Engineering Commons^™

Characterization Of Hydroprocessed Fast Pyrolysis Oil Fractions, Mariefel V. Olarte, Asanga B. Padmaperuma

Pyroliq 2019: Pyrolysis and Liquefaction of Biomass and Wastes

Production of renewable fuel from biomass has both environmental and national security implications. Considering that liquid transportation fuels massively affects the way we live, technology to produce fuels need to be both technologically-appropriate and economical. Fast pyrolysis remains as one of the most promising thermochemical processing technologies for converting solid biomass into a liquid that can be further upgraded into hydrocarbon fuels. The presence of various types of oxygen-containing functional groups confer pyrolysis oils with unwanted fuel properties such as acidity and low heating value. In order to remove these oxygen functionalities, catalytic hydrodeoxygenation or hydroprocessed is needed. This process …

Electrochemical Upgrading Of Bio-Oil: A Proof-Of-Principle Investigation, Mehmet Pala, Kun Guo, Wolter Prins, Frederik Ronsse, Korneel Rabaey, Antonin Prévoteau

Pyroliq 2019: Pyrolysis and Liquefaction of Biomass and Wastes

Fast pyrolysis is an advanced thermochemical conversion technology developed to produce bio-oil from biomass. With lignocellulosic biomass, high product yields (65-75 wt.%) can be attained. Yet, certain unfavorable characteristics of bio-oil impede its utilization prospects. High water content, high oxygen content, together with instability and acidity are the recognized adverse features of bio-oil. Tackling these issues is possible by reducing the oxygen content and/or steering the oxygen functionality of bio-oils.

Electrochemical hydrogenation (ECH) is a recently proposed approach targeting the reduction of the reactive compounds in bio-oil (aldehydes, ketones etc.) to their corresponding alcohols, diols [1]. In this attractive approach, …

Ablative Fast Pyrolysis Of Biomass: A New Demonstration Project In California, Usa, Dietrich Meier, Christoph Eusterbrock, Brian Gannon

Pyroliq 2019: Pyrolysis and Liquefaction of Biomass and Wastes

California is the fifth largest economy in the world and has about 40 million inhabitants. The California federal government has decided to stick to the Paris climate change agreement by 2030. For many years, California has been feeling the effects of global warming caused by the largest tree extinction in modern history, a five-year dry spell and resulting bark beetle plague, and severe forest fires coupled with heavy winds, heavy rains, and rising sea levels. California is therefore promoting the use of biogenic fuels in the transport sector. In spring 2017, there was a grant funding opportunity from the California …

Investigation Of Innovative And Conventional Pyrolysis Of Ligneous And Herbaceous Biomasses For Biochar Production, Marina Morando, Silvia Fiore, Cedric Briens, Franco Berruti

Biochar: Production, Characterization and Applications

Pyrolysis is a thermochemical process involving the thermolysis of carbon-based materials in absence of an oxidizing agent. Adjusting the operating conditions, in order to maximize the gaseous, liquid or solid products, may optimize pyrolysis process. This work investigates the performances of three laboratory-scale reactors on the grounds of the quantity and quality of the biochar obtained from different biomasses. Three types of biomass were fed to each reactor: two ligneous (rubberwood and eucalyptus) and one herbaceous (Phragmites australis). A novel reactor developed at ICFAR, the Jiggled Bed Reactor (JBR) was employed in slow pyrolysis mode.

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Characteristic Studies On The Waste Biomass-Based Biochars Produced By Fast Pyrolysis, Ramin Azargohar, Sonil Nanda, Janusz A. Kozinski, Ajay K. Dalai, Ronny Sutarto

Biochar: Production, Characterization and Applications

Biochar, as carbonaceous product obtained from pyrolysis of biomass, has many applications in diverse areas due to its versatile physicochemical properties. Non-food biomass has a great potential to produce biochars. In the present study, pinewood sawdust (forest residue), wheat straw and flax straw (agricultural residues), and poultry litter (livestock manure) were used as precursors for pyrolysis. Focus of this study was on the effects of fast pyrolysis temperature (400, 475, and 550 ^oC) on the characteristics of biochars produced by means of a mobile pyrolysis unit. Different characterization techniques are used to study the physical, chemical, and structural characteristics …

Life Cycle Assessment Of Biochar Production From Southern Pine, Sudhagar Mani, Yu Qiu

Biochar: Production, Characterization and Applications

Biochar, a major co-product from the pyrolysis of lignocellulosic biomass is rich in carbon and is often used as a soil amendment to promote crop production and as a soil carbon sequestration medium to maintain long-term soil health of marginal lands. Pyrolysis is the thermal decomposition of biomass in the absence of oxygen to primarily produce bio-oil with biochar being a co-product. Biochar is also primarily produced from wood logs using conventional carbonization methods (eg. Missouri kilns). For sustainable production of biochar, the most sustainable production route is important for large-scale production of biochar for soil carbon sequestration applications. The …

Development Of A Mobile 100 Kg/H Plant For Pyrolysis Using A Mechanically Fluidized Reactor, Dhiraj Kankariya, Stefano Tacchino, Dominic Pjontek, Franco Berruti, Cedric Briens

5th International Congress on Green Process Engineering (GPE 2016)

Current pyrolysis processes perform the thermal decomposition of biomass into a liquid bio-oil, bio-char and non-condensable gases, at around 500 °C, without the addition of oxygen gas. The bio-oil is a complex mixture of many components that is used either as a substitute for fuel oil or for applications such as liquid smoke and bio-phenol resins that do not require pure chemicals.

The large-scale mechanical fluidized reactor (MFR) is a new technology for the pyrolysis of biomass developed by ICFAR, which does not require a sand bed and, thus, provides an undiluted solid char residue, which is essential to realize …

Fundamental Study And Applications To Biomass Pyrolysis Of The Mechanically Fluidized Reactor, Valentina Lago, Franco Berruti, Cedric Briens

5th International Congress on Green Process Engineering (GPE 2016)

Lignin has great potential for the production of aromatics currently derived from petroleum, since it is the most abundant source of aromatics in nature. At present, Kraft lignin is used as fuel within the pulping process but, alternatively, it could be converted to high-value chemicals using thermochemical processes such as pyrolysis. Kraft lignin, however, is a very cohesive and thermally sensitive powder with foaming and agglomerating tendency under reaction conditions. Consequently, a novel reactor design, designated as Mechanically Fluidized Reactor (MFR) has been developed to successfully process Kraft lignin.

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