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Biorefinery models - Lignocellulosic biorefinery

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Publication date: 25/04/2016 Last update: 25/04/2016 ABOUT THE SERIES OF POSTS “BIOREFINERY MODELS” This post belongs to a series called “ Biorefinery Models ”. This series is devoted to briefly describe the models or concepts of advanced biorefineries which have emerged in the last few years and that are rising currently. These models are simplified representations which enable us to understand in a simple way the structure and characteristics of a general biorefinery type. Some of these models refer to the type of feedstock while other focus on the technologies involved. A biorefinery may resemble these models or be the result of variations and combinations of them. It should be noted that although these paradigms are very useful and instructive, they show limitations in describing and classifying complex systems with high level of integration. In order to define and describe a specific complex case, the blog recommends use the classification proposed by IEA Bioenerg...
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Biobased acrylic acid

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Versión en Español Type of post: Fact sheet. Series: Biobased chemicals – Organic acids. Publication date: 05/05/2021. Last update: 05/05/2021. Description - Organic acid with 3 carbon atoms. - It is a clear, colourless, corrosive liquid with a characteristic acrid or tart smell. - Other names: prop-2-enoic acid. Applications - Formation of homopolymers or copolymers which are used in the manufacture of various adhesives, coatings, diapers, detergents, paints, plastics and textiles. The main use of crude acrylic acid is the generation of acrylate esters, followed by the production of polyacrylic acid, used mostly in superabsorbent polymers. - Chemical intermediate in multiple industrial processes. Conventional petrochemical route - Cracking of fossil naphtha to produce propylene / Oxidation of propylene. Main biobased routes - [3-HPA via] Fermentation of sugars to produce 3-hydroxypropionic acid (3-HPA) / Dehydration of 3-HPA. - [Biobased naphtha via] Cracking of biobased naphth...
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Glucaric acid biorefineries

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Publication date: 14/12/2015 Last update: 24/05/2017 Description 1,2,3,4 D-Glucaric acid, also called saccharic acid, is a chemical compound with formula C 6 H 10 O 8 and member of a large family of molecules known as oxidized sugars. It is a naturally occurring aldaric acid, typically found in small amounts in a variety of fruits and vegetables. It is a highly functionalized compound with four chiral carbons and a plethora of reaction pathways. Its commercial potential was unveiled in the report “Top Value Added Chemicals from Biomass” from the Department of Energy of USA which described its use as a building block for a number of polymers, including new nylons and hyperbranched polyesters. Process technologies 1,3,4,5,6,7,8 The synthetic preparation of D-glucaric acid dates back to a report of Sohst and Tollens (1888) who carried out the nitric acid oxidation of D-glucose to D-glucaric acid. Current methods for its production are based on this process and in...
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Modelos de biorrefinería - La biorrefinería lignocelulósica

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Fecha de publicación: 25/04/2016 Última actualización: 25/04/2016 SOBRE LA SERIE DE ENTRADAS “MODELOS DE BIORREFINERÍA” Esta entrada pertenece a una serie llamada “ Modelos de biorrefinería ”. Dicha serie está dedicada a describir brevemente los modelos o conceptos de biorrefinerías avanzadas que han surgido en los últimos años o que están apareciendo actualmente. Estos modelos son representaciones simplificadas que permiten comprender de una manera sencilla la estructura y las características de un tipo general de biorrefinería. Algunos de estos modelos se refieren al tipo de materia prima mientras que otros se centran en las tecnologías involucradas. Una biorrefinería puede asimilarse a un modelo o ser el resultado de variaciones y combinaciones de varios de ellos. Se debe tener en cuenta que, aunque son muy útiles e instructivos, estos paradigmas muestran limitaciones en la descripción y clasificación de sistemas complejos con gran nivel de integración. Para definir...
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Haldor Topsoe to build a demo plant to produce methanol from biogas and green electricity

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Type of post: NEWS. Haldor Topsoe will build a methanol plant to scale-up its electrified and extremely compact eSMR Methanol™ technology for production of sustainable methanol from biogas. It is expected to demonstrate that the process can compete with traditional methanol production based on fossil fuels in terms of cost. Press release: “ Topsoe to build demonstration plant to produce cost-competitive CO2-neutral methanol from biogas and green electricity ”, 16/7/2019. Figure 1. Comparison between a traditional reactor and the electrified compact reactor of Haldor Topsoe Location Aarhus University’s research facility in Foulum (Denmark) Feedstocks The technology exploits the full carbon potential of biogas by utilizing even the 40% CO 2 content which is routinely separated and vented today. Green electricity from wind turbines or solar panels instead of natural gas. Product and production capacity 10 kg/h of meth...
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