Produced water is a major waste and environmental concern in the oil gas industry, since it contains dispersed dissolved compounds, which may harm aquatic environment. Thus, focus on offshore treatment of produced required. Current methods include hydrocyclones clarifiers that cannot achieve full abatement oily contaminants. Here we propose novel thermocatalytic degradation using thermocatalyst...

This article presents an investigation on the recovery of CO2 from combustion gases cement industry through a carbonation route in order to obtain Calcium Carbonate Nanoparticles (CCnP), which could find application as either polymer or fillers. Two different experimental setups, Continuously Stirred Bubbling Reactor (CSBR) and Packed Bed (PBR), were studied improve final product enhance proces...

anaerobic treatment methods are more suitable for the treatment of concentrated wastewater streams, offer lower operating costs, the production of usable biogas product. the aim of this study was to investigate the performance of an anaerobic fluidized bed reactor (afbr)-aerobic moving bed bio reactor (mbbr) in series arrangement to treat currant wastewater.the bed materials of afbr were cylind...

We compare computational simulations of the flow of air through a packed column containing spherical particles with experimental and theoretical results for equivalent beds. The column contained 160 spherical particles at an aspect ratio N = 7.14, and the experiments and simulations were carried out at particle Reynolds numbers of (Redp = 700 − 5000). Experimental measurements were taken of the...

Microkinetics models for the partial oxidations of ethylene and of methanol on silver catalysts are coupled with computational fluid dynamics and implemented in a randomly packed bed of 120 spherical particles. The model includes interactions of the elementary reaction steps and transport inside the particles and the flow field. The effects of using the full implementation of the microkinetics ...

Palladium-based catalytic membrane reactors (CMRs) effectively remove H₂ to induce higher conversions in methane steam reforming (MSR) and water-gas-shift reactions (WGS). Within such a context, this work evaluates the technical performance of a novel CMR, which utilizes two catalysts in series, rather than one. In the process system under consideration, the first catalyst, confined within the ...

The treatment of gaseous trichloroethylene (TCE) by biotic and abiotic removal mechanisms in a sequential (biological/chemical) reactor system was investigated. The reactor system consisted of a granular anaerobic mixed culture packed biofilter followed by an elemental iron metal (Fe(0)) packed column in series. The effect of empty bed contact time (EBCT) and influent TCE concentration on the T...

The hydrodynamics of a three-phase micro-packed bed reactor and its effect on catalysed benzyl alcohol oxidation with pure oxygen were studied in a silicon–glass microstructured reactor. The microreactor was operated at 120 °C and 1 barg and contained a channel with a 300 μm 600 μm cross-section, packed with 1 wt% Au–Pd/TiO2 catalyst, 65 μm in average diameter. Improvements in the conversion of...