Skip to main content

Dr. James J Leahy

Biography

Prof J J Leahy is currently an associate professor in the Dept of Chemical Sciences at the University of Limerick where he is involved in teaching, curriculum development and research in the area of waste management and renewable energy. He currently heads a research group consisting of chemists and chemical engineers that is focused on chemical technologies for biofuels and biorefining from wastes with particular interests in :

  • Identifying the optimum thermochemical route (gasification, pyrolysis), & chemical hydrolysis route for the production of chemicals and second generation transport fuel from bio-waste.
  • Using laboratory & pilot scale processing facilities to test & optimise the yield of selected product from characterised feedstocks. The goal will be to develop novelty through optimising the process variables for particular feedstocks or products.
  • Develop and test catalysts/chemical processes for the production of and upgrading bio-oil.
  • Develop state of the art pre-treatment processes, that will enable rapid and environmentally benign procedures for hydrolysis of the carbohydrate components in lignocellulosic materials.
  • Demonstrate the feasibility of producing bio syngas and develop and test catalysts/chemical processes for production of alcohol or diesel fuels

He has a strong research background in applied biofuels research and has forged strong links with major and small stakeholders with the biofuels industry nationally. This collaboration with industry has led to two start-up biofuels companies in themed-west region. This research record is reflected in both a publication record in international journals and a demonstrated ability to attract funding from industry as well as national and international funding agencies. He plays a key role in several major EC funded and National projects bioenergy, biofuels and biorefineries. A major strength of the candidate is his ability to foster and develop collaborations with Universities and Research Institutes engaged in research in renewable energy both at national and EU level. This will be important both in providing a strong platform for the University of Limerick to increase it’s profile nationally in the energy space and to create a profile with significant international impact.

Research Interests

                       


  • Identifying the optimum thermochemical route (gasification, pyrolysis), & chemical hydrolysis route for the production of chemicals and second generation transport fuel from biomass & waste.


  • Using laboratory & pilot scale processing facilities to test & optimise the yield of selected product from characterised feedstocks. The goal will be to develop novelty through optimising the process variables for particular feedstocks or products.


  • Develop and test catalysts/chemical processes for the production of and upgrading bio-oil.


  • Develop state of the art pre-treatment processes, that will enable rapid and environmentally benign procedures for hydrolysis of the carbohydrate components in lignocellulosic materials.


  • Demonstrate the feasibility of producing bio syngas and develop and test catalysts/chemical processes for production of alcohol or diesel fuels

                          

Publications

Book Chapter

2013

Bioenergy Production
Sommer, SG; Ward, AJ; Leahy, JJ
Animal Manure Recycling: Treatment and Management DOI: 10.1002/9781118676677

2003

Energy from Biomass
P Zappelli J J leahy
Carbon Dioxide Recovery & Utilisation

2002

Effects of Electromagnetic Radiation on Colloid and Interfacial Behavior
Leahy J J.
The Encyclopedia of Surface and Colloid Science

2000

AnAgeing Study of Air Activated Adhesives
Lyons, E , J.J. Leahy
Ageing Studies & Lifetime Extension of Materials

2000

Ageing characteristics of g irradiated ultra-high molecular weight polyethylene.
O’Neill, P., C. Birkinshaw , J.J. Leahy
Ageing Studies & Lifetime Extension of Materials

Conference Contribution

2008

60th Irish Universities Chemistry Research Colloquium
Golden, T., J.J. Leahy, T. Curtin

Conference Publication

2015

American Chemical Society Spring National Meeting
Flannelly T., Dooley S., Leahy J.J

2012

Cat4Bio Thessaloniki
Melligan F., Kwapinski W., Leahy J.J., Hayes M.H.B.

2012

4th International Symposium on Energy from Biomass and Waste
Wnetrzak R., Leahy J.J., Peters K., Jensen L.S., Kwapinski W.

2012

UBIOCHEM
Melligan F., Leahy J.J., Hayes M.H.B., Kwapinski W.

2012

19th International Symposium on Analytical and Applied Pyrolysis
Melligan F., Leahy J.J., Hayes M.H.B., Kwapinski W.

2011

Proceedings 21st Irish Environmental Researchers’ Colloquium, Environ 2011
Troy S., Nolan T., Lawlor P., Leahy J. Healy M., Kwapinski W.

2011

Science and Industry – Spectroscopic methods in practice
Wnetrzak R., Kolodynska D., Hubicki Z., Kwapinski W., Leahy J.J., Hayes M.H.B.

2011

Hybrid Materials, Strasburg
Li Zhonglai, Kwapinski W. Leahy J.J.

2011

22nd North American Catalysis Society Meeting
Li Zonglai, Kwapinski W., Leahy J.J.

2011

Nauka i przemysl – metody spektroskopowe w praktyce, nowe wyzwania i mozliwosci, ISBN 978-83-227-3227-4
Wnetrzak R., Kolodynska D., Hubicki Z., Kwapinski W., Leahy J.J., Hayes M.H.B.

2011

Hybrid Materials - organized by Elsevier
Li Zhonglai, Kwapinski W., Leahy J.J.

2010

Managing livestock manure for sustainable agriculture
Kwapinski W., Troy S., Wnetrzak R., Piterina A., Healy M.G., Nolan T., Lawlor P.G., Leahy J.J., Hayes M.H.B.

2010

15th IHSS Conference, Tenerife
Kwapinski W., Wolfram P., Byrne C., Melligan F., Novotny E.H., Leahy J.J., Hayes M.H.B.

2010

Bioten conference
Kwapinski W., Melligan F., Byrne B., Wolfram P., Nowotny E., Haverty D., Leahy J.J., Hayes M.H.B.

2010

Bioten conference
Kwapinski W., Wnetrzak R., Melligan F., Leahy J.J., Hayes M.H.B.

2010

2nd annual UK Biochar Conference, Rothamsted
Byrne C., Kwapinski W., Wolfram P., Melligan F., Novotny E.H., Leahy J.J., Hayes M.H.B.

2010

10th European Gasification Conference, Amsterdam
Kwapinska M., Kwapinski W., Leahy J.J.

2010

3rd International Conference on Engineering for Waste and Biomass Valorization, Beijing
Kwapinski W., Byrne C., Kryachko E., Wolfram P., Adley C., Leahy J.J., Hayes M.H.B.

2010

3rd International Biochar Conference: IBI 2010
Hayes, M.H.B., Byrne, C.M.P., Kwapinski, W., Wolfram, P., Melligan, F.J., Novotny, E.H., Leahy, J.J.

2010

3rd International Conference on Engineering for Waste and Biomass Valorization, Beijing
Kwapinski W., Wnetrzak R., Melligan F., Leahy J.J., Hayes M.H.B.

2009

Working Party on Computer Aided Process Engineering
Melligan F., Kwapinski W., Leahy J.J., Hayes M.H.

2009

IRCSET Symposium
Melligan F., Kwapinski W., Leahy J.J., Hayes M.H.

2009

Energy Solutions¿09 `Energy to drive the Irish Economy¿
Kwapinski W., Kryachko E., Melligan F., Leahy J.J., Hayes M.H.B.

2009

Working Party on Computer Aided Process Engineering
Melligan F., Kwapinski W., Leahy J.J., Hayes M.H.

2008

16th European Biomass Conference & Exhibition
Kwapinski W., Leahy J.J., Hayes M.H.

2008

16th European Biomass Conference & Exhibition
Kwapinski W., Leahy J.J., Hayes M.H.

2007

5th Euro Fed Lipid Congress
Golden T, Curtin T and Leahy J.J.

2007

59th Irish Universities Chemistry Research Colloquium.
McArdle S., Leahy, JJ and Curtin T.

2007

16th congress of the European Academy of Dermatology and Venerology
Nilsson, G, Anderson, C., Henricson, J., Leahy, J, O¿Doherty, J. and Sj¿berg, F.

2006

Global Conference on Renewable Energy Approaches for Desert Regions
Fogarty, C. Madden, O., O¿ Connell, M., Howard-Hildige, R.,Leahy, J.J. and Mc Ardle, S.,

2006

97th AOCS Annual Meeting & Expo
S.Mc Ardle, J.J. Leahy and T.Curtin,

2004

4th International IEEE Conference on Polymers and Adhesives in Microelectronics and Photonics,
Griffin, P., J.J. Leahy, J. Punch, T. Galkin, E. Elonen and O. Rusanen,

2004

2004 4TH IEEE INTERNATIONAL CONFERENCE ON POLYMERS AND ADHESIVES IN MICROELECTRONICS AND PHOTONICS
Griffin, P; Leahy, JJ; Punch, J; Galkin, T; Elonen, E; Rusanen, O

2002

Ecotopia 2002
O¿Connell, A., Mercier, E., (INSA Toulouse), Howard-Hildige, R., Leahy, J.J.

2001

International Conference on Agricultural Science and Technology
Leahy, M. J., Kelleher, B. P., Henihan, A. M., Leahy, J.J., Abelha, P., Gulyurtlu, I., Boavida, D., Seabra, J. and Cabrita, I.

2000

Environmental Monitoring and Assessment
Gonzalez Gomez M.E., Howard-Hildige R., Leahy J.J., O'Reilly T., Supple B., Malone M.
Environmental Monitoring And Assessment

1999

8th International Symposium on Transport and Air Pollution
T. O¿Reilly, R. Howard-Hildige, J.J. Leahy, E. Gonzales, B. Supple, A Ryan and M. Malone

1999

2nd International Conference on Urban Air Quality ¿ Measurement, Modelling and Management.
M.E. Gonzales Gomez, R. Howard-Hildige, J.J. Leahy, T. O¿Reilly, B.Supple and M. Malone

1995

AIR POLLUTION III, VOL 2: AIR POLLUTION ENGINEERING AND MANAGEMENT
HowardHildige, R; Condon, S; Leahy, JJ; McDonnell, K

Other Journal

Other Publication

2015

Mechanism and Kinetics of Advantaged Biofuels Synthesis from D-Fructose
Flannelly T., Howard M., Dooley S., Leahy J.J

2004

Combustion of poultry litter in a fluidised bed combustor (vol 82,pg 687, 2003)
Abelha, P; Gulyurtlu, I; Boavida, D; Barros, JS; Cabrita, I; Leahy, J; Kelleher, B; Leahy, M; Henihan, AM
Fuel DOI: 10.1016/j.fuel.2004.07.010

2002

Advances in poultry litter disposal technology - a review
Kelleher, BP; Leahy, JJ; Henihan, AM; O'Dwyer, TF; Sutton, D; Leahy, MJ
Bioresource Technology DOI: 10.1016/S0960-8524(01)00133-X

1990

THERMAL AGING OF PEAT BITUMEN
LEAHY, JJ; DRAKE, JAG; BIRKINSHAW, C
Fuel DOI: 10.1016/0016-2361(90)90048-U

Peer Reviewed Journal

2016

Chemically and biologically-mediated fertilizing value of manure-derived biochar
Subedi, R,Taupe, N,Ikoyi, I,Bertora, C,Zavattaro, L,Schmalenberger, A,Leahy, JJ,Grignani, C
The Science of the total environment DOI: 10.1016/j.scitotenv.2016.01.160

2016

Updraft gasification of poultry litter at farm-scale - A case study
Taupe, NC,Lynch, D,Wnetrzak, R,Kwapinska, M,Kwapinski, W,Leahy, JJ
Waste Management DOI: 10.1016/j.wasman.2016.02.036

2016

Greenhouse gas emissions and soil properties following amendment with manure-derived biochars: Influence of pyrolysis temperature and feedstock type
Subedi, R,Taupe, N,Pelissetti, S,Petruzzelli, L,Bertora, C,Leahy, JJ,Grignani, C
Journal Of Environmental Management DOI: 10.1016/j.jenvman.2015.10.007

2016

Poultry Litter Gasification in a Fluidized Bed Reactor: Effects of Gasifying Agent and Limestone Addition
Pandey, DS,Kwapinska, M,Gomez-Barea, A,Horvat, A,Fryda, LE,Rabou, LPLM,Leahy, JJ,Kwapinski, W
Energy & Fuels DOI: 10.1021/acs.energyfuels.6b00058

2015

Ruthenium Clusters on Carbon Nanofibers for Formic Acid Decomposition: Effect of Doping the Support with Nitrogen
Zacharska, M,Podyacheva, OY,Kibis, LS,Boronin, AI,Senkovskiy, BV,Gerasimov, EY,Taran, OP,Ayusheev, AB,Parmon, VN,Leahy, JJ,Bulushev, DA
Chemcatchem DOI: 10.1002/cctc.201500216

2015

Determination of the Higher Heating Value of Pig Manure
Wnetrzak, R,Hayes, DJM,Jensen, LS,Leahy, JJ,Kwapinski, W
Waste And Biomass Valorization DOI: 10.1007/s12649-015-9350-y

2015

Catalytically Upgrading Bio-oil via Esterification
Liu, YC,Li, ZL,Leahy, JJ,Kwapinski, W
Energy & Fuels DOI: 10.1021/acs.energyfuels.5b00163

2015

Pig slurry characteristics, nutrient balance and biogas production as affected by separation and acidification
Sommer, SG,Hjorth, M,Leahy, JJ,Zhu, K,Christel, W,Sorensen, CG,Sutaryo
Journal Of Agricultural Science DOI: 10.1017/S0021859614000367

2014

Behavior of heavy metals during fluidized bed combustion of poultry litter
Lynch, D., Low, F., Henihan, A.M., (...), Zhang, L., Leahy, J.J.
Energy & Fuels DOI: 10.1021/ef500981k

2014

Gasification of torrefied Miscanthus x giganteus in an air-blown bubbling fluidized bed gasifier
Xue, G,Kwapinska, M,Horvat, A,Kwapinski, W,Rabou, LPLM,Dooley, S,Czajka, KM,Leahy, JJ
Bioresource Technology DOI: 10.1016/j.biortech.2014.02.094

2014

Gasification of torrefied Miscanthus×giganteus in an air-blown bubbling fluidized bed gasifier
Xue, G., Kwapinska, M., Horvat, A., (...), Czajka, K.M., Leahy, J.J.
Bioresource Technology DOI: 10.1016/j.biortech.2014.02.094

2014

Influence of pig manure biochar mineral content on Cr(III) sorption capacity
Wnetrzak, R,Leahy, JJ,Chojnacka, KW,Saeid, A,Novotny, E,Jensen, LS,Kwapinski, W
Journal Of Chemical Technology And Biotechnology DOI: 10.1002/jctb.4159

2014

Behavior of Heavy Metals during Fluidized Bed Combustion of Poultry Litter
Lynch, D,Low, F,Henihan, AM,Garcia, A,Kwapinski, W,Zhang, L,Leahy, JJ
Energy & Fuels DOI: 10.1021/ef500981k

2014

Impact of torrefaction on properties of Miscanthus x giganteus relevant to gasification
Xue, G,Kwapinska, M,Kwapinski, W,Czajka, KM,Kennedy, J,Leahy, JJ
Fuel DOI: 10.1016/j.fuel.2013.12.022

2014

Influence of pig manure biochar mineral content on Cr(III) sorption capacity
Wnetrzak, R., Leahy, J.J., Chojnacka, K.W., (...), Jensen, L.S., Kwapinski, W.
Journal Of Chemical Technology And Biotechnology DOI: 10.1002/jctb.4159

2014

The effect of hydrogen peroxide concentration and solid loading on the fractionation of biomass in formic acid
Dussan, K., Girisuta, B., Haverty, D., Leahy, J.J., Hayes, M.H.B.
Carbohydrate Polymers DOI: 10.1016/j.carbpol.2014.04.039

2013

The influence of the pig manure separation system on the energy production potentials
Wnetrzak, R,Kwapinski, W,Peters, K,Sommer, SG,Jensen, LS,Leahy, JJ
Bioresource Technology DOI: 10.1016/j.biortech.2013.03.001

2013

Optimizing the Fat and Water Content of Impaction Bone Allograft
McKenna, PB,Leahy, JJ,Masterson, EL,McGloughlin, TM
Journal Of Orthopaedic Research DOI: 10.1002/jor.22213

2013

Bioenergy Production
Ward, AJ,Leahy, JJ,Sommer, SG,Christensen, ML,Schmidt, T,Jensen, LS
Animal Manure Recycling: Treatment And Management

2013

A kinetic study of acid catalysed hydrolysis of sugar cane bagasse to levulinic acid
Girisuta, B,Dussan, K,Haverty, D,Leahy, JJ,Hayes, MHB
Chemical Engineering Journal DOI: 10.1016/j.cej.2012.11.094

2013

Kinetics of levulinic acid and furfural production from Miscanthus x giganteus
Dussan, K,Girisuta, B,Haverty, D,Leahy, JJ,Hayes, MHB
Bioresource Technology DOI: 10.1016/j.biortech.2013.09.006

2013

Utilisation of poultry litter as an energy feedstock
Henihan, AM,Bowen, B,Lynch, D,McDonnell, K,Kwapinski, W,Leahy, JJ
Biomass & Bioenergy DOI: 10.1016/j.biombioe.2012.12.009

2012

Effect of sawdust addition on composting of separated raw and anaerobically digested pig manure
Troy, SM,Nolan, T,Kwapinski, W,Leahy, JJ,Healy, MG,Lawlor, PG
Journal Of Environmental Management DOI: 10.1016/j.jenvman.2012.06.035

2012

Pyrolysis GC/MS of Miscanthus x giganteus with Ni-ZSM-5 and Ni-MCM-41 in a hydrogen atmosphere.
Melligan F., Hayes M.H.B., Kwapinski W., Leahy J.J.
Energy & Fuels

2012

Kinetic and adsorptive characterization of biochar in metal ions removal
Kolodynska, D,Wnetrzak, R,Leahy, JJ,Hayes, MHB,Kwapinski, W,Hubicki, Z
Chemical Engineering Journal DOI: 10.1016/j.cej.2012.05.025

2012

Characterisation of the products from pyrolysis of residues after acid hydrolysis of Miscanthus
Melligan, F,Dussan, K,Auccaise, R,Novotny, EH,Leahy, JJ,Hayes, MHB,Kwapinski, W
Bioresource Technology DOI: 10.1016/j.biortech.2011.12.110

2012
2011

Selective hydrogenation of sunflower oil over noble metal catalysts
McArdle, S; Girish, S; Leahy, JJ; Curtin, T
Journal Of Molecular Catalysis A-Chemical DOI: 10.1016/j.molcata.2011.10.004

2011

Pressurised pyrolysis of Miscanthus using a fixed bed reactor
Melligan, F; Auccaise, R; Novotny, EH; Leahy, JJ; Hayes, MHB; Kwapinski, W
Bioresource Technology DOI: 10.1016/j.biortech.2010.10.129

2011
2010

Biochar from Biomass and Waste
Kwapinski, W,Byrne, CMP,Kryachko, E,Wolfram, P,Adley, C,Leahy, JJ,Novotny, EH,Hayes, MHB
Waste And Biomass Valorization DOI: 10.1007/s12649-010-9024-8

2010

Biochar from biomass and waste
Kwapinski W., Byrne C.M.P., Kryachko E., Wolfram P., Adley C., Leahy J.J., Novotny E.H., Hayes M.H.B.
Waste And Biomass Valorization DOI: 10.1007/s12649-010-9024-8

2008

Crystal ageing in irradiated ultra high molecular weight polyethylene
Barron, D; Collins, MN; Flannery, MJ; Leahy, JJ; Birkinshaw, C
Journal Of Materials Science-Materials In Medicine DOI: 10.1007/s10856-007-3333-x

2004

Metal ion adsorption by peat and solvent-extracted peat
Minihan, MM; McCann, E; Leahy, JJ
Adsorption Science & Technology DOI: 10.1260/0263617053499014

2004

Isotherm studies on the adsorption of Iron, Barium and Lead by peat and chemically modified peat.
Minihan, M; McCann, E; Leahy, JJ
Journal Of Chemical Technology And Biotechnology

2003

Monitoring and dispersion modelling of emissions from the fluidised bed combustion of poultry litter
Henihan, AM; Kelleher, BP; Leahy, MJ; Cummins, E; Leahy, JJ
Environmental Monitoring And Assessment DOI: 10.1023/A:1023998231392

2003

Emissions modeling of fluidised bed co-combustion of poultry litter and peat
Henihan, AM; Leahy, MJ; Leahy, JJ; Cummins, E; Kelleher, BP
Bioresource Technology DOI: 10.1016/S0960-8524(02)00234-1

2003

Combustion of poultry litter in a fluidised bed combustor
Abelha, P; Gulyurtlu, I; Boavida, D; Barros, JS; Cabrita, I; Leahy, J; Kelleher, B; Leahy, A
Fuel DOI: 10.1016/S0016-2361(02)00317-4

2003

Camelina oil as a fuel for diesel transport engines
Bernardo, A; Howard-Hildige, R; O'Connell, A; Nichol, R; Ryan, J; Rice, B; Roche, E; Leahy, JJ
Industrial Crops And Products DOI: 10.1016/S0926-6690(02)00098-5

2002

The effect of steam treating waste cooking oil on the yield of methyl ester
Supple, B; Howard-Hildige, R; Gonzalez-Gomez, E; Leahy, JJ
Journal Of The American Oil Chemists Society DOI: 10.1007/s11746-002-0454-1

2002

The use of fly ash from the combustion of poultry litter for the adsorption of chromium(III) from aqueous solution
Kelleher, BP; O'Callaghan, MN; Leahy, MJ; O'Dwyer, TF; Leahy, JJ
Journal Of Chemical Technology And Biotechnology DOI: 10.1002/jctb.689

2002

Advances in Poultry Litter Disposal Technology - A Review
Kelleher, BP; Leahy, JJ; Henihan, AM; O'Dwyer, TF; Sutton, D; Leahy, M
Bioresource Technology

2002
2001

Behaviour of meat and bonemeal/peat pellets in a bench scale fluidised bed combustor
McDonnell, K; Desmond, J; Leahy, JJ; Howard-Hildige, R; Ward, S
Energy DOI: 10.1016/S0360-5442(00)00048-7

2000

Emission and performance characteristics of a 2 litre Toyota diesel van operating on esterified waste cooking oil and mineral diesel fuel.
Gomez, MEG; Howard-Hildige, R; Leahy, JJ; O'Reilly, T; Supple, B; Malone, M
Environmental Monitoring And Assessment DOI: 10.1023/A:1006446326210

2000
1999

The role of long lived free radicals in the ageing of irradiated ultra high molecular weight polyethylene
O'Neill, P; Birkinshaw, C; Leahy, JJ; Barklie, R
Polymer Degradation And Stability DOI: 10.1016/S0141-3910(98)00058-5

1999

Chemical modelling of an Irish raised bog at Clara, co. Offaly
McKeon, M; Leahy, JJ; Moles, R
Biology And Environment

1999

Properties of rapeseed oil for use as a diesel fuel extender
McDonnell, K; Ward, S; Leahy, JJ; McNulty, P
Journal Of The American Oil Chemists Society DOI: 10.1007/s11746-999-0001-y

1997

The rheology of peat/solvent slurries
Leahy, JJ; Hughes, MA
Journal Of Chemical Technology And Biotechnology DOI: 10.1002/(SICI)1097-4660(199710)70:2<193::AID-JCTB748>3.0.CO;2-Q

1995

THE DISTRIBUTION OF OXIDATION-PRODUCTS IN IRRADIATED ULTRA-HIGH-MOLECULAR-WEIGHT POLYETHYLENE
ONEILL, P; BIRKINSHAW, C; LEAHY, JJ; BUGGY, M; ASHIDA, T
Polymer Degradation And Stability DOI: 10.1016/0141-3910(95)87005-9

1995
1992

THE CHEMICAL AND PHYSICAL STRUCTURE OF PEAT BITUMENS
LEAHY, JJ; BIRKINSHAW, C
Journal Of Chemical Technology And Biotechnology

1992

The Chemical and Physical Structure of Peat Bitumens
Birkinshaw, C; Leahy, JJ
Journal Of Chemical Technology And Biotechnology

1990

Thermal Ageing of Peat Bitumen
Birkinshaw, C; Leahy, JJ; Drake, JAG
Fuel

Published Report

2011

Scientific Assessment in support of the Materials Roadmap enabling Low Carbon Energy Technologies
W.H. Schwarz, O.J. Bello, W de Jong, J.J.Leahy, J. Oakey, K.Oyaas, L.Sorum, H.Steinmüller
DOI: doi: 40833