Flowsheet Simulation of Solids Processes

Hartge, Ernst‐Ulrich; Pogodda, Matthias; Reimers, C.; Schwier, Daniel; Gruhn, Günter; Werther, Joachim

doi:10.14356/kona.2006017

Cited by 33 publications

(9 citation statements)

References 3 publications

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“…In the past, these tools were focused on fluid processes. Solids processes were more recently specifically addressed by a new tool, SolidSim, which was developed in the authors' group [58]. In 2012, SolidSim merged into Aspen.…”

Section: Computer-aided Fluidized-bed Process Developmentmentioning

confidence: 99%

Fluidized‐Bed Reactors – Status and Some Development Perspectives

Werther

Hartge

Heinrich

2014

Chemie Ingenieur Technik

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This review of industrial applications of fluidized-bed reactors is focused on the fluid catalytic cracking (FCC) process and the fluidized-bed combustion. Both processes have a tremendous economic importance. In the FCC process, the main challenges are the increase of runtime, the adaption of the product spectrum to regional requirements of the market, and the adaption to heavier feedstocks. In fluidized-bed combustion the main trends are towards larger units sizes, higher efficiency, and further reduced emissions while keeping the boiler as flexible as possible with regard to the mixture of fuels.

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Section: Computer-aided Fluidized-bed Process Developmentmentioning

confidence: 99%

Fluidized‐Bed Reactors – Status and Some Development Perspectives

Werther

Hartge

Heinrich

2014

Chemie Ingenieur Technik

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“…Nowadays, flowsheet simulation software is commonly used to aid with design, planning, optimization, and testing in chemical engineering [8]. Usually it can help with the minimization of operation costs, troubleshooting, increasing throughput and product quality, and generally provides a better understanding of the process.…”

Section: Flowsheet Simulation Of Solid Phase Processesmentioning

confidence: 99%

Application of Transformation Matrices to the Solution of Population Balance Equations

et al. 2019

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The development of algorithms and methods for modelling flowsheets in the field of granular materials has a number of challenges. The difficulties are mainly related to the inhomogeneity of solid materials, requiring a description of granular materials using distributed parameters. To overcome some of these problems, an approach with transformation matrices can be used. This allows one to quantitatively describe the material transitions between different classes in a multidimensional distributed set of parameters, making it possible to properly handle dependent distributions. This contribution proposes a new method for formulating transformation matrices using population balance equations (PBE) for agglomeration and milling processes. The finite volume method for spatial discretization and the second-order Runge–Kutta method were used to obtain the complete discretized form of the PBE and to calculate the transformation matrices. The proposed method was implemented in the flowsheet modelling framework Dyssol to demonstrate and prove its applicability. Hence, it was revealed that this new approach allows the modelling of complex processes involving materials described by several interconnected distributed parameters, correctly taking into consideration their interdependency.

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“…Hence, there is a need for high fidelity lumped or distributed parameter models which could be deployed as soft-sensors for on-line optimization as well as for advanced process control. Moreover, these models could be incorporated into general purpose simulation software tools such as SolidSim for processing of particulate solids (Hartge et al, 2006) for designing processes.…”

Section: Challenges Faced In Process Optimizationmentioning

confidence: 99%

Model-Based Optimization of Industrial Gas-Solid Reactors

Runkana

2015

KONA

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Heterogeneous non-catalytic gas-solid reactors are commonly used in the production of chemicals, metals and metal oxides, for example, rotary drum reactor for producing quick lime; blast furnace, a moving bed reactor for producing iron, etc. Industrial processes involve multicomponent mixtures of solids as most of the naturally occurring materials such as minerals are multicomponent in nature. Generally the raw materials are heterogeneous and their physical and chemical characteristics vary from one source to another. The solid particles are also usually moist, the moisture content varying from season to season. The physico-chemical phenomena that take place in these reactors include flow of gases through porous media, heat transfer between the gases, solids, equipment and the environment, evaporation and condensation of moisture, reactions between gases and solids and within a single phase, melting and solidification depending on the temperatures inside the reactor, etc. The flow of particles is also of great importance especially in rotary drum and moving bed reactors. General features of the mathematical models for non-catalytic reactors are described along with models for the phenomena mentioned above. Case studies from the iron and steel industry on model-based optimization of production of direct reduced iron in a rotary kiln and induration of wet iron ore pellets on a moving packed bed reactor are discussed here.

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Flowsheet Simulation of Solids Processes

Abstract: Abstract

Cited by 33 publications

References 3 publications

Fluidized‐Bed Reactors – Status and Some Development Perspectives

Fluidized‐Bed Reactors – Status and Some Development Perspectives

Application of Transformation Matrices to the Solution of Population Balance Equations

Model-Based Optimization of Industrial Gas-Solid Reactors

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