Page 178 - CW E-Magazine (24-10-2023)

Special Report

Purification of p-cresol (pc), Sustainable Chem. Eng.; DOI:10.1021/ kinetics of adsorption. This is to respond
o-cresol (oc), m-cresol (mc) and acssuschem.eng.3C01207]. to the question: ‘Is equilibrium pure
2,6-xylenol from the quaternary Effect of zeolitic imidazolate gas adsorption data suitable to predict
mixture by three-phase crystal- mixed-gas separation performance’.
lisation framework topology on the Process modelling was done and have
purification of H from coke concluded that pure gas kinetic measure-
2
L-D. Shiau has reported the title separa- oven gas (COG) ments are suffi cient to predict mixed-gas
tion of considerable interest. Here three- [The valorisation of COG and blast behaviour. Useful data are provided for
phase crystallisation (TPC) was applied furnace gas in steel plants is attracting temperature from 20-80°C and pressure
in a series of three-phase transformations attention and this column has covered below 100 KPa. [Ind. Eng. Chem. Res.,
this subject.] 2023; DOI: 10.1021/asc.iecr.3C01085].

X. Huang et al have worked on the title A molecular model for under-
subject and have used molecular simu- standing the membrane sepa-
lation to model the system having six ration of Li /Mg 2+
+
gases and the effect of ZIF topology on the [The recovery of Li from different ores,
separation performance. ZIF-8 and ZIF-11
by decreasing temperature and reducing were compared. The adsorption of CO is including lean ores, is attracting a lot
2+
2
pressure. This combines melt crystalli- strongly affected by polarizability of the of attention and the presence of Mg in
sation and vaporisation to produce the structure. The adsorption of CH , CO, N , much higher amounts needs attention.]
2
4
desired results. Other related aspects are and O is strongly dependent on their pore Y. Chen et al have emphasized the need
2
discussed. [Ind. Eng. Chem. Res., 2023; size. This study should help in selecting to have high purity LiCl and salt-lake
DOI: 10.1021/acs.iecr.3C00711]. high-performance ZIFs for H purifi cation. brines have a high mass ratio of Mg /Li .
2+
+
2
Scalable room-temp synthesis [ACS Sustainable Chem. Eng., 2023; DOI: This separation is possible with nano-
of a H -sieving zeolitic mem- 10.1021/acssuschemeng.2C07006]. filtration, which is also environmen-
tally friendly. A deep understanding
2
brane on a polymeric support Adsorption of ethylene and is required to understand the competi-
ethane onto Mordenite, Zeolite tive transport of Li /Mg ions in the
+
2+
X. Duan et al have referred to zeo- 13X, and ZJU-740
nanoscale. Models were prepared for
litic membranes as those which have [This column has covered adsorptive charged nanochannels. This study pro-
excellent hydrothermal stability. These separation of ethane/ethylene mixture vides an effective approach to select the
authors have reported the room-tempera- to get polymer grade ethylene and this title separation. [Ind. Eng. Chem. Res.,
ture fabrication of H -sieving zeolitic subject continues to affect attention.]
2
membranes. The resulting zeolitic fi lms 2023; DOI: 10.1021/acs.iecr.3C00136].
have attractive H /CO and H /CH sepa- S.J. Edens et al have made experimental Modelling the required mem-
2
4
2
2
rations at elevated temperatures. [ACS measurement of pure and mixed-gas brane selectivity for NO
-
3
recovery from effl uent also con-
taining Cl , while saving water
-
D. Chinello et al have worked with hydro-
phobic membranes and have exploited diffe-
rence in ion dehydration energy. The aim
is also to reduce water consumption. The
ratio of NO to Cl matters. The strategy
-
-
3
was employed to a real-life process, i.e.,
NO recovery from effl uent wastewater
-
3
of a fertiliser production. Good selecti-
vity is reported and strategies to develop
membranes of signifi cant higher selec-
tivity are briefl y discussed. [Chem. Eng.
Res. Des., 2023, 193, May, 409-419;
DOI:10.1016/j.Chered.2023203.038].
178 Chemical Weekly October 24, 2023
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