Abstract In recent times there has been a great deal of interest in the conversion carbon dioxide into more useful chemical compounds. On other hand, translation these developments electrochemical reduction from laboratory bench to practical scale remains an underexplored topic. Here we examine some major challenges, demonstrating promising strategies towards such scale-up, including increased ...

Flow Reactors In article number 2201845, Shinae Jun, Milad Abolhasani, and co-workers present a modular flow chemistry strategy for intensified multi-stage manufacturing of metal-free quantum dots (QDs). The plug-and-play platform enables one order magnitude faster InP QD synthesis times than batch reactors by utilizing tunable time- temperature-to-distance transformation in flow.

The natural convection flow over a surface embedded in saturated porous media is encountered in many engineering problems such as the design of pebble-bed nuclear reactors, ceramic processing, crude oil drilling, geothermal energy conversion, use of fibrous material in the thermal insulation of buildings, catalytic reactors and compact heat exchangers, heat transfer from storage of agricultural...

A wide-ranging review is presented on the most focal aspects of gas-liquid-solid reactors to discuss fresh headways towards understanding slurry bubble column reactors' behavior. In more detail, in this critical review, published works' findings concerning effects solid particles characteristics (size, concentration and density) volumetric mass transfer coefficient, liquid-side gas-liquid inter...

At high water stages, obstacles (submerged and particularly emerged vegetation) in the flood plains of a river contribute to the flow resistance and hamper the conveyance capacity. In particular the elevated vegetated parts are expected to play an important role. The objective of this research work is to determine the form drag due to vegetated oblique weir-like obstacles. Experiments have been...

alkaline hydrolysis of ethyl acetate is essentially an irreversible and second order reaction. industrial importance of the reaction product, sodium acetate, necessitate for process improvement in terms of maximum conversion and economical usage of raw materials. statistical design of experiments was utilized to enhance conversion in both batch and plug flow reactors.a full two level factorial ...

This study examined the effectiveness of an open channel, low pressure (LP), ultraviolet (UV) reactor for water treatment in a low head (LH) recirculating aquaculture system (RAS). Currently available UV reactors use high pressure pumps and submerged bulbs. The reactor in this study makes use of the head gained by the water recirculation of the LH-RAS without the need for additional pumps, whil...

upflow anaerobic sludge blanket (uasb) reactors have been widely used for treatment of industrial wastewater. in this study, performance of a lab-scale up-flow anaerobic sludge blanket (uasb) reactor, treating a chemical synthesis-based pharmaceutical wastewater, was evaluated under different operating conditions. a (p.e) pipe with a diameter of 250 mm and total height of 120 cm and effective h...