Enhancement of gas distribution uniformity in a claus process catalytic reactor using computational fluid dynamics

Hosseini, SeyedMehrdad; Alizadeh, Reza; Alizadehdakhel, Asghar; Behjat, Yaghoub; Nooriasl, Parisa

doi:10.1016/j.cep.2019.107653

Cited by 11 publications

(3 citation statements)

References 14 publications

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“…When gas reaches adsorbent bed, it has a better distribution. Hosseini et al [12] found that the hole array (staggered/square array) had slight effect on gas distribution uniformity. Changing the hole size distribution and the perforated plate porosity can improve gas distribution performance.…”

Section: Introductionmentioning

confidence: 99%

Structural Improvement and Numerical Simulation of a Perforated Distributor in an Adsorption Tower

Hao,

Zhang,

et al. 2024

Chem Eng & Technol

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A “closed” perforated plate distributor was proposed to improve the gas distribution in an industrial adsorption tower. Compared with the industrial perforated plate distributor, the designed distributor restricts the space for the disordered movement of gas under the perforated plate. The new distributor effectively converts the gas from the initial axial flow on the inlet section to the axial flow on the tower section to improve the gas uniformity. In addition, the gas velocity at the edge of the inlet cross section of the adsorbent bed is increased by opening holes on the bottom plate. The uniformity of gas distribution is further improved. The simulation method in this study and the distribution performance of the “closed” perforated plate distributor have been verified by experiments.

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Section: Introductionmentioning

confidence: 99%

Structural Improvement and Numerical Simulation of a Perforated Distributor in an Adsorption Tower

Hao,

Zhang,

et al. 2024

Chem Eng & Technol

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“… 20 A distributor with excellent performance not only effectively provides uniform predistribution of the gas before it flows into the packed bed but also prevents the direct effect of high-velocity gas on the adsorption bed. In general, industrial gas distributors including porous plate distributors, 21 circular distributors, 22 fractal distributors, 23 spherical microporous gas distributors, 24 etc. are indispensable.…”

Section: Introductionmentioning

confidence: 99%

Research on Oil and Gas Adsorption Optimization Based on CFD Modeling and Process Simulation

Liu,

Zhang,

Tao

et al. 2024

ACS Omega

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“…Claus process is one of the oldest, common, and useful method to do this role (Hosseini et al, 2019). Several methods have been developed for increasing SRU recovery (Rostami et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Performance assessment and process optimization of a sulfur recovery unit: a real starting up plant

Ibrahim

Ashour

Gadalla

et al. 2023

Environ Monit Assess

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Sulfur recovery units (SRU) have an important role in the industrial production of elemental sulfur from hydrogen sulfide, whereas the generated acidic gas emissions must be controlled and treated based on local and international environmental regulations. Herein, Aspen HYSYS V.11 with Sulsim software is used to simulate the industrial and treatment processes in a refinery plant in the Middle East. In the simulation models, in temperature, pressure, flow, energy, and gas emissions were monitored to predict any expected change that could occur during the industrial processes. The simulation models were validated by comparing the obtained data with actual industrial data, and the results showed low deviation values. The simulation results showed that the current process temperature conditions can work efficiently for sulfur production without causing any environmental consequences. Interestingly, the simulation results revealed that sulfur can be produced under the optimized temperature conditions (20° less than design temperatures) with a total amount of steam reduction by 1040.12 kg/h and without any negative impact on the environment. The steam reduction could have a great economic return, where an average cost of 7.6 $ per ton could be saved with a total estimated cost savings by 69,247.03 $ per year. The simulation revealed an inaccurate production capacity calculated by real data in the plant during the performance test guarantee (PTG) where the real data achieved around 1 ton/h higher capacity than the simulation result, with an overall recovery efficiency of 99.96%. Based on this significant result, a solution was raised, and the level transmitters were calibrated, then the test was repeated. The simulation models could be very useful for engineers to investigate and optimize the reaction conditions during the industrial process in sulfur production facilities. Hence, the engineers can utilize these models to recognize any potential problem, thereby providing effective and fast solutions. Additionally, the simulation models could participate in assessing the performance test guarantee (PTG) calculations provided by the contractor.

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Enhancement of gas distribution uniformity in a claus process catalytic reactor using computational fluid dynamics

Cited by 11 publications

References 14 publications

Structural Improvement and Numerical Simulation of a Perforated Distributor in an Adsorption Tower

Structural Improvement and Numerical Simulation of a Perforated Distributor in an Adsorption Tower

Research on Oil and Gas Adsorption Optimization Based on CFD Modeling and Process Simulation

Performance assessment and process optimization of a sulfur recovery unit: a real starting up plant

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