Themed collection 2019 Reaction Engineering in China

Impedance-based in situ spectroscopy allows direct tracking of the mobile active sites and reaction intermediates in NH₃-SCR over zeolite catalysts.

Metal-exchanged zeolites with small pore sizes have attracted much attention in recent years due to their application in the selective catalytic reduction (SCR) of NOx in diesel engines.

The first flow-based synthesis and screening platform that integrates both microflow chemistry and protein-directed dynamic combinatorial chemistry into a single modular unit was disclosed and validated by a case study.

Polysulfates and polysulfonates were prepared in a simplified process through the reaction between aryl phenols and aryl fluorosulfates.

An ultra-low content of octahydrophenazine (<1 ppm) was reached in the Beckmann rearrangement of cyclohexanone oxime to yield ε-caprolactam.

A Pickering interfacial biocatalyst system with a high water/oil volume ratio, super-stability, and easy recyclability is presented for biphasic enzyme catalysis.

Separation intensification of a lanthanide pair obtained through hydrodynamic and kinetic approaches in microfluidics.

Cascade reactions, i.e., biosynthesis of OMPs and chemical modification of hydrophobic OMPs with water-soluble MSG, are carried out successfully by IPTC.

First-time experimental demonstration of simultaneous thermolysis of CO₂ and H₂O in a solar-driven membrane reactor.

The reaction kinetics of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) catalyzed δ-valerolactone polymerization was determined using a gas-driven droplet reactor.

Enzyme immobilized reusable millimeter-sized beads were prepared through covalently immobilizing Candida antarctica lipase B onto emulsion-templated porous beads.

A highly active palladium-based heterogeneous catalyst with excellent activity for the hydrogenation of oximes to form amines was prepared.

Highly efficient catalyst-free continuous-flow reaction and recycle process for the synthesis of deoxyarbutin.

A novel, simple, power-saving and effective method for the synthesis and scale-up of cationic water-soluble polyelectrolytes represented by dimethyldiallylammonium chloride (DMDAAC) with commercially available reagents in a two-step continuous flow system has been developed.

An environmentally friendly microplasma-based method is applied to produce crystalline lanthanide doped nanophosphors of controllable photoluminescence properties.

In microwave-assisted reactive distillation, the selective heating of the water content at the liquid–vapour interface intensifies the evaporation of water molecules.

The hydrodynamic characteristics of gas–liquid two-phase flow can significantly affect the performance of gas–liquid–solid microreactors.

The alcohol is fed as vapor within the bubbles which means alcohol is always in deficit, providing an opportunity to convert an equilibrium limited reaction to nearly irreversible one.

A comprehensive experimental and kinetic study on the reaction of DPT in nitric acid has been performed. The overall yield of the stepwise method for preparing HMX was up to 82.7%, which is a landmark breakthrough for the preparation of HMX from DPT.

Metal-free catalytic oxidation of benzylic alcohols for benzaldehyde and process intensification by using a rotating packed bed reactor were demonstrated.

Structured zeolite/SiC foam catalysts provide alternative solutions to mass and heat transfer limited chemical transformations for process intensification, exemplified by cracking reactions.

The kinetics-assisted method is simple yet effective in discriminating Ru edge atoms as the dominant active sites for the reaction.

Different numbered-up capillary microreactor systems were assembled with commercially available parts for homogeneous processes with significant variation of fluid properties (e.g., free radical polymerization), and statistical analysis was performed to reveal its flow distribution performance.

A solvent-free organocatalyzed process for the transesterification of dimethyl carbonate (DMC) with 1,2-diols under scalable continuous flow conditions.