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Corrosion Control in Sulphur Recovery Units – Claus Process
Abu Dhabi International Petroleum Exhibition & Conference, 2017Abstract Today there are more than 100 Sulphur Recovery Units in the Middle East and many of them have been in operation for 10 years or longer. Corrosion can be one of the most challenging issues in these units due to the presence of hydrogen sulfide, sulphur dioxide, elemental sulphur and water.
A. Alkasem +3 more
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Bioelectro-Claus processes using MFC technology: Influence of co-substrate
Bioresource Technology, 2015This work is focused on the removal of sulphide from wastewater using a two chamber microbial fuel cell, seeded with activated sludge and operated in semi-continuous mode. Two co-substrates were used in order to provide the system for carbon and nutrient source: actual urban wastewater and synthetic wastewater.
A, Raschitor +6 more
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Optimal operation of the cyclic claus process
2007Abstract The dynamic analysis and optimization of the novel cyclic Claus process, a four-step, one-bed, vacuum swing adsorptive reactor (VSAR) is studied. The partial differential and algebraic equations describing the physical behavior of the system are stated in a dimensionless form.
Assanousi Abufares, Sebastian Engell
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ChemInform Abstract: An Electrochemical Claus Process for Sulfur Recovery.
ChemInform, 1990AbstractThe electrochemical oxidation of H2S (produced in large amounts in technical processes such as the coal gasification/liquifaction or heavy oil desulfurization) to yield sulfur and water is achieved at 900 °C using fuel cells that contain a tungsten wire current collector coated with different electrocatalysts in the H2S anode compartment, a ...
N. U. PUJARE, K. J. TSAI, A. F. SAMMELLS
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Formation of Mercaptans and Organosulfur Species in Claus Process
Abu Dhabi International Petroleum Exhibition & Conference, 2017Abstract The formation of mercaptans and organosulfur species in Claus process leads to a reduction in the sulfur recovery efficiency, and an increase in the cost of tail gas treatment. While process optimization can be used to minimize their production in plants, the existing models fail to predict their concentrations to a reasonable ...
Ramees K. Rahman +2 more
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The Claus process: teaching an old dog new tricks
Catalysis Today, 2003Abstract The potential of integrating reaction with adsorption in a single piece of equipment to favourably displace chemical equilibria has attracted considerable attention in recent years. In contrast to the most such multifunctional reactor concepts investigated so far, the aim of our work is to study an industrially relevant chemical system with ...
Martin P. Elsner +3 more
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Mixing of Reactants in Claus Process under Non-Reactive Conditions
7th International Energy Conversion Engineering Conference, 2009The reactant mixing in Claus process is examined under non-reactive conditions in cross flow geometry. The different cases examined had constant momentum flux ratio between the non-reactive and reactive cases. The flow pattern as well as the mixing length has been investigated for the various configurations examined here.
Hatem Selim +2 more
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An alternative to the claus process for treating hydrogen sulfide
Energy, 1987Abstract The thermochemical decomposition of hydrogen sulfide by concentrated sunlight was investigated. Three commercial catalysts were used to improve the kinetics of the reaction. It was shown that a cobalt-molybdenum catalyst has the highest activity. A hydrogen yield of 19% was obtained at a reaction temperature of 770 °C and residence time of 0.
O.A. Salman, A. Bishara, A. Marafi
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Dynamical Model of the Claus Process and its Identification
2007 American Control Conference, 2007The Claus process is widely used for sulfur recovery from H2S that is contained in natural gas and other fossil fuels. Control of the Claus reaction is difficult because of the nonlinear character and long dead time of the process. A dynamical model of the Claus process suitable for controller design and tuning is developed in this paper. The developed
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A new approach for hydrogen production in Claus sulfur recovery process
Journal of Sulfur Chemistry, 2018ABSTRACTIn this study, the decomposition of hydrogen sulfide and reforming of hydrocarbons were employed for producing hydrogen. Thermolysis of H2S in the platinum-based catalytic reactor led to the production of hydrogen and sulfur. It is observed that the presence of catalyst increased the conversion of H2S decomposition up to 99.6%.
Ahmad Taghizadeh Damanabi +1 more
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