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Lignin depolymerisation to phenol with supercritical water as a medium

Hoekstra, S.C. (2012) Lignin depolymerisation to phenol with supercritical water as a medium. Bachelor's Thesis, Chemistry.

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In this bachelor assignment the feasibility of phenol production from lignin depolymerisation with supercritical water is determined. 850kg of phenol is produced per hour from 20 tonnes of lignin which is the amount of available lignin in the Kvarnsveden paper mill in Sweden. A model is made where phenol is produced and purified from lignin, the lignin is normally used as fuel in paper mills and provides about 40% of the energy to the paper process. 179GJ/tonne phenol or 42.2 MW is needed to fill the energy gap of the paper and phenol process. Coal worth €570 is needed to fill this energy gap, a tonne of phenol is worth about €1225, since the main costs are the energy costs it can be said that the process can be feasible and there still is potential for improvement with other substances produced in the process.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Chemistry
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 07:50
Last Modified: 15 Feb 2018 07:50

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