A feasibility study of a conventional fixed-bed reactor and packed-bed membrane (PBMR) in distributor configuration is carried out for the selective oxidation methanol to oxygenates dimethoxymethane methyl formate on VOx/TiO2 catalyst. Kinetic experiments provided reaction network reliable kinetic model six main reactions involved. The PBMR offers significant advantages potential formation both...

Effluent from a fish tank with Nile tilapia (Oreochromis niloticus) was treated in system of two parallel fixed-bed anaerobic reactors followed by suspended stirred, anoxic reactor for solids, organic matter and nitrogen removal. Microbial community structure compared between the an enriched anammox culture originated sludge using PCR (Polymerase Chain Reaction) DGGE (Denaturing Gradient Gel El...

The synergism of food waste associated with swine manure can provide an increase in biogas production, besides promoting greater stability the anaerobic co-digestion process. To verify this effect, tests were performed two reactors, one agitation, and other without agitation. In both systems, gasometers used to measure production experiment lasting hydraulic retention times (HRT). On each feedi...

background: the modeling aims to simulate or optimize a process in physical, chemical or biological environments and the derived model will provide a considerable assistance to generate data and predict unknown condition, in case of sufficient suitability. unsuitable disposal and elimination of waste tires have polluted the environment and human life areas, it also have caused removal of a huge...

Packed bed reactor finds wide application in wastewater treatments. Packed bed reactors can be employed for aerobic and anaerobic biological treatment of wastewater. They can also be used for physico-chemical treatments such as activated carbon adsorption of various pollutants from wastewater. Packed beds with up flow and down flow mechanisms are widely used for wastewater treatment. Use of flu...

This paper reports the findings of a FP7 project (DEMCAMER) that developed materials (catalysts and membranes) and new processes for four industrially relevant reaction processes. In this project, active, stable, and selective catalysts were developed for the reaction systems of interest and their production scaled up to kg scale (TRL5 (TRL: Technology Readiness Level)). Simultaneously, new mem...

In a fixed bed of porous catalyst pellets, there are developed two composition and temperature fields, one in the fluid phase and the other one at the level of solid pellets. The objective of this work is to evaluate, by numerical simulation, the unsteady state behavior of a catalyst pellet in typical operating conditions for methanol synthesis reactors. The process kinetics was described by th...