Modeling the fischer-tropsch reactionin a slurry bubble column reactor

Hedrick, Scott A.; Chuang, Steven S. C.

doi:10.1080/00986440302083

Cited by 13 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the results demonstrate, DME productivity and CO conversion were indeed functions of the (Qin et al, 1999) Slurry phase properties (de Swart and Krishna, 2002;Hedrick and Chuang, 2003;Krishna and Ellenberger, 1996) …”

Section: Resultsmentioning

confidence: 75%

Dme Direct Synthesis From Syngas in a Large-Scale Three-Phase Slurry Bubble Column Reactor: Transient Modeling

Papari

Kazemeini

Fattahi

et al. 2014

Chemical Engineering Communications

View full text Add to dashboard Cite

In this research, a new transient mathematical model based upon tanks-in-series configuration was developed to simulate the direct synthesis of dimethyl ether (DME) from syngas in a commercial-scale slurry bubble column reactor. A comparison between the simulation results and experimental data showed that the applied model might acceptably describe the behavior of the slurry reactor. Furthermore, simulation results in the heterogeneous bubble flow regime indicated that the proposed model with 10 tanks-in-series provided the optimum condition. Utilizing this transient model and considering catalyst deactivation, the effect of operating conditions on DME productivity and CO conversion were investigated. In addition, the dynamic behavior of the reactor was studied after implementing a step change in the reactor's coolant fluid temperature.

show abstract

Section: Resultsmentioning

confidence: 75%

Dme Direct Synthesis From Syngas in a Large-Scale Three-Phase Slurry Bubble Column Reactor: Transient Modeling

Papari

Kazemeini

Fattahi

et al. 2014

Chemical Engineering Communications

View full text Add to dashboard Cite

show abstract

“…7 Models were applied to the F-T conversion of synthesis gas in a SBCR. [7][8][9] They require holdup correlations, diffusivity, mass-transfer coefficient, and bubble size as inputs. As inputs into such a model, eddy diffusivities were measured using computer-aided radioactive particle tracking (CARPT).…”

Section: Introductionmentioning

confidence: 99%

“…The design and scale-up of SBCRs require, among other things, precise knowledge of kinetics, hydrodynamics, and mass-transfer characteristics over a wide range of operating conditions for reactors with a diameter as large as 7 m and a height of 30 m being built by oil industries . Models were applied to the F−T conversion of synthesis gas in a SBCR. − They require hold-up correlations, diffusivity, mass-transfer coefficient, and bubble size as inputs. As inputs into such a model, eddy diffusivities were measured using computer-aided radioactive particle tracking (CARPT) .…”

Section: Introductionmentioning

confidence: 99%

Optimum Catalyst Size for Slurry Bubble Column Reactors

Gamwo

Gidaspow

Jung

2005

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

A mathematical model to describe the hydrodynamics of the slurry bubble-column reactor (SBCR) for converting synthesis gas into liquid fuels has been developed. This model includes the complete granular temperature balance based on the kinetic theory of granular flow. The kinetic theory model and the computer code were extended to include the effect of the mass-transfer coefficient between the liquid and gas and the water gas shift reaction in the Air Products/DOE LaPorte SBCR. In this model, the mass-transfer coefficient is an input. It was estimated from a relationship between the fundamental equations of the boundary layers and the turbulent kinetic energy of particles (granular temperature) computed by the hydrodynamic model with no reaction. We have varied the particle size from 20 to 100 μm and discovered a maximum in the granular temperature. For the particles over this range, the mass-transfer coefficient has the highest values. With reaction, this model was used to predict the slurry height, gas holdup, and rate of methanol production of the Air Products/DOE LaPorte SBCR. The computed granular temperature was around 30 cm/s2, and the computed catalyst viscosity was close to 1.0 cP, as shown by Wu and Gidaspow (Chem. Eng. Sci. 2000, 55, 573). The estimated volumetric mass-transfer coefficient has a good agreement with experimental values shown in the literature. A critical issue in the SBCR that has not been addressed in the literature is that of optimum particle size. The optimum size was determined for maximum methanol production in a SBCR. The size was about 60−70 μm, which was found for maximum granular temperature in the model with no reaction.

show abstract

Conversion of Syngas to Fuels

Chuang

2012

Handbook of Climate Change Mitigation

View full text Add to dashboard Cite

Modeling the fischer-tropsch reactionin a slurry bubble column reactor

Cited by 13 publications

References 25 publications

Dme Direct Synthesis From Syngas in a Large-Scale Three-Phase Slurry Bubble Column Reactor: Transient Modeling

Dme Direct Synthesis From Syngas in a Large-Scale Three-Phase Slurry Bubble Column Reactor: Transient Modeling

Optimum Catalyst Size for Slurry Bubble Column Reactors

Conversion of Syngas to Fuels

Contact Info

Product

Resources

About