A4 Conference proceedings

Catalytic Partial Wet Oxidation of Lignin for Production of Chemicals


Publication Details
Authors: Abayneh Demesa, Arto Laari, Mika Sillanpää
Publication year: 2015
Language: English
JUFO-Level of this publication: 0
Open Access: Not an Open Access publication

Abstract

Interest in renewable feedstock for the chemical industry has increased
considerably over the last decades, mainly due to environmental concerns and
foreseeable shortage of fossil raw materials. Lignocellulosic biomass is an
abundant source of bio-based raw material that is readily available and can be
utilized as an alternative source for chemical production. Lignin accrues in enormous
amounts as a by-product of the pulping process in the pulp and paper industry. It is estimated that 70 million tons of lignin is annually
processed worldwide from the pulp and paper industry alone. Despite its
attractive chemical composition, lignin is still insufficiently exploited and
mainly regarded as bio-waste. Therefore, an environmentally benign process that
can completely and competitively convert lignin into different value-added
chemicals is needed to launch its commercial success on industrial scale. Partial wet oxidation by molecular oxygen has received
increased attention as a potential process for production of chemicals from
biomass wastes. In this paper, the production of chemicals by catalytic partial
wet oxidation of alkali lignin is investigated. The factors influencing the
different types of products formed during the partial oxidation of lignin and
their yields and compositions are discussed. From practical viewpoint, the study has both social and environmental
benefits since it reduces waste discharges to the environment, increases the
efficiency of the usage of biomass in pulp and paper industry, increases the
energy efficiency of chemical industry in global terms by reducing the amount
of fossil raw materials used for chemical production, and it helps
to develop and design an efficient and economically viable process for chemical
production from lignocellulosic biomass.


Last updated on 2017-31-10 at 18:23

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