Daniel J. Hayes

Daniel J. Hayes
Celignis

Doctor of Philosophy

About

14
Publications
7,698
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805
Citations
Introduction
I am the founder and manager of Celignis Biomass Analysis Laboratory, a company that provides services for the characterisation of biomass samples. It is a spinout company from work I undertook during my PhD and subsequent post-doc projects (FP7, EPA, etc.). This work led to the development of accurate rapid analysis models for predicting the lignocellulosic composition of biomass from near infrared spectra. At Celignis the research continues, we are a participant in two H2020 projects.
Additional affiliations
May 2009 - June 2013
University of Limerick
Position
  • PostDoc Position
Description
  • Analysis of biomass for properties relevant to the production of advanced biofuels. Wrote and was involved in the management of a number of research projects.
Education
September 2006 - February 2011
University of Limerick
Field of study
  • Biomass Analysis
September 1997 - June 2001
University of East Anglia
Field of study
  • Environmental Science

Publications

Publications (14)
Article
Knowing the accurate composition of biomass is of crucial importance in order to assess and decide on the use and processes to be applied to specific biomass types. In this study, the composition of the lignocellulosic constituents present in forestry, agricultural and underutilised waste residues was assessed. Considering the increased interest on...
Article
Full-text available
As the utilization and consumption of lignocellulosic biomass increases, so too will the need for an adequate supply of feedstock. To meet these needs, novel waste feedstock materials will need to be utilized. Exploitation of these novel feedstocks will require information both on the effects of solvent extraction on the succeeding analysis of pote...
Article
Analytical data and quantitative near infrared (NIR) spectroscopy models for various lignocellulosic components (including Klason lignin and the constituent sugars glucose, xylose, mannose, arabinose, galactose, and rhamnose), ash, and ethanol-soluble extractives were obtained for 53 samples of paper and cardboard. These samples were mostly the typ...
Article
Full-text available
The ability of using novel method of near-infrared (NIR) spectra to predict the composition and higher heating value (HHV) of dry pig manure was examined. Number of pig manure solid fractions variously pre-treated samples were collected in Denmark, from different pig slurry treatment plants (using mechanical or chemical-mechanical separation) and t...
Chapter
Biomass feedstocks for the production of biofuels and chemicals vary greatly in their chemical compositions. These differences influence the types of technologies that are suitable for processing the feedstock. First-generation technologies focus on the conversion of sugars, starches, and oils, while second-generation technologies process lignocell...
Article
Miscanthus plants were sampled from several plantations in Ireland over the harvest window (October-April). These were separated into their anatomical components and the loss of leaves monitored. Three distinct phases were apparent: there was minimal loss in the "Early" (October to early December) and "Late" (March and April) phases, and rapid leaf...
Article
There has been a significant degree of hype regarding the commercial potential of second-generation biofuels (2GBs; biofuels sourced from lignocellulosic materials). In 2007, ambitious targets for the mass substitution of fossil-fuel-derived transport fuels by 2GBs were put forward in the United States and similar targets exist for other countries....
Article
Miscanthus samples were scanned over the visible and near infrared wavelengths at several stages of processing (wet-chopped, air-dried, dried and ground, and dried and sieved). Models were developed to predict lignocellulosic and elemental constituents based on these spectra. The dry and sieved scans gave the most accurate models; however the wet-c...
Article
This paper considers the contribution that biorefineries, through the production of second-generation biofuels from lignocellulosic feedstocks, can make in the Republic of Ireland to the mandated 10% transport biofuel quotient for 2020. An emphasis is placed on the avoidance of land-use conflict issues and, hence, on the prioritization of waste/res...
Article
Biofuels offer the potential to substitute for a large proportion of fossil fuels, however it is considered that the utilisation of lignocellulosic biomass, via second-generation biorefining technologies, will be necessary for this to be achieved economically and sustainably. The lignocellulosic matrix is complex and recalcitrant to conversion but...
Article
Full-text available
Currently, on a commercial scale, all biofuels are being produced by "first-generation" technologies. These require expensive and high-maintenance starch/sucrose/oil-based crops as their feedstocks. Such crops tend to be detrimental to the soil and have poor energy ratios (some researchers even propose that the entire production-cycle for ethanol s...

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Projects

Projects (3)
Archived project
Develop chemical hydrolysis methods for lignocellulosic biomass. Advance the art in the rapid analysis of lignocellulosic feedstocks.
Project
This project aims to demonstrate the potential of the investigated biomass integrated biorefinery configuration to produce green compostable bioplastic (PLA) and bioenergy in the form of biogas. Objectives: 1) Survey of candidate feedstocks and selection of 3 biomass substrates for bioprocessing. 2) Quantify the extractable LA yield per fresh tonne of biomass and the biogas potential of the biomass residues after LA extraction. 3) Optimise the LA and methane yield produced, including catalyst type/concentration. 4) Combine project findings with estimated yields of PLA from LA for drawing up a proposed pilot plant utilising this integrated biorefinery concept, involving a consultation with stakeholders.
Project
We of the Carbolea Research Group of the University of Limerick have been involved in studies (by Near IR) of the sugar components of lignocellulose biomass and in crop residues, etc. Our interests in second generation biorefining have involved investigations of the mechanisms of transformations of hexoses to HMF and pentoses to Furful, and transformations to levulinic acid (Leva0. levA has been our platform chemical for the genesis of fuels to replace petroleum and of green chemicals and products to replace petrochemicals We continue with our involvements with research in the humic substances (HSs) sciences, and with biochars. we will be embarking on studies with Seaweeds.