Imperial College London

Dr Jason P. Hallett

Faculty of EngineeringDepartment of Chemical Engineering

Reader in Sustainable Chemical Technology
 
 
 
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Contact

 

+44 (0)20 7594 5388j.hallett Website

 
 
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Location

 

228bBone BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

111 results found

Clarke CJ, Tu W-C, Levers O, Bröhl A, Hallett JPet al., 2018, Green and Sustainable Solvents in Chemical Processes., Chem Rev

Sustainable solvents are a topic of growing interest in both the research community and the chemical industry due to a growing awareness of the impact of solvents on pollution, energy usage, and contributions to air quality and climate change. Solvent losses represent a major portion of organic pollution, and solvent removal represents a large proportion of process energy consumption. To counter these issues, a range of greener or more sustainable solvents have been proposed and developed over the past three decades. Much of the focus has been on the environmental credentials of the solvent itself, although how a substance is deployed is as important to sustainability as what it is made from. In this Review, we consider several aspects of the most prominent sustainable organic solvents in use today, ionic liquids, deep eutectic solvents, supercritical fluids, switchable solvents, liquid polymers, and renewable solvents. We examine not only the performance of each class of solvent within the context of the reactions or extractions for which it is employed, but also give consideration to the wider context of the process and system within which the solvent is deployed. A wide range of technical, economic, and environmental factors are considered, giving a more complete picture of the current status of sustainable solvent research and development.

JOURNAL ARTICLE

Brandt-Talbot A, Gschwend FJV, Fennell PS, Lammens TM, Tan B, Weale J, Hallett JPet al., 2017, An economically viable ionic liquid for the fractionation of lignocellulosic biomass, GREEN CHEMISTRY, Vol: 19, Pages: 3078-3102, ISSN: 1463-9262

JOURNAL ARTICLE

Brogan APS, Hallett JP, 2017, Protein-polymer surfactant nanoconjugates for biocatalysis in anhydrous ionic liquids, 19th IUPAB Congress / 11th EBSA Congress, Publisher: SPRINGER, Pages: S362-S362, ISSN: 0175-7571

CONFERENCE PAPER

Daud NMAN, Bakis E, Hallett JP, Weber CC, Welton Tet al., 2017, Evidence for the spontaneous formation of N-heterocyclic carbenes in imidazolium based ionic liquids, CHEMICAL COMMUNICATIONS, Vol: 53, Pages: 11154-11156, ISSN: 1359-7345

JOURNAL ARTICLE

Gschwend FJV, Brandt-Talbot A, Chambon CL, Hallett JPet al., 2017, Ultra-Low Cost Ionic Liquids for the Delignification of Biomass, Editors: Shiflett, Scurto, Publisher: AMER CHEMICAL SOC, Pages: 209-223, ISBN: 978-0-8412-3213-6

BOOK CHAPTER

Mota-Martinez MT, Hallett JP, Mac Dowell N, 2017, Solvent selection and design for CO 2 capture – how we might have been missing the point, Sustainable Energy & Fuels

JOURNAL ARTICLE

Prado R, Weigand L, Zahari SMSNS, Erdocia X, Hallett JP, Labidi J, Welton Tet al., 2017, An easy and reliable method for syringyl: guaiacyl ratio measurement, TAPPI JOURNAL, Vol: 16, Pages: 145-152, ISSN: 0734-1415

JOURNAL ARTICLE

Prado R, Weigand L, Zahari SMSNS, Erdocia X, Hallett JP, Labidi J, Welton Tet al., 2017, An easy and reliable method for syringyl:guaiacyl ratio measurement, TAPPI JOURNAL, Vol: 16, Pages: 145-152, ISSN: 0734-1415

JOURNAL ARTICLE

Weigand L, Mostame S, Brandt-Talbot A, Welton T, Hallett JPet al., 2017, Effect of pretreatment severity on the cellulose and lignin isolated from Salix using ionoSolv pretreatment, FARADAY DISCUSSIONS, Vol: 202, Pages: 331-349, ISSN: 1359-6640

JOURNAL ARTICLE

Brogans APS, Halleet JP, 2016, Solubilizing and Stabilizing Proteins in Anhydrous Ionic Liquids through Formation of Protein-Polymer Surfactant Nanoconstructs, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 138, Pages: 4494-4501, ISSN: 0002-7863

JOURNAL ARTICLE

De Gregorio GF, Prado R, Vriamont C, Erdocia X, Labidi J, Hallett JP, Welton Tet al., 2016, Oxidative Depolymerization of Lignin Using a Novel Polyoxometalate-Protic Ionic Liquid System, ACS SUSTAINABLE CHEMISTRY & ENGINEERING, Vol: 4, Pages: 6031-6036, ISSN: 2168-0485

JOURNAL ARTICLE

De Gregorio GF, Weber CC, Grasvik J, Welton T, Brandt A, Hallett JPet al., 2016, Mechanistic insights into lignin depolymerisation in acidic ionic liquids, GREEN CHEMISTRY, Vol: 18, Pages: 5456-5465, ISSN: 1463-9262

JOURNAL ARTICLE

Eminov S, Brandt A, Wilton-Ely JDET, Hallett JPet al., 2016, The Highly Selective and Near-Quantitative Conversion of Glucose to 5-Hydroxymethylfurfural Using Ionic Liquids, PLOS ONE, Vol: 11, ISSN: 1932-6203

JOURNAL ARTICLE

Eminov S, Filippousi P, Brandt A, Wilton-Ely JDET, Hallett JPet al., 2016, Direct Catalytic Conversion of Cellulose to 5-Hydroxymethylfurfural Using Ionic Liquids, INORGANICS, Vol: 4, ISSN: 2304-6740

JOURNAL ARTICLE

Giarola S, Romain C, Williams CK, Hallett JP, Shah Net al., 2016, Techno-economic assessment of the production of phthalic anhydride from corn stover, CHEMICAL ENGINEERING RESEARCH & DESIGN, Vol: 107, Pages: 181-194, ISSN: 0263-8762

JOURNAL ARTICLE

Gschwend FJV, Brandt A, Chambon CL, Tu W-C, Weigand L, Hallett JPet al., 2016, Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids, JOVE-JOURNAL OF VISUALIZED EXPERIMENTS, ISSN: 1940-087X

JOURNAL ARTICLE

Kuzmin O, Bordes E, Schmauck J, Hunt PA, Hallett JP, Welton Tet al., 2016, Solubility of alkali metal halides in the ionic liquid [C(4)C(1)im][OTf], PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 18, Pages: 16161-16168, ISSN: 1463-9076

JOURNAL ARTICLE

Kuzmina O, Hallett JP, 2016, Application, Purification, and Recovery of Ionic Liquids, ISBN: 9780444637130

© 2016 Elsevier B.V. All rights reserved. Application, Purification, and Recovery of Ionic Liquids provides a comprehensive overview of the usage of ionic liquids (IL). The book gives a description of the methods used for recovery and purification of ILs, a summary of the economic aspects of using ILs, and a review on the toxicity data of ILs. It is written for researchers, scientists, and engineers working with ILs, their properties, and usages. The book not only describes the chemical aspects, but the economic and environmental aspects as well, making it of particular interest to professionals applying this technology. Chapters written by scientists in academia and researchers in industry, ensuring coverage of both the scientific fundaments and industrial applications. A single source of information for a broad collection of recovery and purification methods. Provides information on using ionic liquids as green solvents. Includes economic aspects of recovery and reuse of ionic liquids.

BOOK

Kuzmina O, Hallett JP, 2016, Introduction, ISBN: 9780444637130

BOOK

Lancefield CS, Rashid GMM, Bouxin F, Wasak A, Tu W-C, Hallett J, Zein S, Rodriguez J, Jackson SD, Westwood NJ, Bugg TDHet al., 2016, Investigation of the Chemocatalytic and Biocatalytic Valorization of a Range of Different Lignin Preparations: The Importance of beta-O-4 Content, ACS SUSTAINABLE CHEMISTRY & ENGINEERING, Vol: 4, Pages: 6921-6930, ISSN: 2168-0485

JOURNAL ARTICLE

Matthews RP, Villar-Garcia IJ, Weber CC, Griffith J, Cameron F, Hallett JP, Hunt PA, Welton Tet al., 2016, A structural investigation of ionic liquid mixtures, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 18, Pages: 8608-8624, ISSN: 1463-9076

JOURNAL ARTICLE

McIntosh AJS, Griffith J, Gräsvik J, 2016, Methods of Synthesis and Purification of Ionic Liquids, Application, Purification, and Recovery of Ionic Liquids, Pages: 59-99, ISBN: 9780444637130

© 2016 Elsevier B.V. The synthesis and purification of ionic liquids is reviewed in this chapter. Brief discussions on the classical synthetic routes are included with the focus directed to those ionic liquids with novel moieties and synthetic routes, since the start of the 2000s. The likely impurities found in ionic liquids at each stage of synthesis are examined, the purification methods to remove them discussed, and the possible detection methods outlined.

BOOK CHAPTER

Omoruyi U, Page S, Hallett J, Miller PWet al., 2016, Homogeneous Catalyzed Reactions of Levulinic Acid: To -Valerolactone and Beyond, CHEMSUSCHEM, Vol: 9, Pages: 2037-2047, ISSN: 1864-5631

JOURNAL ARTICLE

Prado R, Brandt A, Erdocia X, Hallet J, Welton T, Labidi Jet al., 2016, Lignin oxidation and depolymerisation in ionic liquids, GREEN CHEMISTRY, Vol: 18, Pages: 834-841, ISSN: 1463-9262

JOURNAL ARTICLE

Brandt A, Chen L, van Dongen BE, Welton T, Hallett JPet al., 2015, Structural changes in lignins isolated using an acidic ionic liquid water mixture, GREEN CHEMISTRY, Vol: 17, Pages: 5019-5034, ISSN: 1463-9262

JOURNAL ARTICLE

Cadogan SP, Hallett JP, Maidand GC, Trusler JPMet al., 2015, Diffusion Coefficients of Carbon Dioxide in Brines Measured Using C-13 Pulsed-Field Gradient Nuclear Magnetic Resonance, JOURNAL OF CHEMICAL AND ENGINEERING DATA, Vol: 60, Pages: 181-184, ISSN: 0021-9568

JOURNAL ARTICLE

George A, Brandt A, Tran K, Zahari SMSNS, Klein-Marcuschamer D, Sun N, Sathitsuksanoh N, Shi J, Stavila V, Parthasarathi R, Singh S, Holmes BM, Welton T, Simmons BA, Hallett JPet al., 2015, Design of low-cost ionic liquids for lignocellulosic biomass pretreatment, GREEN CHEMISTRY, Vol: 17, Pages: 1728-1734, ISSN: 1463-9262

JOURNAL ARTICLE

Giarola S, Romain C, Williams CK, Hallett JP, Shah Net al., 2015, Production of phthalic anhydride from biorenewables: process design, 12TH INTERNATIONAL SYMPOSIUM ON PROCESS SYSTEMS ENGINEERING AND 25TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PT C, Vol: 37, Pages: 2561-2566, ISSN: 1570-7946

JOURNAL ARTICLE

Boot-Handford ME, Abanades JC, Anthony EJ, Blunt MJ, Brandani S, Mac Dowell N, Fernandez JR, Ferrari M-C, Gross R, Hallett JP, Haszeldine RS, Heptonstall P, Lyngfelt A, Makuch Z, Mangano E, Porter RTJ, Pourkashanian M, Rochelle GT, Shah N, Yao JG, Fennell PSet al., 2014, Carbon capture and storage update, ENERGY & ENVIRONMENTAL SCIENCE, Vol: 7, Pages: 130-189, ISSN: 1754-5692

JOURNAL ARTICLE

Chen L, Sharifzadeh M, Mac Dowell N, Welton T, Shah N, Hallett JPet al., 2014, Inexpensive ionic liquids: [HSO4](-)-based solvent production at bulk scale, GREEN CHEMISTRY, Vol: 16, Pages: 3098-3106, ISSN: 1463-9262

JOURNAL ARTICLE

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