Dynamic optimization based on simulation is extremely time consuming. The quest for the optimal solution requires a vast number of iterations. Since the simulation is performed at each iteration step, the decrement of the simulation time becomes crucial. This paper presents the development of simulation models for dynamic optimization. The area of interest is paper and pulp industry. The keywor...

On April 18 2000, one of the largest takeovers in the pulp and paper industry took place. Through a dual cash-share exchange transaction, Donohue Inc. and Abitibi-Consolidated Inc. merged to form the largest newsprint producer in the world. The purpose of this clinical study is to analyse the incentives of all key stakeholders who were involved in the transaction: stockholders, directors, execu...

Unbleached pulp from the pulp and paper industry was used as a cellulosic material source to produce bioethanol in a separate hydrolysis and fermentation process. In the batch enzymatic saccharification, three cellulolytic enzymes and different initial carbohydrate (CH) contents were tested. Cellic CTec2 was shown to be the most efficient enzyme with the lowest dosage used: 35 FPU gCH . Sugar p...

he Technical Association of the Pulp and Paper Industry (TAPPI) sponsored a Paper InT dustry Research Needs workshop at the State University of New York, College of Environmental Science and Forestry in Syracuse, New York, May 26-28,1992, The Pulping and Bleaching Processes Panel identified the major need in kraft black liquor recovery, namely, an affordable, incremental, chemical recovery capa...

This review describes medium and high molecular weight organic material found in wastewaters from pulp and paper industry. The aim is to review the versatile pollutants and the analysis methods for their determination. Among other pollutants, biocides, extractives, and lignin-derived compounds are major contributors to harmful effects, such as toxicity, of industrial wastewaters. Toxicity of wa...

Recently, xylanases have expanded their use in many processing industries, such as pulp and paper, food and textile. The production of xylanase by the fungus Penicillium sclerotiorum under submerse cultivation was investigated. Oat spelts xylan and wheat bran were the best inducers of xylanase activity. Optimal xylanase production was obtained in liquid Vogel medium, pH 6.5, at 30oC, under stat...

Cellulose nanofibers can be produced using a combination of TEMPO, sodium bromide (NaBr) and sodium hypochlorite, and mechanical dispersion. Recently, this process has been the subject of intensive investigation. However, studies on the aspects of mechanical treatment of this process remain marginal. The main objective of this study is to evaluate the high shear dispersion parameters (e.g., con...

Using biocomposites containing wheat straw (WS) and synthetic polymers like polyethylene (PE) has gained tremendous popularity, but its application in the packaging industry is not substantial. Due to the prevalence of raw WS color which manifests itself in the WS/LDPE biocomposite, the present investigation is dedicated to fabricate a bleached WS/LDPE composite. Thus, raw WS and the pulp of WS...

We present an ensemble of classifiers that can be used to predict quality characteristics of an important process in pulp and paper industry: the tissue softness estimation. This classification problem is a difficult one since, with respect to our data set, the accuracy of all the well-known classifiers is below 68%. Contrary to that, the bagging random trees ensemble model is able to increase ...

Elasticity of interfuel substitution between renewable and non-renewable energy is a key to establish effective climate change policy.This is the first study estimating the elasticity of substitution between different fossil fuels and renewable resources. We use twelve manufacturing industry level data for the OECD countries over 1995 to 2009. We find complementally relationship from non-renewa...