Chemistry Reference
In-Depth Information
consistency and quality of the co-product. The successful production of
chemicals from biodiesel glycerine would have an added economic and
environmental value.
A number of relevant processes and transformations reported in literature
(2005-2013) have been the objects of the current work (Figure 6.16). The study
of these products and application has constituted the basis for suitable chemical
strategies developed for the coproduct generated in biofuel production for a
number of researchers.
In spite of the limitations of biodiesel glycerine as a feedstock for chemical
conversions, much research has been conducted to establish suitable, selective
catalytic routes towards glycerol products. Successful examples of glycerine in
robust chemical processing have been developed, such as Solvay's process
Epicerol
s
in the production of epichlorohydrin,
129
based on a chlorination
process using hydrochloric acid the hydrogenolysis of crude glycerine to
1,2-PDO using Cu catalysts,
130
as well as the biosynthesis of 1,3-propanediol,
butanol
118
and succinic acid, already mentioned. The following sections
describe a number of chemistries, explored by Brocklesby Ltd. for biodiesel
glycerine (Scheme 6.7).
Dehydration and oligomerisation of glycerol: one of the main features of the
chemistry of glycerol is its decomposition at high temperature and acid
conditions, forming various products, acrolein being one of the most relevant.
d
n
9
r
3
n
g
|
0
d
y
y
f
n
n
3
.
Figure 6.16
Strategy for glycerine at Brocklesby; chemistries, target products and
applications.
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