Results 211 to 220 of about 14,376 (260)
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Activity monitoring of Claus catalysts in sulfur recovery units
Catalysis in Industry, 2009Methodical principles of catalyst activity monitoring in Claus reactors based on the determination of the rate constant of the reaction of hydrogen sulfide conversion at catalyst temperatures lower than 280°C are discussed. The procedure is justified by data from laboratory experiments (in the range of concentrations [H2S]0 = 1.5–7 vol %), pilot tests (
O. I. Platonov +4 more
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Simplified Structural Analysis and Design Procedures for Sulfur Recovery Units
Practice Periodical on Structural Design and Construction, 2022AbstractThis paper presents cost-effective guidelines for practicing engineers to design, evaluate, or review the structural design of the sulfur recovery unit (SRU) used in refineries.
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Novel Leak Detection Method for Sulfur Recovery Unit Condensers
Oil and Gas Facilities, 2013Summary At a Shell sour-gas processing facility in Alberta, Canada, hydrogen sulfide contained within the natural gas is converted into elemental sulfur by means of a sulfur recovery unit (SRU). Tube leaks present in a water-cooled SRU condenser can lead to a variety of process issues, including corrosion and the oxidative formation of ...
Timothy Cheung +2 more
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Effects of Nutrient Component on the Performance of Biological Sulfur Recovery Unit
SSRN Electronic Journal, 2021Biological Sulfur Recovery Unit (Bio-SRU) with Thiobacillus as biocatalysts is believed to be suitable for handling hydrocarbon feed gas with moderate to low-H2S concentration. The purpose of this study is to evaluate the effect of SO4 2-, PO4 3-, and Fe2+ concentration on Bio-SRU performance particularly on the conversion of sulfide to elemental ...
Ronny Purwadi +2 more
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Sulfur Recovery Units: Adaptive Simulation and Model Validation on an Industrial Plant
Industrial & Engineering Chemistry Research, 2010The paper is aimed at discussing and fixing issues in providing a generalized approach to the simulation of sulfur recovery units (SRUs). The main goal is to get a simulation that is at the same time (i) reasonably detailed and robust to properly characterize SRUs and (ii) so generalized to provide a tool that is not only specific for the case in study.
S. Signor +4 more
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Waste Heat Recovery in a Sulfuric Acid Production Unit
2018This paper is a contribution to the waste heat recovery in a diammonium phosphate production plant. Such plant is made of sulfuric acid, phosphoric acid, and diammonium phosphate production units.
Fathia Chouaibi +2 more
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Soft sensor design for a Sulfur Recovery Unit using a clustering based approach
2008 IEEE Instrumentation and Measurement Technology Conference, 2008In the paper a soft sensor design strategy for an industrial process, via neural NMA model, is described. A general design strategy, based on the automatic selection of regressors of a NMA model is proposed. It is based on the minimization of the cost function of a Gath Geva clustering algorithm.
GRAZIANI, Salvatore +2 more
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Environmental Research, 2023
Pollutant emissions from chemical plants are a major concern in the context of environmental safety. A reliable emission forecasting model can provide important information for optimizing the process and improving the environmental performance. In this work, forecasting models are developed for the prediction of SO2 emission from a Sulfur Recovery Unit
Muhammed Thameem +4 more
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Pollutant emissions from chemical plants are a major concern in the context of environmental safety. A reliable emission forecasting model can provide important information for optimizing the process and improving the environmental performance. In this work, forecasting models are developed for the prediction of SO2 emission from a Sulfur Recovery Unit
Muhammed Thameem +4 more
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Understanding the Multiple Purposes of Refractory Linings in Sulfur Recovery Units
Volume 7: Operations, Applications and Components, 2017Within Sulfur Recovery Units (SRU), many equipment and piping items are built with internal refractory linings, but between the various process areas, the refractory is being used for completely different functions. Understanding the “purpose” of the refractory is important for both the initial selection of the optimum type of refractory, and also for ...
Cathleen Shargay +2 more
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Corrosion Risks in Vapor Lines Going to Sulfur Recovery Unit Incinerators
CORROSION 2016, 2016Abstract In Sulfur Recovery Units (SRU), the piping transporting various gas streams to the incinerator can experience severe corrosion and plugging due to condensation of sulfur, water and/or sulfuric acid. Case histories of these problems have occurred even in lines with properly-designed steam tracing systems ...
Cathleen Shargay +4 more
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