Inside Back Cover: Highly Enhanced Aromatics Selectivity by Coupling of Chloromethane and Carbon Monoxide over H‐ZSM‐5 (Angew. Chem. Int. Ed. 13/2022)

Abstract

The coupling of CH 3 Cl CO … …over H-zeolites is an efficient reaction strategy for the transformation of methane into aromatics,w hich ensures the sustainable development of natural gas in an environmental pathway.Intheir Research Article (e202114953), Hongchao Liu, Wenliang Zhu, Zhongmin Liu, and co-workers report that high aromatics and BTX (benzene,toluene, and xylene) selectivity can be achieved with complete conversion of CH 3 Cl over HZSM-5, following anew aromatization mechanism.

Highly Selective Carbonylation of CH3Cl to Acetic Acid Catalyzed by Pyridine‐Treated MOR Zeolite

“…In contrast, BAS at 12 MR channels was responsible for forming of hydrocarbons from CH 3 Cl or coupling CH 3 Cl with CO [6, 23] . Notably, methyl cyclopentenone is observed over MOR‐12, which revealed BAS in the 12 MR channel also possessed the ability of coupling CH 3 Cl with CO according to the previous literature [14, 19a,d] . As shown in Figure 3d and Table S4, the amount of coke over MOR‐12 (3.92 wt %) is higher than that over MOR‐8 (0.46 wt %).…”

“…These results agreed with the findings from reactions between CO and small-molecule compounds. [14,19] Therefore, we deduced that the reaction of CO and CH 3 Cl- derived species might also be a significant step in forming acetic acid.…”

“…60 % BTX (benzene, toluene, and xylene) selectivity. [14] Unfortunately, only a few investigations focusing on the conversion of methyl halide to oxygenates, especially for acetic acid, have been reported so far. [6] Thereinto, Zhou et al and Bao et al studied the carbonylation of methyl halide to acetic acid over RhCl 3 -PPh 3 -KI catalyst, achieving up to 99 % acetic acid yield.…”

“…Recently, our team reported a novel route about aromatics production from the coupling of CH 3 Cl and CO, obtaining up to 82.2 % aromatics selectivity and ca. 60 % BTX (benzene, toluene, and xylene) selectivity [14] . Unfortunately, only a few investigations focusing on the conversion of methyl halide to oxygenates, especially for acetic acid, have been reported so far [6] .…”

Highly Selective Carbonylation of CH3Cl to Acetic Acid Catalyzed by Pyridine‐Treated MOR Zeolite

“…These results agreed with the findings from reactions between CO and small-molecule compounds. [14,19] Therefore, we deduced that the reaction of CO and CH 3 Cl-…”