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Journal articles
Mimosa (Albizia Julibrissin) Pulping and Papermaking Properties, TAPPI JOURNAL, April 2007
Mimosa (Albizia Julibrissin) Pulping and Papermaking Properties, TAPPI JOURNAL, April 2007
Journal articles
Effects of CNCG burning on lime composition and SO2 emissions from a lime kiln, Solutions! & TAPPI JOURNAL, July 2004, Vol. 3(7) (197KB)
Effects of CNCG burning on lime composition and SO2 emissions from a lime kiln, Solutions! & TAPPI JOURNAL, July 2004, Vol. 3(7) (197KB)
Magazine articles
Evaluating treatment processes to reduce metals concentrations in pulp and paper mill wastewaters to extremely low values, TAPPI JOURNAL, April 2001, Vol. 84(4)
Evaluating treatment processes to reduce metals concentrations in pulp and paper mill wastewaters to extremely low values, TAPPI JOURNAL, April 2001, Vol. 84(4)
Journal articles
Principles of the quantification of dissolved organic material in tmp process waters using a 5-component system, TAPPI JOURNAL, April 2001, Vol. 84(4)
Principles of the quantification of dissolved organic material in tmp process waters using a 5-component system, TAPPI JOURNAL, April 2001, Vol. 84(4)
Journal articles
NSSC process optimization: pulping, pulps and spent liquors, TAPPI JOURNAL, April 2001, Vol. 84(4)
NSSC process optimization: pulping, pulps and spent liquors, TAPPI JOURNAL, April 2001, Vol. 84(4)
Journal articles
Operating experiences with the lo-solidsâ?¢ pulping process at willamette industries' johnsonburg mill, TAPPI JOURNAL, April 2001, Vol. 84(4)
Operating experiences with the lo-solids™ pulping process at willamette industries' johnsonburg mill, TAPPI JOURNAL, April 2001, Vol. 84(4)
Journal articles
Oxygen delignification as a pretreatment for acetosolv pulps bleaching, TAPPI JOURNAL, April 2002, Vol. 1(2) (221KB)
Oxygen delignification as a pretreatment for acetosolv pulps bleaching, TAPPI JOURNAL, April 2002, Vol. 1(2) (221KB)
Journal articles
Sulfuric acid emissions from combination boilers, Solutions! & TAPPI JOURNAL, May 2004, Vol. 3(5) (128KB)
Sulfuric acid emissions from combination boilers, Solutions! & TAPPI JOURNAL, May 2004, Vol. 3(5) (128KB)
Journal articles
Magazine articles
Exergy and sensibility analysis of each individual effect in a kraft multiple effect evaporator, TAPPI Journal October 2019
ABSTRACT: The multiple effect evaporator (MEE) is an energy intensive step in the kraft pulping process. The exergetic analysis can be useful for locating irreversibilities in the process and pointing out which equipment is less efficient, and it could also be the object of optimization studies. In the present work, each evaporator of a real kraft system has been individually described using mass balance and thermodynamics principles (the first and the second laws). Real data from a kraft MEE were collected from a Brazilian plant and were used for the estimation of heat transfer coefficients in a nonlinear optimization problem, as well as for the validation of the model. An exergetic analysis was made for each effect individually, which resulted in effects 1A and 1B being the least efficient, and therefore having the greatest potential for improvement. A sensibility analysis was also performed, showing that steam temperature and liquor input flow rate are sensible parameters.
Journal articles
Magazine articles
Modeling of the energy of a smelt-water explosion in the recovery boiler dissolving tank, TAPPI Journal August 2020
ABSTRACT: The explosion energy generated as molten smelt droplets interact with water was evaluated as a function of smelt distribution, water temperature, and smelt temperature using a thermodynamic model. The results show that increasing smelt-to-water volume ratio and water temperature significantly increases the explosion energy, converting a larger proportion of the thermal energy of smelt into mechanical work. To reduce the chance of violent smelt-water explosions, it is important to: i) optimize the shatter jet design and operation to uniformly distribute the smelt over a large area in the dissolving tank; ii) avoid high green liquor temperature and ensure adequate liquor mixing; and iii) avoid upsets that may cause heavy smelt runoff or jellyroll smelt.