Title:
Qualitative and Quantitative Influence of Ammonia and Phenol on FAME in Water Emulsion Separation Out of Wood Gas Scrubbers
Author(s):
Strigl, M., Hofmann, A., Huber, M.B.
Document(s):
Paper
Abstract:
The aim of this work is an optimization of the gasification of biomass, especially the gas cleaning with a biodiesel scrubber. The separation of FAME and water suspensions in biodiesel scrubbers are influenced from the used FAME quality and the type and concentration of the typical gas impurities like ammonia and tars. In this work, the results from an earlier work should be reproduced and the effects of reactive impurities like ammonia and phenol should be quantified. With the use of new charges of FAME, the strong emulsion building effects of the earlier work could not be shown. The reason was found in the relation between the concentration of hydrocarbons and esters and with this, in the average chain length of the used FAME. The higher the chain lengths of the used FAME, the more stable are the suspensions with water in presence of ammonia. This effect could be explained with the building of quarternary ammonia bases, which are the more effective the higher the difference in polarity is. An influence of phenol in suspension separation processes could not be clearly excluded, but the major effects can attributed to the interaction of ammonia with the FAME, depending on the chain length of the fatty acids.
Keywords:
ammonia, biodiesel, emulsions, gas cleaning
Topic:
R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals
Subtopic:
Gasification for power, CHP and polygeneration
Event:
20th European Biomass Conference and Exhibition
Session:
2BV.2.18
Pages:
1081 - 1085
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-2BV.2.18
Price:
FREE
