Luana Dessbesell

Aalto University · Department of Bioproducts and Biosystems

Technological development has enabled the production of new value-added products from lignocellulosic residues, such as lignin. This has allowed the forest industry to diversify its product portfolio and maximize the economic returns from feedstock, while simultaneously working towards sustainable alternatives to petroleum-based products. Although...

The impacts of climate change are inevitable and driven by increased levels of greenhouse gases (GHG) in the atmosphere, requiring mitigation and re-adaptation measures. In this context, this article critically analyzes the influence of drying technology type, forest biomass, and GHG emissions resulting from the energy required for drying agricultu...

The back cover image is based on the Review Article Lignin Beyond Energy ‐ Has Lignin's Time Finally Come? by Chunbao Charles Xu et al., https://doi.org/10.1002/bbb.2172.

According to an old proverb, 'you can make anything out of lignin, except money'. The complexity of lignin's structure and many inferior characteristics of lignin, such as its insolubility in organic solvent and poor reactivity related to it large molecular weight, have posed significant challenges to lignin valorization. Driven mainly by the comme...

This paper presents critical information about variable cost, capacity, and supply chain design for the renewable production of phenols and polyols from kraft lignin (KL) in Canada. The technology proposed here is a low-pressure/low-temperature approach that results in DKL (depolymerized kraft lignin), a bioproduct with the economic and technical c...

Lignin is an abundant renewable feedstock for bioenergy, chemicals and materials production. Numerous review papers have addressed lignin research; though, a limited focus has been given to lignin commercial initiatives and its market applications potential. However, this is an area of great importance, given the growth of commercial lignin product...

APROVEITAMENTO ENERGÉTICO DE RESÍDUOS FLORESTAIS COMO ALTERNATIVA AO CONSUMO DE LENHA NA FUMICULTURA DO SUL DO BRASIL CARLINE ANDRÉA WELTER1, JORGE ANTONIO DE FARIAS2, LUANA DESSBESELL3 RAFAEL DA SILVA RECH4, FÁBIO EDUARDO ROESCH5 1 Doutoranda do PPG em Engenharia Florestal – UFSM, Av. Roraima nº 1000, prédio 44B, bairro Camobi, CEP 97105-900, Sant...

The cover image is based on the Review Article Production of 2,5‐Furandicarboxylic Acid (FDCA) from Starch, Glucose or High Fructose Corn Syrup: Techno‐economic Analysis by Chunbao (Charles) Xu et al., DOI: 10.1002/bbb.2014. The cover image is based on the Review Article Production of 2,5‐Furandicarboxylic Acid (FDCA) from Starch, Glucose or High F...

This paper presents a techno‐economic analysis of a low‐cost and high‐efficiency technology for the production of 2,5‐furandicarboxylic acid (FDCA) from starch, glucose, or high‐fructose corn syrup (HFCS). With the design presented here, it is viable to convert starch to glucose through enzymatic hydrolysis followed by catalytic dehydration of gluc...

The influence of gangue compositions (mainly composed of SiO2, CaO, MgO and Al2O3) on the reduction kinetics of carbon-bearing iron ore pellets was estimated at 1373–1473 K in N2 atmosphere. The results showed that gangue content and each component distribution affected the pellets reduction process. The reduction rate was found to follow a linear...

This work demonstrated high activity of inexpensive Co‐Mn mixed oxide catalysts for selective oxidation of 5‐hydroxymethylfurfural (HMF) into 2, 5‐furandicarboxylic acid (FDCA) ‐ a sustainable alternative to terephthalate. The Co‐Mn mixed oxide catalysts with different Co/Mn mole ratios were prepared simply by solid‐state grinding; a low‐cost and g...

Economic and environmental aspects of residues energetic use in Brazil are of extreme importance. In one hand, the country is today a recognized bioenergy producer in a world scenario; on the other hand, the country is still struggling to provide a reliable renewable energy supply to rural communities. Local demand could be supplied through small i...

In Canada, there is a kraft lignin (KL) surplus of ~1.06 millions (M) t·year-1 (after ensuring pulp mills' recovery boiler demand). This KL supply can create a US$1.5 billion lignin-based bio-products industry. Lower molecular weights and higher reactivity de-polymerized kraft lignin is a promising bio-replacement for petroleum-based chemicals such...

Background: Spectroradiometric studies involving the collection of vegetative material in the field and subsequent radiometric measurements in the laboratory are susceptible to limitations due to the loss of information related to the temporal lapse between collection and analysis. Objective: Thus, the objective of this study is to identify which s...

This paper presents a techno-economic and risk analysis of a kraft lignin (KL) biore nery (3000 tonne of KL⋅year-1 capacity), where KL is depolymerized to produce depolymerized kraft lignin (DKL) as a bio-substitute to polyol and phenol for the production of bio-based polymers (polyurethane and phenolic resins). Three scenarios were examined: (i) D...

In this study bio-based bio-phenol-formaldehyde (BPF) resoles were prepared using hydrolytically depolymerized Kraft lignin (DKL) as bio-phenol to partially substitute phenol. The effects of phenol substitution ratio, weight-average molecular weight (M w) of DKL and formaldehyde-to-phenol (F/P) ratio were also investigated to find the optimum curin...

Wood is the primary energy source for grains and Tobacco drying in the Rio Pardo Watershed (RPW). The amount of firewood produced in the RPW is not enough to supply the demand. Recently, an automatized supply system was introduced in the region enabling the use of sawdust and pellets. In this context, this study aims to compare firewood, sawdust an...

In the search for renewable alternatives to petroleum-derived products to reduce petroleum dependence and industrial sector footprint, bio-based chemicals and materials have been developed and improved in laboratory scale for many years. Finally, the industry, driven by the forest sector, have devoted efforts to introduce bio-chemicals and bio-mate...

The Canadian forest industry is seeking to diversify its portfolio to remain competitive, as bioenergy alone is not enough to transform the forest industry. Higher-value products such as bio-based chemicals and materials can augment lower-value bioenergy. Besides diversifying the portfolio, we can replace petroleum-based products, and decrease petr...

An increasing number of papers explore forest biomass SC optimization over the past two years, with the USA and Canada leading the number of publications. The emphasis of previous SC studies has been within the area of energy production, including ethanol, electricity and heat production, with little focus on the production of chemicals and materia...

Estudos da interação da energia eletromagnética com a vegetação tem grande importância, uma vez que fornecem informações sobre a tipologia, a estrutura do dossel, o estado fenológico, as condições de estresse, a falta de nutrientes, entre outros. Visando detectar alterações fisiológicas, através de técnicas de espectrorradiometria, coletou-se ramos...

Estudos da interação da energia eletromagnética com a vegetação tem grande importância, uma vez que fornecem informações sobre a tipologia, a estrutura do dossel, o estado fenológico, as condições de estresse, a falta de nutrientes, entre outros. Visando detectar alterações fisiológicas, através de técnicas de espectrorradiometria, coletou-se ramos...

Concerns and desire to move away from fossil fuels dependence and reduce emissions have encouraged researchers worldwide, especially Canada, to develop technology platforms for novel lignin-based materials and chemicals. Although there have been significant achievements, there are still challenges for scaling up these technologies. A reliable bioma...

Resumo O objetivo do trabalho foi comparar níveis de reflectância das folhas de Eucalyptus grandis Hill ex Maiden através de medidas espectrais a partir da localização das mesmas em relação à árvore e aos pontos cardeais. O experimento foi conduzido na área experimental pertencente à FEPAGRO, localizada no município de Santa Maria-RS. O trabalho c...

The objective was to compare levels of reflectance of leaves of Eucalyptus grandis Hill ex Maiden using spectral measurements from their location in relation to the tree and the cardinal points. The experiment was carried out in the experimental area belonging to FEPAGRO, located in Santa Maria-RS. The work included the installation of a randomized...

The Remote Sensing has tools to assist the analysis of vegetation, because it interacts with electromagnetic energy thus enabling its spectral characterization. This study evaluates spectral differences of five different species through the mean values of leaf reflectance in the visible and near infrared, in order to know the change in reflectance...