Page 171 - CW E-Magazine (8-10-2024)

Special Report

A rapid wrap-up of what’s new in Operations,

Processes and Products

Renewable Raw Materials

Unravelling lignin (L) ex-
traction: molecular dynamics
insights into effective biomass
valorisation using p-toluenesul-
phonic acid (PTSA) / solvents
system

J. Zhang et al have used the title strategy
to reveal the essence of condensation
during the pre-treatment of biomass.
Diols are useful in acidic hydrotropic
solution; 1,4-butanediol and PTSA can
extract native L under mild conditions.
Conversion of cellulose via hydrolysis
into glucose occurs. (Green. Chem.,
2024: DOI: 10.1039/D3GC04040B).

Hydrogenolysis of furfuryl alco-
Unsaturated Fe-Q-Ti struc- Temperature-programmed hol (FA) over CuCeMgAl mixed
5C
ture with enhanced C-H and alkaline thermal treatment metal oxide catalysts derived
C-C bond activation ability for of lignocellulosic biomass to from layered double hydroxides
selective oxidation of glycerol produce fractionated H with
(G) to glycolic acid (GA) production capacity 2 Z. Wang et al have come out with a use-
[GA is gaining importance for biomedi- G. Liu et al have reported the title process, ful title catalyst which allows selective
cal applications via polymer/co-polymer incorporating dehydrogenation below conversion of FA to 1,2-pentanediol
and now even possibility of making bio- 250°C and rapid alkalinisation at 600°C selectively. The catalysts were charac-
degradable poly(terephthalic – glycolic terised by different techniques like XRD,
acid) copolyesters.] BET, XPS, TPR and TPO. (Reaction
Chem. Eng., 2024: DOI: 10.1039/
U. Meng et al have explained the mecha- D4RE00070F).
nism of the title oxidation, which also
involves C-C cleavage. GA selectivity Hydrodeoxygenation of fatty
is reported at 59%. (ACS Sus. Chem. to produce fractionated H with a high esters to fatty alcohols
2
Eng., 2024; DOI: 10.1021/acssusche- production capacity of 46 mmol per gm
meng.4C02927). of cellulose. H had a purity of 98% and Y. Cui et al have reported core-shell
2
complete conversion of cellulose Al O @Cu Zn -LDO catalyst made via
2
1
2
3
and hemicellulose is realised. These the in situ growth of CuZnAl-LDHs
authors stressed the importance of on Al O microspheres, which allow
2
3
fast heating and steam-promoted the conversion of methyl laurate to
alkalinisation reactions as being lauryl alcohol at 95% conversion and
essential for the conversion of char selectivity of 98% at 240°C and 4 MPa
with high H production. (ACS Sus. H pressure. (ACS Sus. Chem. Eng.,
2
2
Chem. Eng., 2024: DOI: 10.1021/ 2024; DOI: 10.1021/acssuschemeng.
acssuschemeng.4C02652). 4C00148).
Chemical Weekly October 8, 2024 171
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