University of Hull logo

Choosing physical, physicochemical and chemical methods of pre-treating lignocellulosic wastes to repurpose into solid fuels (2019)
Journal Article
Taylor, M. J., Alabdrabalameer, H. A., & Skoulou, V. (2019). Choosing physical, physicochemical and chemical methods of pre-treating lignocellulosic wastes to repurpose into solid fuels. Sustainability, 11(13), https://doi.org/10.3390/su11133604

Various methods of physical, chemical and combined physicochemical pre-treatments for biomass waste valorization to value added feedstock for downstream processes in Chemical Industries have been reviewed. Where relevant literature was scrutinized fo... Read More

Synergistic effects of lignin and cellulose during pyrolysis of agricultural waste. (2018)
Journal Article
Volpe, R., Zabaniotou, A. A., & Skoulou, V. (2018). Synergistic effects of lignin and cellulose during pyrolysis of agricultural waste. Energy and Fuels, 32(8), 8420-8430. https://doi.org/10.1021/acs.energyfuels.8b00767

© 2018 American Chemical Society. Varying lignin and cellulose contents in agro-waste cause feed-stock to respond differently during their thermochemical conversion. The effect of pyrolysis temperature (400, 500, 600oC) and feedstock composition on p... Read More

Investigation and simulation of the transport of gas containing mercury in microporous silica membranes (2018)
Journal Article
Ji, G., George, A., Skoulou, V., Reed, G., Millan, M., Hooman, K., …Diniz da Costa, J. C. (2018). Investigation and simulation of the transport of gas containing mercury in microporous silica membranes. Chemical engineering science, 190, 286-296. https://doi.org/10.1016/j.ces.2018.06.006

This work investigates the effect of condensable Hg vapour on the transport of N2 gas across cobalt oxide silica (CoOxSi) membranes. Experimental results suggest that Hg significantly affects N2 permeation at 100 and 200°C, though this effect is negl... Read More

Wheat straw bio-refining. Part II: Optimization of the microwave radiation with sulphuric acid pre-treatment and its enzymatic hydrolysis for fermentable sugars (2017)
Journal Article
Festus, O., Skoulou, V. K., & Zein, S. H. (2017). Wheat straw bio-refining. Part II: Optimization of the microwave radiation with sulphuric acid pre-treatment and its enzymatic hydrolysis for fermentable sugars. Current Microwave Chemistry, 4(4), 306-316. https://doi.org/10.2174/2213335604666171103123459

Background: The potential of microwave-assisted heating for enhancing the alkaline pretreatment of lignocellulosic waste is highlighted in this work. Objective: To maximize separation of fermentable sugars from wheat straw. Methods: Wheat straw... Read More

Nanocarbons from acid pretreated waste coffee grounds using microwave radiation (2017)
Journal Article
Zein, S. H., Gyamera, B. A., & Skoulou, V. K. (2017). Nanocarbons from acid pretreated waste coffee grounds using microwave radiation. Materials letters, 193, 46-49. https://doi.org/10.1016/j.matlet.2017.01.100

This study investigates the use of microwave radiation to produce nanocarbons from Waste Coffee Grounds (WCG). It is first step to demonstrate the potential of integrating the microwave power to conventional methods of carbonaceous materials and nano... Read More

Possibilities of upgrading solid underutilized lingo-cellulosic feedstock (carob pods) to liquid bio-fuel: Bio-ethanol production and electricity generation in fuel cells - A critical appraisal of the required processes (2017)
Journal Article
Skoulou, V. K., & Vourdoubas, J. (2017). Possibilities of upgrading solid underutilized lingo-cellulosic feedstock (carob pods) to liquid bio-fuel: Bio-ethanol production and electricity generation in fuel cells - A critical appraisal of the required processes. Studies in Engineering and Technology, 4(1), 25-34. https://doi.org/10.11114/set.v4i1.2170

The exploitation of rich in sugars lingo-cellulosic residue of carob pods for bio-ethanol and bio-electricity generation has been investigated. The process could take place in two (2) or three (3) stages including: a) bio-ethanol production originate... Read More

Case study of viability of bioenergy production from landfill gas (LFG) (2016)
Journal Article
Vourdoubas, J., & Skoulou, V. K. (2016). Case study of viability of bioenergy production from landfill gas (LFG). Journal of Agricultural Science, 8(10), 165-176. https://doi.org/10.5539/jas.v8n10p165

The landfill gas (LFG) produced from the existing landfill site in Heraklion city, Crete island, Greece, is not currently exploited to its full potential. It could however be exploited for power generation and/or combined heat and power (CHP) product... Read More

CO2 integration in high temperature steam gasification (HTSG) of solid fuels and blends with waste (2016)
Conference Proceeding
Skoulou, V., Kantarelis, E., & Yang, W. (2017). CO2 integration in high temperature steam gasification (HTSG) of solid fuels and blends with waste. In European Biomass Conference and Exhibition Proceedings, 970-977. https://doi.org/10.5071/24thEUBCE2016-2CV.3.97

Aim of the present work is to investigate the viability of modifying the high temperature steam gasification process by adding CO2 in an attempt to tailor value added gas suitable for the energy - chemicals production industry. Such an integrated pro... Read More

Production of syngas by pressurized fluidized bed gasification of German Lignite in a H2O/CO2 atmosphere (2014)
Presentation / Conference
Long, X., Skoulou, V., Paterson, N., & Agorio-Millan, M. (2014, September). Production of syngas by pressurized fluidized bed gasification of German Lignite in a H2O/CO2 atmosphere. Presented at 10th European Conference on Coal Research and its Applications (10th ERCCIA), University of Hull, UK

The oxyfuel gasification concept enables a N2 free gas to be obtained by fluidised bed gasification (FBG). This process uses CO2 to moderate the bed temperature and thus agglomeration. An alternative cooling medium is steam, which could be employed a... Read More

The exploitation of biomass for building space heating in Greece: Energy, environmental and economic considerations (2013)
Journal Article
Michopoulos, A., Skoulou, V., Voulgari, V., Tsikaloudaki, A., & Kyriakis, N. A. (2014). The exploitation of biomass for building space heating in Greece: Energy, environmental and economic considerations. Energy Conversion and Management, 78, 276-285. https://doi.org/10.1016/j.enconman.2013.10.055

The exploitation of forest and agricultural biomass residues for energy production may offer significant advantages to the energy policy of the relevant country, but it strongly depends on a number of financial, technological and political factors. T... Read More

Co-gasification of crude glycerol with lignocellulosic biomass for enhanced syngas production (2012)
Journal Article
Skoulou, V. K., & Zabaniotou, A. A. (2013). Co-gasification of crude glycerol with lignocellulosic biomass for enhanced syngas production. Journal of Analytical and Applied Pyrolysis, 99, 110-116. https://doi.org/10.1016/j.jaap.2012.10.015

The present work concerns the co-gasification of crude glycerol (CG), a by-product of biodiesel industry, with locally available lignocellulosic biomass aiming at the production of syngas and further promotion of power production in dedicated bioener... Read More

H2 enriched fuels from co-pyrolysis of crude glycerol with biomass (2012)
Journal Article
Skoulou, V., Manara, P., & Zabaniotou, A. (2012). H2 enriched fuels from co-pyrolysis of crude glycerol with biomass. Journal of Analytical and Applied Pyrolysis, 97, 198-204. https://doi.org/10.1016/j.jaap.2012.05.011

Pyrolysis of glycerol has been identified as a possible route for producing high added value fuels like renewable hydrogen (H 2 ). Crude glycerol (CG) is the main byproduct of biodiesel industry and without purification it is a low added value materi... Read More

Fe catalysis for lignocellulosic biomass conversion to fuels and materials via thermochemical processes (2012)
Journal Article
Skoulou, V., & Zabaniotou, A. (2012). Fe catalysis for lignocellulosic biomass conversion to fuels and materials via thermochemical processes. Catalysis Today, 196(1), 56-66. https://doi.org/10.1016/j.cattod.2012.03.035

Recently, international research is aiming at developing gasification and pyrolysis processes for the cost-effective thermochemical conversion of non-food biomass to biofuels. Gasification produces a mixture of carbon monoxide and hydrogen, known as... Read More

Integrated environmental assessment of energy crops for biofuel and energy production in Greece (2012)
Journal Article
Fontaras, G., Skoulou, V., Zanakis, G., Zabaniotou, A., & Samaras, Z. (2012). Integrated environmental assessment of energy crops for biofuel and energy production in Greece. Renewable energy, 43, 201-209. https://doi.org/10.1016/j.renene.2011.12.010

This paper attempts an integrated environmental assessment of certain crops, their products and by-products, which are promoted in Greece, as potential raw materials for liquid biofuel and low carbon energy production. The analysis is based on the ex... Read More

Sustainable management of energy crops for integrated biofuels and green energy production in Greece (2011)
Journal Article
Skoulou, V., Mariolis, N., Zanakis, G., & Zabaniotou, A. (2011). Sustainable management of energy crops for integrated biofuels and green energy production in Greece. Renewable & sustainable energy reviews, 15(4), 1928-1936. https://doi.org/10.1016/j.rser.2010.12.019

The present work deals with the assessment of the sustainability and integrated management of four energy crops and their residues, in Greece. Pilot agronomic experiments were performed by cultivating cotton, sunflower, soya and rapeseed for the esti... Read More

Mobile gasification units for sustainable electricity production in rural areas: the SMARt-CHP project (2010)
Journal Article
Zabaniotou, A. A., Skoulou, V. K., Mertzis, D. P., Koufodimos, G. S., & Samaras, Z. C. (2011). Mobile gasification units for sustainable electricity production in rural areas: the SMARt-CHP project. Industrial & engineering chemistry research, 50(2), 602-608. https://doi.org/10.1021/ie100202p

This paper presents a 5 kW th biomass gasification pilot unit along with experimental results concerning producer gas composition. A chemical equilibrium mathematical model is also introduced and a comparison of measured and calculated results is pre... Read More

Bioenergy production for CO2-mitigation and rural development via valorisation of low value crop residues and their upgrade into energy carriers: A challenge for sunflower and soya residues (2009)
Journal Article
Zabaniotou, A., Kantarelis, E., Skoulou, V., & Chatziavgoustis, T. (2010). Bioenergy production for CO2-mitigation and rural development via valorisation of low value crop residues and their upgrade into energy carriers: A challenge for sunflower and soya residues. Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies, 101(2), 619-623. https://doi.org/10.1016/j.biortech.2009.08.004

The present study concerns the energetic valorization of sunflower and soya residues by air fixed-bed gasification. The main process parameters that have been investigated were the temperature and air equivalence ratio. Experimental results indicated... Read More

Effect of biomass leaching on H2 production, ash and tar behavior during high temperature steam gasification (HTSG) process (2009)
Journal Article
Skoulou, V., Kantarelis, E., Arvelakis, S., Yang, W., & Zabaniotou, A. (2009). Effect of biomass leaching on H2 production, ash and tar behavior during high temperature steam gasification (HTSG) process. International Journal of Hydrogen Energy, 34(14), 5666-5673. https://doi.org/10.1016/j.ijhydene.2009.05.117

The effect of biomass water leaching on H 2 production, as well as, prediction of ash thermal behavior and formation of biomass tar during high temperature steam gasification (HTSG) of olive kernel is the main aim of the present work. Within this stu... Read More

Process characteristics and products of olive kernel high temperature steam gasification (HTSG) (2008)
Journal Article
Skoulou, V., Swiderski, A., Yang, W., & Zabaniotou, A. (2009). Process characteristics and products of olive kernel high temperature steam gasification (HTSG). Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies, 100(8), 2444-2451. https://doi.org/10.1016/j.biortech.2008.11.021

Exploitation of olive kernel for bioenergy production, with respect to the green house gases (GHGs) mitigation, is the main aim of this work. In this study, olive kernels were used as a solid biofuel, and high temperature steam gasification (HTSG) wa... Read More

Low temperature gasification of olive kernels in a 5-kW fluidized bed reactor for H2-rich producer gas (2008)
Journal Article
Skoulou, V., Koufodimos, G., Samaras, Z., & Zabaniotou, A. (2008). Low temperature gasification of olive kernels in a 5-kW fluidized bed reactor for H2-rich producer gas. International Journal of Hydrogen Energy, 33(22), 6515-6524. https://doi.org/10.1016/j.ijhydene.2008.07.074

Air gasification of olive kernels in a 5 kW bench scale, bubbling fluidized bed gasifier, aimed at H 2 enrichment of the producer gas, was the target of this study. The effects of reactor temperature (T = 750-850 °C) and equivalence ratio (ER = 0.2-0... Read More