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Volume 8, Issue 2 (Suppl) Chem Sci J 2017
ISSN: 2150-3494 CSJ, an open access journal Euro Chemistry 2017
May 11-13, 2017
May 11-13, 2017 Barcelona, Spain
4th European Chemistry Congress
CO2 utilisation: Waste or resource for chemical industry
Ozge Yuksel Orhan and Erdogan Alper
Hacettepe University, Turkey
C O2 emissions into atmosphere is a global concern and a recent theoretical model provides a quantitative approach for its
connection with global warming and climate change. CO2 is potentially a suitable resource of carbon which can partially replace
oil and gas in many synthetic applications. Benefits can also extend to safety considerations since it is not toxic. It can replace certain
toxic building blocks such as CO and phosgene in several commercially important processes, such as methanol or polyurethane
manufactures. In addition, it can be used as a viable technological fluid with distinct advantages over other possible solutions in
applications such as enhanced oil recovery and supercritical solvent. In near future, the use in carboxylation processes (synthesis of
carbonates, carbamates and carboxylates, including cyclic compounds in both monomeric and polymeric forms) appears to be the
most likely synthetic applications. In these cases, CO2 serves as both carbon and oxygen sources. Replacing CO for making acrylic acid
and use as a mild oxidant are other interesting applications. Reduction by catalytic and electrocatalytic hydrogenation necessitates
energy from non-fossil fuels and solar and renewable energy resources should then be incorporated. The photocatalytic reduction
of CO2 in water under solar light irradiation, which is known as artificial photosynthesis, is a potential option that would increase
carbon recycling. A unique aspect of this paper is the exploitations of reactions of CO2 which stems from existing petrochemical
plants-with the commodity petrochemicals (such as, methanol, ethylene and ethylene oxide) produced at the same or nearby complex
in order to obtain value-added products while contributing also to CO2 fixation simultaneously. Exemplifying worldwide ethylene
oxide facilities, it is recognized that they produce about 3 million tons of CO2 annually. Such a CO2 resource, which is already
separated in pure form as a requirement of the process, should best be converted to a value-added chemical there avoiding current
practice of discharging to the atmosphere.
Biography
Ozge Yuksel Orhan obtained her Ph.D. in Chemical Engineering from Hacettepe University, Turkey, in December 2014. Her thesis is entitled “The Absorption
Kinetics of CO2 into Ionic Liquid-CO2 Binding Organic Liquid Hybrid Solvents”. Currently, she is a Research and Teaching Assistant at Chemical Engineering
Department of Hacettepe University. Her research topics have dealt with the study of carbon dioxide capture by novel solvents. Erdogan Alper is a Professor at the
Chemical Engineering Department of Hacettepe University in Ankara, Turkey. He obtained his BSc (Honours) (First Class) from Birmingham University, England
(1968), and earned his PhD from Cambridge University (1972). In 1977–1978, he was an Alexander von Humboldt fellow at Hannover University, Germany, and
received Turkish Scientific and Technological Research Council prize in Engineering in 1982. His research areas include carbon dioxide capture by innovative
solvents, fuel cell modelling by CFD, petroleum refining and petrochemical technologies. He published 4 books and around 150 research papers in cited journals.
Ozge Yuksel Orhan et al., Chem Sci J 2017, 8:2(Suppl)