Topic 3: Biomass Technologies and Conversion to Intermediate Bioenergy Carriers and Products of the Bioeconomy
(Please refer to https://www.eubce.com/conference-topics.html for a full list of sub-Topics within Topic 3)
Three consecutive oral sessions for Topic 3.7, “Bio-based chemicals and materials”. Starting at 14:00, the first session, 3AO.3, on “New Processes for Bioproducts” addresses new approaches for bio-based chemicals and materials, and new products types; these include a hybrid bio-thermochemical route for the production of bio-isoprene, food packaging LCAs and essential oil and biomass obtained by mechanised harvesting of a West Mediterranean bush species.
The second oral session within Topic 3.7, 3AO.6, commences at 15:10 and is entitled “Biotechnology for Biobased Products and Materials”. These biotechnology presentations focus on production of chemicals and materials, including the influence of feedstocks and processing technologies on valorisation of bio-waste terpenes, high-value compounds production from marine green algae (Tetraselmis Suecica) and heterogeneously catalysed conversion of cellulose to high-added value chemicals.
The final oral session for Topic 3.7, 3AO.9, commences at 16:20 on the subject of “Chemical Pathways to Biobased Products”. This session focusses on chemical strategies for converting biomass to products and includes examples of transformation of monosaccharides to furanic compounds and polymers, platform chemicals – 2,5-furandicarboxylic acid and muconic acid from sugar acids, and added value product from side-streams effluent from large scale black pellet steam explosion treatment.
The other oral session on Monday is from Topic 3.5, “Bio-alcohols from Lignocellulosic Biomass”. The session, 3AO.4, starting at 13:30 is on “Technological Improvements of Advanced Ethanol Production”. This session covers recent trends in bio-alcohol production using new innovative treatments, for example pretreatment of lignocellulosic materials, simultaneous saccharification and fermentation using mixed microbial cultures and hydrolytic enzymes from food waste, each of these amongst the latest advances in this topic.
There are three oral sessions for Topic 3.6, “Biorefineries”, starting at 09:00 with 3BO.3 on “System Assessment in Biorefineries” which addresses techno-economic and life-cycle assessment of biorefineries. Examples are given for optimizing biomass utilisation in iron and steel production, pulsed electric field treatment in combination with hydrothermal liquefaction of microalgae and a review of key elements of biorefineries in Europe.
The second oral session within 3.6, 3BO.7, commences at 14:00 and is entitled “Concepts for Biorefineries”. Here, the focus is on integrated concept developments and includes examples of biofuels from macroalgae, biofuels from seaweed, pulp and paper as well as chemicals and biogas production from food waste, coupling ethanol fermentation, anaerobic digestion and pyrolysis.
The final oral session for Topic 3.6, 3BO.11, commences at 15:10 on the subject of “Bio-based Products from Biorefineries” and includes examples of value-added products from sewage sludge, integrated biodiesel and biopolyols production, catalytic fast pyrolysis of biomass and ensiling seaweed biomass for biorefining.
There are also two visual/poster sessions on Tuesday.
The first, for the “Pyrolysis”, Topic 3.2, and the “Hydrothermal processing”, Topic 3.3, starts at 15:10. This session (3BV.3) on “Processes and Products of Pyrolysis and Hydrothermal Processing” deals with analytical pyrolysis and catalytical upgrade technologies, in addition to biochar and its application as fertilizer or soil conditioner. Also included are molten salt pyrolysis along with coupling of pyrolysis to biological biomass conversion. In addition, the session also includes presentations on the effects of HTL process parameters on process efficiencies and products, process kinetics and modelling for use of many different wet substrates and also includes integration with solar energy.
The second visual/poster session starting at 16:20, is from Topic 3.6, “Biorefineries”. Session 3BV.4 on “Biorefinery Development and Assessment” covers biorefinery process innovations and assessments of batch, continuous, sequential and hybrid processes, and based on a wide range of mainly biomass process residues, including for example wood waste and residual lignin, for a number of bio-based products.
There are four oral sessions for Topic 3 on Wednesday, two each for Topics 3.2 and 3.3. Topic 3.2 on “Pyrolysis” leads the way at 09:00 with session 3CO.3 entitled “Upgrade of Pyrolysis Products” and deals with the recovery of directly usable pyrolysis oil, upgrade of the liquid pyrolysis products by fractional condensation and esterification of pyrolysis oils with higher alcohols. The session includes a report on industrial application trials with residue-derived pyrolysis oil.
The second oral session for Topic 3.2 is 3CO.7 entitled “Pyrolysis Processes and Analytics” and which starts at 14:00. This session introduces advanced analytical technologies including Pyrolysis GC-MS for fast pyrolysis, thermo-catalytic reforming of sewage sludge and stabilization pretreatments for lignin in selective fast pyrolysis.
The two oral sessions for Topic 3.3, “Hydrothermal processing”, commence with 3CO.11 at 15:10 on “Process Development, Modelling and Liquid Product Upgrading”. This session addresses supercritical water gasification of different sources of wet biomass from laboratory-scale to a novel design of a large-scale plant using process models, modelling for cost optimization of HTL by process optimization and denitrogenation of biocrudes.
The second oral session for Topic 3.3 is 3CO.14 entitled “Treatment and Analysis of Hydrothermal Process Streams” and which starts at 16:20. This session covers advanced analysis of hydrothermal processes, including the fate of pharmaceutical compounds from the HTL conversion of biogas residues, the behaviour of black liquor salts and their continuous extraction, and coupling of hydrothermal carbonization of biogas digestate and supercritical water gasification of liquid by-products.
There are also two visual/poster sessions on Wednesday. The first session, 3CV.1 on “Biotechnological Approaches and Conversion Routes to Biobased Materials and Chemicals” is for the “Bio-based chemicals and materials” Topic 3.7 and starts at 09:00. This session covers a wide range of primarily biotechnological conversion routes for biomass to chemicals and materials, for example use of natural fibers to enhance polymeric materials, enhanced separation reactions for maximising carbon and energy efficiency in biofuels and biochemicals production, activated carbons as potential materials for supercapacitors and the role for food waste oils in the circular economy. The session also covers a wide range of chemical approaches for conversion of biomass to chemicals and materials, including biodegradable plastics from food waste, fertilizer from wood ashes, green solvents from MSW, adipic acid, N-hexane from electrolysis of butyric acid and shipping fuels.
The second visual/poster session combines contributions from Topic 3.1 “Production of thermally treated solid fuels”, Topic 3.4 “Oil-based and renewable hydrocarbon biofuels” and Topic 3.5 “Bio-alcohols from Lignocellulosic Biomass” into session 3CV.2, “Biomass Energy Carriers, Renewable Hydrocarbons Production and Processes for Advanced Biofuels”, and starts at 14:00. For solid bioenergy carriers, the session includes presentations on the effect of pyrolysis conditions on subsequent densification, pyrolysis conditions and biochar production from spruce wood and bark, assessment of torrefaction for upgrading biomass, and the effect of torrefaction temperature on product quality. For biodiesel production, among others, examples are given of direct biogas conversion into liquid fuel, factors affecting yield in transesterification of jatropha oil. The session also addresses innovations in biochemical conversion of biomass, as well as processes such as butanol production from corn stover ethanol vinasse, advanced biofuel n-butyl levulinate and its utilisation in internal combustion engines.
There are two oral sessions on Thursday. The first, starting at 09:00, is for Topic 3.4 “Oil-based and renewable hydrocarbon biofuels”. Session 3DO.3 on “Innovations in Biodiesel Production and Use” deals with biodiesel production, for example delivering sustainable lipids for aviation, synthesis process for transport fuels, advanced biofuel n-butyl levulinate production from Arundo Donax and paper mill waste and biodiesel from micro algae with engine tests on the fuel.
The second oral session is from Topic 3.1 “Production of thermally treated solid fuels” and starting at 10:10. This is session 3DO.6 on “Thermally Treated Biomass – from Fundamentals to Applications” which deals with intermediate (commodity) bioenergy carriers as key to making forestry, agricultural biomass (residues) and organic wastes available for biochemicals/materials and bioenergy applications, in addition to facilitating sustainability certification and subsequent trade. Included are examples of thermo-acoustic upgrading of solid fuel, efficient biocoal materials for cofiring applications, biochar for electrodes in sodium-ion batteries and biomass as a reducing agent in blast furnace production of iron.