Search results for "biorefining"
showing 6 items of 16 documents
An Integrated Approach for the Valorization of Cheese Whey
2021
Taking into account the large amount of whey that is produced during the cheese production process and the constant demand by society for more sustainable processes, in accordance with Sustainable Development Goals (SDGs) and the circular economy concept, it is necessary to adapt two-unit operations into a single process, allowing us to not only valorize a part of the whey but the whole process, which is known as bioprocess integration. In this sense, the adaptation of different processes, for example, physicochemical (micro, ultra and nanofiltration) and fermentation, that are commonly used to obtain proteins, lactose and other compounds with different activities (antioxidant, antifungal, …
Diffusion of forest biorefineries in Scandinavia and North America
2012
Abstract Biomass-based energy has become a major focus of attention from a variety of directions due to the global challenges of meeting our energy needs. Bioenergy and bio-products are also currently being explored intensively in the forest cluster, as many elements that have in the past guaranteed success have largely disappeared. As the bioenergy and biorefining economies are evolving, there is a need for realistic estimates regarding the factors which affect the diffusion of forest biorefineries. This paper outlines global and national drivers for forest biorefineries in Scandinavia and North America. It explores the financial, political, technological, and ecological and raw-material r…
Horizon scanning the European bio‐based economy: a novel approach to the identification of barriers and key policy interventions from stakeholders in…
2016
There is international recognition that developing a climate-smart bioeconomy is essential to the continuation of economic development, reduction of greenhouse gas emissions, and adaptation to climatic change; Bio-based products have an important role in making this transition happen. Supporting policy interventions have been put forward at European and national levels to support innovation and development of bio-based products and services. This study asks whether suggested policy interventions reflect the needs of stakeholders and examines how these needs vary between European regions. This consultation was performed through an online survey of 447 experts actively involved in bio-based r…
Pulp Mills and Wood-Based Biorefineries
2015
The pulp and paper industry is facing major challenges and will need to find more versatile products to remain competitive. Large amounts of both solid and liquid residues are formed in the production line from tree to paper. The utilization of various organics for other purposes other than fuel depends on conversion technologies and production scale as well as energy and pulp prices. With respect to this, chemical pulping processes, practically as the first industrial biorefineries in the world, still offer attractive possibilities in the form of new by-products. In this chapter, general aspects together with some selected examples on the integrated production of chemical wood-based fiber,…
Advanced biorefinery concepts related to non-wood feedstocks
2018
Agricultural residues, such as wheat straw (Triticum aestivum), okra stalk (Abelmoschus esculentus), and giant miscanthus (Miscanthus × giganteus, a hybrid of M. sinensis and M. sacchariflorus) were investigated to assess their possible consumption for integrated lignocellulosic biorefining. The efficient fractionation and recovery of all important chemical components (cellulose, hemicelluloses, and lignin) of such feedstocks are a prerequisite for realistic biorefinery concepts. Water is one of the most eco-friendly solvents with the highest potential for industrial use, and it is also suitable for full-scale biorefinery purposes. For example, under pressure at elevated temperatures over 1…
Chemical Pretreatments of Wood Chips Prior to Alkaline Pulping - A Review of Pretreatment Alternatives, Chemical Aspects of the Resulting Liquors, an…
2015
The chemical industry is being forced to evaluate new strategies for more effective utilization of renewable feedstocks to diminish the use of fossil resources. In this literature review, the integration of both acidic and alkaline pretreatment phases of hardwood and softwood chips with chemical pulping is discussed. Depending on the pretreatment conditions, high-volume sulfur-free fractions with varying chemical compositions can be produced. In case of acidic pretreatments, the major products include carbohydrates (mono-, oligo-, and polysaccharides), whereas under alkaline (i.e., aqueous NaOH) pretreatment conditions, the sulfur-free fractions of aliphatic carboxylic acids, lignin, and ex…