HOME

By


Welcome to the BioRefineries Blog
Bioeconomy / Circular economy 
Renewable fuels, chemicals and materials
Sustainability / Carbon negative / Climate positive
Innovation 


BIOREFINERY PLATFORMS   











Popular Posts

Biofuels from algae

By
Image
In my opinion, the production of biofuels and biobased chemicals from algae is one of the most fascinating topics in the sector of the biorefineries and it will be one of the niches of opportunity with highest potential in the medium and the long terms. This post pretend to be a very basic approach to the topic Algae-to-Biofuels through three general key points. Algae 1,2,3,4,5 Algae include a wide variety of photosynthetic organisms capable of transforming light, water and specific nutrients into products that can be used with commercial and industrial purposes. We can say that algae are sunlight-driven factories with potential to convert CO 2 into biofuels, high-value biochemical, food and feed. There are four algae cultivation technologies currently in use for commercial algae cultivation and proposed for algal biofuel production: extensive or open ponds, intensive or raceway ponds, closed photobioreactors in many designs and closed fermenter systems. Algal biof
Read more

Hidrotratamiento (HVO) – Conceptos, materias primas y especificaciones

By
Image
English version Sección: BIOCOMBUSTIBLES AVANZADOS Serie: HVO - Hidrotratamiento (HVO) – Conceptos, materias primas y especificaciones - Hidrotratamiento(HVO) – Ventajas sobre el biodiesel convencional y propiedades - Biorrefinerías de Aceites Vegetales Hidrotatados (HVO) – El auge del diésel renovable - Entradas: HVO                El acrónimo HVO significa en inglés “ Hydrotreated Vegetable Oils ” (“Aceites Vegetales Hidrotratados”) o ” Hydrogenated Vegetable Oils ” (“Aceites Vegetales Hidrogenados”). Clave del proceso: Tratamiento con hidrógeno. En el proceso de producción de HVO, el hidrógeno se usa para eliminar el oxígeno de los triglicéridos produciendo una mezcla de parafinas lineales, CO 2 y agua. Posteriormente, el producto de la primera etapa se isomeriza, siempre en presencia de hidrógeno, para ramificar las cadenas lineales con el propósito de mejorar las propiedades de flujo en frío de los productos finales. Por tanto, los HVO son
Read more

Biorefinery platforms – Sugars

By
Image
Versión en Español BIOREFINERY PLATFORMS Concept - The sugar platform is defined as any combination of C5 (5 carbon atoms; xylose, pentose and ribose are the most common pentose sugars), C6 (6 carbon atoms; glucose, fructose and galactose are the most common hexose sugars) and/or C12 sugars (molecules containing two hexose sugar units) that exists within a pathway from biomass feedstock towards final biobased products. - These simple sugars are reactive molecules that can be converted biologically or chemically into fuels, chemicals, materials. food and animal feed. - Larger molecules such as oligosaccharides and polysaccharides are not included within the sugar platform. - The traditional processes are based on utilizing sucrose (composed of glucose and fructose) derived from sugar crops (sugar beet or sugar cane) or glucose obtained after hydrolysis of starch (founded in wheat, corn barley, rye, triticale…). - In advanced biorefineries, utilizing lignocellulosic biomass as feedst
Read more

Levulinic acid biorefineries

By
Image
Publication date: 16/11/2015 Last update: 20/02/2016 Description 1,2 Levulinic acid (also known as 4-oxopentanoic acid or γ-ketovaleric acid) is an organic compound with chemical formula C 5 H 8 O 3 . It is a white crystalline solid soluble in water and polar organic solvents. It contains ketone and a carboxylic group whose presence results in interesting reactivity patterns. It is one of the more recognized Biobased Chemical Building Blocks , a starting material for a wide number of compounds (see Applications below). In fact, it was recognized by the US DoE as one of the top biobased platform chemicals of the future and it can successfully address many performance-related issues attributed to petroleum-based chemicals and materials. Process technologies 1,3,4,5 The controlled degradation of C6-sugars by acids is the most widely used approach to prepare levulinic acid from lignocellulosic biomass. Other methods have also been studied, for instance, the hydroly
Read more

Biorrefinerías de FDCA (ácido 2,5-furanodicarboxílico)

By
Image
Fecha de publicación: 15/06/2017 Última actualización: 24/01/2018 Introducción 1,2,3,4,5 El ácido 2,5-furanodicarboxílico (FDCA, por sus siglas en inglés), también conocido como ácido ácido piromúcico, es un compuesto orgánico que fue detectado por primera vez en la orina humana. De hecho, una persona sana genera 3-5 mg/día. Se trata de un compuesto muy estable. Algunas de sus propiedades físicas, tales como insolubilidad en la mayor parte de disolventes y un punto de fusión muy alto (funde a 342ºC), parecen indicar la existencia de enlaces de hidrógeno intermoleculares. El FDCA posee dos grupos carboxilo, lo que le convierte en un monómero adecuado para reacciones de policondensación con dioles o diaminas. Es uno de los 12 principales compuestos químicos de alta valor añadido listados por el el DoE de los Estados Unidos en 2004. Esta lista se actualizó en 2010 y el FDCA fue incluido de nuevo, pero esta vez en un grupo junto con el furfural y el 5-hidroximetilfurfu
Read more