Prediction of the performance of catalytic fixed bed reactors for Fischer-Tropsch Synthesis

Bub, G.; Baerns, M.; Büssemeier, B.; Frohning, C.‐D.

doi:10.1016/0009-2509(80)80106-0

Cited by 70 publications

(33 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to a recent summary of the current status given by Steynberg et al [1], only five serious modeling studies on FT fixed bed reactors have been reported in the (open) literature [2][3][4][5][6][7]. In a study not mentioned by Steynberg et al -as it was published just recently -Guettel and Turek also presented a simulation study of FT reactors [8].…”

Section: Objectives and Methodologymentioning

confidence: 93%

Modeling of Multi‐Tubular Reactors for Fischer‐Tropsch Synthesis

Jess

Kern

2009

Chem Eng & Technol

View full text Add to dashboard Cite

The results of the simulation of multi-tubular Fischer-Tropsch reactors based on a two-dimensional pseudo-homogeneous model are presented. The model takes into account the intrinsic kinetics of two commercial iron and cobalt catalysts, intraparticle mass transfer limitations, and the radial heat transfer within the fixed bed and to the cooling medium (boiling water). The effective rate with Co is slightly higher than with Fe. Hence, a temperature level can be used for Co that is 20°C lower compared to Fe. The conversion and product selectivies are then almost the same and the reactor can be operated safely without a temperature runaway. The results of the simulations are consistent with literature data and show that there is still room for improvement of fixed bed FT reactors, e.g., by an enhanced heat transfer.

show abstract

Section: Objectives and Methodologymentioning

confidence: 93%

Modeling of Multi‐Tubular Reactors for Fischer‐Tropsch Synthesis

Jess

Kern

2009

Chem Eng & Technol

View full text Add to dashboard Cite

show abstract

“…According to a recent review from Steynberg et al [17], the number of serious modeling studies on fixed-bed FT reactors reported in the open literature is limited [1,[18][19][20][21][22]. Since the publication of Steynberg's review, to our knowledge only two more studies on the simulation of fixed-bed FT reactors have been published: Guettel and Turek [2] compared different reactors by a 1D approach (fixed bed, monolithic reactor, and microreactor) demonstrating the potential of new concepts to decrease mass transfer resistances.…”

Section: Introductionmentioning

confidence: 98%

Influence of Particle Size and Single‐Tube Diameter on Thermal Behavior of Fischer‐Tropsch Reactors. Part I. Particle Size Variation for Constant Tube Size and Vice Versa

Jess

Kern

2011

Chem Eng & Technol

View full text Add to dashboard Cite

Simulation of a single tube of a wall-cooled multitubular Fischer-Tropsch (FT) reactor with a cobalt catalyst indicates that the reactor performance is improved by enlarging the catalyst particle diameter. This aspect is studied for variation of the particle size for a fixed tube diameter and vice versa. For a syngas conversion per pass of about 30 % as target and a typical industrially used single-tube diameter of 40 mm, a particle size of > 3 mm is appropriate with regard to a high production rate of higher hydrocarbons. For a particle diameter of < 3 mm, a temperature runaway can only be avoided by rather low cooling temperatures, and the target conversion cannot be reached. In addition, the pressure drop then gets rather high. The reasons for this behavior are: (i) the heat transfer to the cooled tube wall for a given tube size is considerably enhanced by increasing the particle size; (ii) the influence of pore diffusion on the effective rate gets stronger with rising particle size which decreases the danger of temperature runaway.

show abstract

“…Bub et al [11], and Jess et al [12] developed a twodimensional, pseudo-homogeneous model that was used to predict product distribution [11] and perform the conceptual design of a fixed bed reactor for converting nitrogen rich syngas [12]. Atwood and Bennet [10] have proposed a onedimensional, heterogeneous plug flow model.…”

Section: Introductionmentioning

confidence: 99%

Fischer-Tropsch Synthesis: Modeling and Performance Study for Fe-HZSM5 Bifunctional Catalyst

Marvast

Sohrabi

Zarrinpashne³

et al. 2005

Chem. Eng. Technol.

View full text Add to dashboard Cite

A water-cooled fixed bed Fischer-Tropsch reactor packed with Fe-HZSM5 catalyst has been modeled in two dimensions (radial and axial) using the intrinsic reaction rates previously developed at RIPI. The reactor is used for production of highoctane gasoline from synthesis gas. The Fischer-Tropsch synthesis reactor was a shell and tube type with high pressure boiling water circulating on the shell side. By the use of a two-dimensional model, the effects of some important operating parameters such as cooling temperature, H 2 /CO ratio in syngas and reactor tube diameter on the performance capability of the reactor were investigated. Based on these results, the optimum operating conditions and the tube specification were determined. The model has been used to estimate the optimum operating conditions for the pilot plant to be operated in RIPI.

show abstract

Prediction of the performance of catalytic fixed bed reactors for Fischer-Tropsch Synthesis

Cited by 70 publications

References 3 publications

Modeling of Multi‐Tubular Reactors for Fischer‐Tropsch Synthesis

Modeling of Multi‐Tubular Reactors for Fischer‐Tropsch Synthesis

Influence of Particle Size and Single‐Tube Diameter on Thermal Behavior of Fischer‐Tropsch Reactors. Part I. Particle Size Variation for Constant Tube Size and Vice Versa

Fischer-Tropsch Synthesis: Modeling and Performance Study for Fe-HZSM5 Bifunctional Catalyst

Contact Info

Product

Resources

About