The iron bath gasifier studied in this paper is a new type of reactor for handling organic solid waste, which the complex transport phenomena comprising high temperature, multiphase flow, mixing, and chemical reaction takes place. It great significance to study melt’s flow mass transfer behavior reactor. influence different process parameters on mixing molten pool was by water modeling experime...

This third volume of Perspectives in Reaction Engineering and Catalysis presents articles by world experts on various aspects that are essential for the intensification of chemical processes. These perspective articles demonstrate that rigorous modelling of the reaction kinetics of increasingly complex systems, and of non-uniform multiphase transport phenomena, as well as the inclusion of trans...

Channel-fouling is a pervasive problem in continuous flow chemistry, causing poor product control and reactor failure. Droplet chemistry, in which the reaction mixture flows as discrete droplets inside an immiscible carrier liquid, prevents fouling by isolating the reaction from the channel walls. Unfortunately, the difficulty of controllably adding new reagents to an existing droplet stream ha...

The main objective of this paper is to cover the first stage of a real time optimization project for a cyclohexanol production multiphase reactor. Firstly, the optimization problem is stated and the upper layer of a two layers real time optimization approach is solved off-line. Some equations of the steady state process model show to yield a difficult NLP. The mathematical steady state model is...

Recent progress in bottom-up tissue engineering has demonstrated that three-dimensional tissue constructs with predefined architectures may be obtained by assembling shape-controlled hydrogels in multiphase reactor systems. Driven by the hydrophobic force between gel unit and liquid media, highly ordered hydrogel clusters can be formed. Many complex factors occurring at microscale (i.e., gel un...

The miniaturization of chemical and biological processes in microfluidic devices and bioarrays is a major technological achievement. Microchips performing multiphase material synthesis operations could be a future step in this trend of miniaturizing technology. Here we show how electrically controlled chips can be used for the synthesis and manipulation of new types of particles with advanced s...

Recent experiments have shown that silane pyrolysis in a gas-solids fluidized bed may be an attractive way to produce ultra-pure silicon. Such a process would possess the general advantages of fluidized bed technology, namely, good contacting, thermal homogeneity, thorough mixing of particles, easy solids handling, and low pressure drop. Such a fluidized bed reactor is simulated using the two-f...

BACKGROUND A promising route to renewable liquid fuels and chemicals is the fermentation of synthesis gas (syngas) streams to synthesize desired products such as ethanol and 2,3-butanediol. While commercial development of syngas fermentation technology is underway, an unmet need is the development of integrated metabolic and transport models for industrially relevant syngas bubble column reacto...

Multiscale modeling is a tool aimed at combining mathematical descriptions of different process scales into a single, properly tailored scale integration hierarchy allowing for reliable modeling and simulation. This concept has already been successfully applied in deriving accurate state variable distributions for processes that exhibit full spatiotemporal variation and thus do not allow for th...

In this work, a novel image-based method is presented to characterize the heat and mass transfer rates in Hele-Shaw microfluidic reactor. A Fourier transform infrared (FTIR) spectrometer used transmission mode combination with an (IR) camera simultaneously measure molar concentration thermal fields chip within few seconds. classical exothermic NaOH + HCl ? NaCl H2O chemical reaction produce mul...