass using sulfite chemistry, TAPPI JOURNAL September 2015
Journal articles
Reconciling material balances with laboratory test results:
Reconciling material balances with laboratory test results: The case of the inorganic-to-organic ratio in black liquor, TAPPI JOURNAL September 2015
Journal articles
Magazine articles
Sheet structure Process effect on tissue Properties, Tissue3
Sheet structure Process effect on tissue Properties, Tissue360º Spring/Summer 2015
Books
Packaging and Transportation Forensics
Packaging and Transportation Forensics: Reducing Risk and Liability
Journal articles
Managing total reduced sulfur emissions at a Canadian kraft
Managing total reduced sulfur emissions at a Canadian kraft pulp mill, TAPPI JOURNAL April 2016
Journal articles
Magazine articles
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.