scholarly journals Teaching Concepts of ’Scale-up’ from Chemistry to Chemical Engineering Using Process Flow Diagrams (Resource Exchange)

2020 ◽  
Author(s):  
D'Andre Wilson-Ihejirika
Keyword(s):  
Chemical Engineering ◽  
Scale Up ◽  
Resource Exchange ◽  
Process Flow ◽  
Flow Diagrams

scholarly journals Analysis of the criteria of efficiency of work of separators for the field of hydrocarbon raw

2019 ◽  
pp. 114-119
Author(s):  
Valeriy V. Piven ◽  
Vladislav S. Shchelkonogov
Keyword(s):  
Technological Process ◽  
Raw Materials ◽  
Comprehensive Assessment ◽  
Technological Scheme ◽  
Qualitative Composition ◽  
Separation Processes ◽  
Process Flow ◽  
Multi Stage ◽  
Flow Diagrams

Assessment of the quality of separation of hydrocarbon raw during its field preparation is necessary to determine the efficiency of the entire technological process of preparation. The absence of complex criteria for assessing the quality of separation for multi-stage processes does not allow one to obtain unambiguous solutions in justifying the process flow diagrams and equipment for separation. We have analyzed the typical technological scheme of separation of hydrocarbon raw materials and existing criteria for separation processes. It is proposed to use the criterion for a comprehensive assessment of the separation processes of hydrocarbon raw materials, allowing calculating the efficiency of the process, taking into account the possible production of intermediate fractions and their qualitative composition

scholarly journals Analysis of the Computing Methods of Structural Reliability of Process Flow Diagrams for the Power Generating Units of Nuclear Power Plants

2016 ◽  
Vol 0 (10) ◽  
Author(s):  
Dmitriy Igorevich Kuhtin ◽  
Alexander Vyacheslavovich Yefimov ◽  
Tatyana Vladimirovna Potanina ◽  
Tatyana Anatolievna Garkusha
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Structural Reliability ◽  
Computing Methods ◽  
Process Flow ◽  
Flow Diagrams

scholarly journals CFD-PBM Coupled Simulation of Liquid-Liquid Dispersions in Spray Fluidized Bed Extractor: Comparison of Three Numerical Methods

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Dan Zheng ◽  
Wei Zou ◽  
Chuanfeng Peng ◽  
Yuhang Fu ◽  
Jie Yan ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Method Of Moments ◽  
Chemical Engineering ◽  
High Reliability ◽  
Scale Up ◽  
Population Balance ◽  
Numerical Code ◽  
Balance Model ◽  
Quadrature Method ◽  
Quadrature Method Of Moments

A coupled numerical code of the Euler-Euler model and the population balance model (PBM) of the liquid-liquid dispersions in a spray fluidized bed extractor (SFBE) has been performed to investigate the hydrodynamic behavior. A classes method (CM) and two representatively numerical moment-based methods, namely, a quadrature method of moments (QMOM) and a direct quadrature method of moments (DQMOM), are used to solve the PBE for evaluating the effect of the numerical method. The purpose of this article is to compare the results achieved by three methods for solving population balance during liquid-liquid two-phase mixing in a SFBE. The predicted results reveal that the CM has the advantage of computing the droplet size distribution (DSD) directly, but it is computationally expensive if a large number of intervals are needed. The MOMs (QMOM and DQMOM) are preferable to coupling the PBE solution with CFD codes for liquid-liquid dispersions simulations due to their easy application, reasonable accuracy, and high reliability. Comparative results demonstrated the suitability of the DQMOM for modeling the spray fluidized bed extractor with simultaneous droplet breakage and aggregation. This work increases the understanding of the chemical engineering characteristics of multiphase systems and provides a theoretical basis for the quantitative design, scale-up, and optimization of multiphase devices.

Scale-Up in Chemical Engineering

2017 ◽  
pp. 1-33
Author(s):  
Sean Moran ◽  
Marko Zlokarnik
Keyword(s):  
Chemical Engineering ◽  
Scale Up

Automatic generation of process flow diagrams

1988 ◽  
Vol 12 (3-4) ◽  
pp. 525-539
Author(s):  
A.C. Liu ◽  
K.S. Wong
Keyword(s):  
Automatic Generation ◽  
Process Flow ◽  
Flow Diagrams
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