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Effect of high sulfate content on viscosity of recovery boiler molten smelt, TAPPI Journal March 2024
ABSTRACT: A systematic study was conducted to examine the effect of high sulfate content on the freezing temperature of molten smelt and how this may contribute to the formation of viscous jellyroll smelt in recovery boilers. The results show that even for recovery boilers with a smelt reduction as low as 70%, the sulfate content in smelt has no or little effect on smelt freezing temperature, and hence, on molten smelt fluidity. The perceived adverse effect of high sulfate content on smelt fluidity and on jellyroll smelt formation comes from the high sulfate content in deposits that have fallen from the upper furnace. Fallen deposits may or may not form jellyroll smelt, depending on whether or not they can melt and be well-mixed with molten smelt by the time they reach the smelt spouts. It is not the high sulfate content in smelt resulting from the low smelt reduction efficiency that makes molten smelt viscous and forms jellyroll smelt, but rather, it is the incomplete melting of fallen deposits that results in one of the proposed mechanisms for jellyroll smelt formation.
Journal articles
Reappraisal of the role of turpentine vapor in noncondensible gas explosions, TAPPI JOURNAL April 2010
Reappraisal of the role of turpentine vapor in noncondensible gas explosions, TAPPI JOURNAL April 2010
Journal articles
Effects of impregnation time on hardwood kraft pulp characteristics and papermaking potential â?¢ a mill study, TAPPI JOURNAL April 2010
Effects of impregnation time on hardwood kraft pulp characteristics and papermaking potential • a mill study, TAPPI JOURNAL April 2010
Journal articles
Ozone-enhanced bleaching of softwood kraft pulp, TAPPI JOURNAL August 2010
Ozone-enhanced bleaching of softwood kraft pulp, TAPPI JOURNAL August 2010
Journal articles
Optimization of elemental chlorine-free bleaching for a softwood kraft pulp â?¢ part 1: impact of oxidative extraction on chlorine dioxide stoichiometry, TAPPI JOURNAL August 2010
Optimization of elemental chlorine-free bleaching for a softwood kraft pulp • part 1: impact of oxidative extraction on chlorine dioxide stoichiometry, TAPPI JOURNAL August 2010
Journal articles
Online monitoring of inorganic cooking chemicals in white liquor by pulse voltammetry, TAPPI JOURNAL August 2010
Online monitoring of inorganic cooking chemicals in white liquor by pulse voltammetry, TAPPI JOURNAL August 2010
Journal articles
CFD-Based Modeling of Kraft Char Beds â?¢ Part 2: A Study on the Effects of Droplet Size and Bed Shape on Bed Processes, TAPPI JOURNAL February 2010
CFD-Based Modeling of Kraft Char Beds • Part 2: A Study on the Effects of Droplet Size and Bed Shape on Bed Processes, TAPPI JOURNAL February 2010
Journal articles
Study on the Chemical Modification Process of Jute Fiber, TAPPI JOURNAL February 2010
Study on the Chemical Modification Process of Jute Fiber, TAPPI JOURNAL February 2010
Journal articles
Editor's Note: PEERS Offers Industry Perspective, TAPPI JOURNAL October 2010
Editor's Note: PEERS Offers Industry Perspective, TAPPI JOURNAL October 2010
Journal articles
Magazine articles
Laboratory method for determining the source of brightness loss at a southern United States bleached paperboard mill, TAPPI Journal October 2018
Laboratory method for determining the source of brightness loss at a southern United States bleached paperboard mill, TAPPI Journal October 2018