Methanol-to-olefins is a promising process that has attracted the attention of many research groups in last years. Zeolites are primary catalyst for this process, and SAPO-34 one most used because its high selectivity toward C2–C4 olefins. As drawback, it deactivates quickly forces to work alternately using reaction regeneration cycles. The mechanism by which still on debate, further needs be d...

in this paper, optimization and control of a tubular reactor for thermal bulk post-polymerization of styrene have been investigated. by using the reactor mathematical model, static and dynamic simulations are carried out. based on an objective function including polymer conversion and polydispersity, reactor optimal temperature profile has been obtained. in the absence of model mismatch, desire...

Retroviral pseudotype vector, derived from the murine leukaemia virus carrying the HIV-1 envelop protein MLV (HIV-1) were produced using a integrated, continuous cultivation and harvest process. A 200ml fix bed reactor was used to cultivate the anchorage dependent packaging cell line on macro-porous carriers until the maximum glucose uptake was reached. After starting the cultivation in batch m...

This work investigates the pros and cons of using the Electrical Capacitance Tomography (ECT) for imaging and quantitative characterization of flow dynamics in a four-phase trickle-bed reactor. ECT use is increasing in non-invasive imaging thanks to its low cost and convenience compared to nuclear ionizing, non-ionizing and other tomography methods. Yet, ECT has low spatial resolution, lack of ...

Sodium borohydride (NaBH4) hydrogen storage systems offer many advantages for hydrogen storage applications. The physical processes inside a NaBH4 packed bed reactor involve multi-component and multi-phase flow and multi-mode heat and mass transfer. These processes are also coupled with reaction kinetics. To guide reactor design and optimization, a reactor model involving all of these processes...

A 1D heterogeneous reactor model accounting for interfacial and intra-particle gradients was developed to simulate the dehydration of 2,3-Butanediol (2,3-BDO) to 1,3-Butadiene (1,3-BD) and Methyl Ethyl Ketone (MEK) over an amorphous calcium phosphate (a-CP) catalyst in a pilot-scale fixed-bed reactor. The developed model was validated with experimental data in terms of a fluid temperature profi...