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Levulinic acid biorefineries

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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
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Fotobiorreactores

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El cultivo de microalgas no es algo novedoso, muchos de los métodos y conceptos que se usan hoy en día fueron desarrollados a finales del siglo XIX y principios de la pasada centuria. En décadas posteriores, se han ido refinando por la intervención de varias disciplinas que han trabajado de manera conjunta: biología, ingeniería de procesos, matemáticas y física. En los últimos 30 años, la industria biotecnológica de las microalgas ha crecido y se ha diversificado de manera significativa. Sin embargo, las aplicaciones comerciales existentes, todavía se hallan limitadas a comercios de bajo volumen y gran valor añadido como el de los suplementos alimenticios o el de los extractos (por ejemplo, el beta-caroteno). De acuerdo con un informe de IEA Bioenergy del 2010, la cantidad de biomasa algal producida comercialmente estaba en el entorno de las 9.000 toneladas. 1,2,3,4 Actualmente, el interés creciente que despiertan el empleo de las microalgas en la obtención de biocombustibles y e
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Biobased polyolefins - Biobased Polyethylene (bio-PE)

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Versión en Español Section: BIOBASED PLASTICS Series: Biobased Vinyl Polymers. - Biobased Polyethylene (bio-PE). Biobased Polyethylene (bio-PE) / Green Polyethylene / Renewable Polyethylene - Its biobased carbon content can reach 100%. - Renewable resource . It is produced from renewable biomass feedstocks as sugars or vegetable oils. - It reduces GHG emissions. Each ton produced captures and sequesters CO 2 from the atmosphere. - 100% drop-in . Chemically identical to its petrochemical counterpart. It has the same processing characteristics as fossil PE, therefore, it can be processed in the same equipment. - Non-biodegradable . It cannot be composted or biodegraded. - Thermoplastic . It can be molten and remoulded into the desired shape. - It can be recycled and processed into new bio-PE products using conventional technologies without requiring additional investments. - Building block or monomer: biobased ethylene .
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Venice Biorefinery

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Nombre / Name Venice Biorefinery Empresa / Company eni ( www.eni.com ) Localización / Location Porto Marghera, Venice (Italy) Categoría / Category Comercial / Commercial Estado / Status Operación / Running Plataformas / Platforms Aceites /  Oil Materia prima / Feedstock Aceites vegetales, grasas de origen animal y aceites de cocina usados / Vegetable oils, animal fats and used cooking oils Producto / Product Aceite Vegetal Hidrotratado / Hydrotreated Vegetable Oil (HVO) Puesta en marcha / Start-Up Junio 2014 / June 2014 Figure 1. Venice Biorefinery (extracted from Reference 3) El Proyecto Green Refinery (un programa de innovación de eni) tiene como objetivo transformar refinerías existentes en biorrefinerías mediante el uso de la tecnología Ecofining TM y la refinería de Venecia es el primer eje
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Biofuels from algae

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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
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