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)
Monday 6th July
Three consecutive oral sessions for Topic 3.7, “Bio-based chemicals and materials”. Starting at 13:30, 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, a surface cleaning product from mango residues and sunscreens formulated with nanoparticles of modified Kraft lignins.
The second oral session within Topic 3.7, 3AO.6, commences at 15:15 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 optimization of a biogas plant integrated with membrane distillation for nutrients and water recovery.
The final oral session for Topic 3.7, 3AO.9, commences at 17:00 on the subject of “Chemical Pathways to Biobased Products”. This session focusses on chemical strategies for converting biomass to products and includes examples of heterogeneously catalysed conversion of cellulose to high-added value chemicals, 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.
There is also one visual/poster session on Monday afternoon starting at 17:00, from Topic 3.6, “Biorefineries”. Session 3AV.6 is 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 algae, fruit waste, wood waste and residual lignin, for a number of bio-based products. The session also includes development of a decision support tool for the systematic analysis of integrated biorefineries.
Tuesday 7th July
There are three oral sessions for Topic 3.6, “Biorefineries”, starting at 08:30 with 3BO.3 on “System Assessment in Biorefineries” which addresses techno-economic and life-cycle assessment of biorefineries. Examples are given for optimization of a new biomass-to-liquid plant configuration, optimizing biomass utilisation in iron and steel production and pulsed electric field treatment and hydrothermal liquefaction of microalgae.
The second oral session within 3.6, 3BO.7, commences at 13:30 and is entitled “Concepts for Biorefineries”. Here, the focus is on integrated concept developments and includes examples of biofuels from macroalgae, chemicals and biogas production from food waste, coupling ethanol fermentation, anaerobic digestion and pyrolysis and lignin-based biorefinery.
The final oral session for Topic 3.6, 3BO.11, commences at 15:15 on the subject of “Bio-based Products from Biorefineries” and includes for example, value-added products from sewage sludge, the green gas route with bio-BTX co-production, integrated biodiesel and biopolyols production and combining chemical and biotechnological processes for fine and platform chemicals from wood.
There are also two visual/poster sessions on Tuesday. The first, for the “Pyrolysis” Topic 3.2, starts at 08:30. This session 3BV.2 on “Analytical Pyrolysis, Processes and Products” 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.
Starting at 15:15 for Topic 3.3, “Hydrothermal processing”, is session 3BV.5 on “Hydrothermal Processing” and featuring 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.
Wednesday 8th July
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 08:30 with session 3CO.3 entitled “Upgrade of Pyrolysis Products” and dealing with the upgrade of the liquid pyrolysis products by fractional condensation and esterification, fractionated product recovery for chemicals, materials, fuels and energy and also pyrolysis using a molten salt process which is enjoying renewed interest. Also included is analysis of the aqueous phase of the pyrolysis liquid in terms of the options for its disposal.
The second oral session for Topic 3.2 is 3CO.7 entitled “Pyrolysis Processes and Analytics” and which starts at 13:30. This session introduces advanced analytical technologies including Pyrolysis TG-MS as well as fast pyrolysis of lignin using a fluidised bed. Also included are catalytical pyrolysis, thermo-catalytic reforming of sewage sludge and grid measurements in a gas turbine combustor fueled with pyrolysis oil.
The two oral sessions for Topic 3.3, “Hydrothermal processing”, commence with 3CO.11 at 15:15 on “Modelling Hydrothermal and Liquid Product Upgrading”. In the first part of the session the presentations cover cost modelling and schemes for hydrothermal processes; these are followed by a detailed focus on catalytic hydrotreatment of HTL biocrudes, nitrogen removal and thermochemical pre-treatments for hydrothermal liquefaction of sewage sludge.
The second oral session for Topic 3.3 is 3CO.15 entitled “Treatment and Analysis of Hydrothermal Process Streams” and which starts at 17:00. This session covers advanced analysis of hydrothermal processes , including the fate of residues, the behaviour of black liquor salts and their continuous extraction, coupling of hydrothermal carbonization of biogas digestate and supercritical water gasification of liquid by-products and a detailed view of hydrothermal co-carbonization of waste biomass to reduced air pollution.
There are also two visual/poster sessions on Wednesday, both for the “Biorefineries” Topic 3.7. The first session, 3CV.1 on “Biotechnological Approaches to Biobased Materials and Chemicals” starts at 08:30. This session covers a wide range of primarily biotechnological conversion routes for biomass to chemicals and materials, for example microalgae starch-based bioplastics, 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 second visual/poster session for 3.7 is3CV.3, “Conversion Routes to Biobased Materials and Chemicals”, starting at 13:30 and covering a wide range of chemical approaches for conversion of biomass to chemicals and materials, including biodegradable plastics from food waste, polyethylene 2.5-furandicarboxylate from fructose, fertilizer from wood ashes, green solvents from MSW, succinic acid from corn cobs, adipic acid, L-lactic acid from agricultural residues, xylitol from wheat straw, nano silica from rice straw, mesoporous silica from rice husk, N-hexane from electrolysis of butyric acid and shipping fuels.
Thursday 9th July
There are three 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 of biodiesel by supercritical carbon dioxide treatment of mango seed oil, 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 10:45. 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. They facilitate logistics and conversion, as well as sustainability certification and subsequent trade. Included are examples of thermo-acoustic upgrading of solid fuel, the influence of heating rate and thermal staging on hydrochar chemistry, biochar for electrodes in sodium-ion batteries and biomass as a reducing agent in blast furnace production of iron.
The third oral session is from Topic 3.5, “Bio-alcohols from Lignocellulosic Biomass”. The first of these sessions, 3DO.9, 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 integrated high solid fermentation with membrane extraction systems, simultaneous saccharification and fermentation using mixed microbial cultures and hydrolytic enzymes from food waste, predicting lignocellulosic recalcitrance to optimise biofuel production, each of these amongst the latest advances in this topic.
There are also two visual/poster sessions, the first, 3DV.4, from Topic 3.5 “Bio-alcohols from Lignocellulosic Biomass” starting at 10:45 on the subject of “Pretreatment, Enzymatic Hydrolysis and Fermentation for Advanced Biofuels”. This session addresses innovations in biochemical conversion of biomass, including feedstock pre-treatments, for example sequential acid and steam explosion pretreatment for ethanol production, pretreatment with Szego mill for bioethanol and biogas production, biological pre-treatment of rice husks, 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 and 2,3-butanediol from lignocellulosic sugars from bacillus velezensis, bacillus toyonensis and bacillus safensis.
The final visual/poster session combines contributions from Topic 3.1 “Production of thermally treated solid fuels” and Topic 3.4 “Oil-based and renewable hydrocarbon biofuels” into session 3DV.6, “Biomass energy carriers, biodiesel fuels and renewable hydrocarbons production and application”. 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 catalyst preparation for fast pyrolysis bio-oil hydrodeoxygenation, direct biogas conversion into liquid fuel, factors affecting yield in transesterification of jatropha oil, synthesis of high-density fuel and enzyme in the transformation of vinyl laurate into biofuels.