Page 165 - CW E-Magazine (24-12-2024)

Special Report

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

Processes and Products

Renewable Raw Materials

glucose to EMF with record yields. This
strategy can be expanded to cellobiose
and starch. The tin phosphate is having
large-pores bearing strong Lewis acidic
site and AIL was 1-(4-sulfobutyl)-3-
methylimidazolium chloride. (J. Cata-
lysis, 2024, 437, Sep., 115679;
DOI:10.1016/j.cat.2024.115679).
Biodegradable
copolyesters derived from
2,5-thiophenedicarboxylic acid
(TDCA) for high gas barrier
packaging application

TDCA is a bio-based building block
for aromatic-aliphatic copolyesters. Q.
Wang et al have synthesised poly(pro-
Cellulosic ethanol production Then glucose was subjected to yeast pylene adipate-Co-TDCA) via a two-
from high-solids corncob fermentation which produced maximum step melt polycondensation. These
residues by simultaneous ethanol concentration of about 59-gm copolyesters have many desirable
properties. DFT calculation were done.
saccharification and per litre after 48 hours. This study esta- (ACS Sustainable Chem. Eng., 2024;
fermentation on a pilot scale blishes the scale-up. (ACS Sustainable DOI: 10.1021/acssuschemeng.4C03611).
Resour. Manage., 2024; DOI: 10.1021/
C-H. Hu et al have studied the recycling acssusresmgt.4C00208). Furfural (F)
potential of corncob residues from xy- Tandem catalytic conversion
lose production to renewable energy of glucose and cellobiose Continuous production of
cellulosic ethanol. These authors carried to 5-ethoxymethylfurfural 1,2-pentanediol (PD) from
out enzymatic digestion at three different (EMF) with record yields furfuryl alcohol (FA)
scales of 100 gm, 4kg, and 2 tonnes, [Furfural represents a key renewable
with 25% dry solids yielding consistent Q. Hou et al have reported that the synergy raw material to make a variety of pro-
glucose release of over 130-gm per litre of tin phosphate with acidic ionic liquid ducts and this also proves the versatility
which points to industrial utilisation. (AIL) enables tandem conversion of of catalysis. This column has covered
many papers on this subject.]
A.S. Nimbalkar et al have reported a
highly stable bimetallic Ni-Sn alloy cata-
lysts for the title reaction in a selective
way. DFT was adopted. The mechanism
involves dehydrogenation-scission.
Continuous conversion of FA gave
91% yield of PD. The catalyst could be
regenerated. (Green Chem., 2024; DOI:
10.1039/D4GC02757D).

Chemical Weekly December 24, 2024 165

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