The claus process is not a gaspurification process in the true sense of the word, as its principal objective is recovery of sulfur from gaseous hydrogen sulfide or, more commonly, from acid gas streams containing hydrogen sulfide in high concentrations. Pdf studies on sulfur recovery plant performance using. Pdf sulfur recovery from acid gas using the claus process. The resulting vapor and liquid are to be separated as the two. The hysys section column identifies the tutorials and exercises in this hysys manual. Finally, proposed process was simulated in hysys software and.
Note an alternative package for this system is the prsv 3. Chemical process simulation and the aspen hysys v8. You will get an overview of this process and you will learn how to simulate this in aspen hysys and. Claus process, reaction furnace, kinetic modeling, simulation. The claus process typically recovers 95 to 98 percent of the hydrogen sulfide feedstream. This will follow the description of the programs and the components. Debottlenecking and optimisation of oil and gas facilities. Approximately 90 to 95 percent of recovered sulfur is produced by the claus process. Ahmed deyab fares process simulation consultant by. Internet mode, aspen process manual intranet mode, aspen process manual mini manuals, aspen process manual slurry handling, aspen process manual solid liquid separation, aspen process manual solvent extraction, aspen process manual. Lee kesler plocker3 lkp is an adaptation of the lee kesler equation for.
Waivers and exceptions to this manual 114 section 2. It contains mostly those pages that have web links. Note that these add up to approximately 100, not 1. This problem is based very loosely on example problem 4. Any other person helping to copy and distribute ed printed material such as the hysys manual is classified as a pirate as well. Process explorer cbt, aspen process manual applied rheology, aspen process manual bulk solids. Design ii for windows is the only process simulator offered. Internet mode, aspen process manual intranet mode, aspen process manual mini manuals, aspen process.
Select composition under worksheet in the lefthand column. Aspentech bought the program hysys from hyprotech in 2002, and in 2006 the program name was changed to aspen hysys. Sep 20, 2015 basic claus vs modified claus process basic claus reaction introduced in 1883 by english scientist carl friedrich claus. The claus process was developed around 1890 and was based on passing h2s and air over a catalyst. Hysys pid algorithm implements a two degrees of freedom pid controller via setpoint weighting low limit for the controller op can now be specified to be less than 0%. Modeling and simulation of claus unit reaction furnace. Pdf due to high pollution of the claus sulfur recovery units in oil refineries. A comprehensive and example oriented text for the study of chemical process design and simulation chemical process design and simulation is an accessible guide that offers information on the most important. The unit operations needed for a basic process are outlined below. Support this clause covers the resources needed to ensure the management systems performance and its ability to meet its obligations. Introduction to chemical process simulators 5 architecture of process simulators sequentialmodular based on the concept of modularity, which extends the chemical engineering concept of the unit operation to a unit calculation by the computer code responsible for the calculation of single process unit. Since these compounds are hydrocarbons, use the pengrobinson thermodynamic package. This streamlines reliefsizing analysis eliminating work in any external third party tools.
Dynamics, aspen hysys johnson matthey reactor models, aspen hysys olgas. The ultimate aim of this research is to carry out the process analysis for claus unit in order to recover the waste energy to increase the plant productivity, minimise the use of the plant utilities, and decrease the environmental pollution. The result shows the complete conversion of sour gas to product. This example will illustrate the complete construction of the simulation, including selecting a property package and components, defining the reaction, installing.
The document chemical process simulation and the aspen hysys v8. The tutorial s you choose to work through will likely depend on the simulation topic that is most closely related to your work hysys as process engineering tool owned amp marketed by aspen tech developed by hyprotech. It focuses on the development and use of a planning process, rather than a procedure to address factors and the risk associated with these factors. Under principles of process flowsheet simulation, access getting started in hysys overview.
The claus technology can be divided into two process steps, thermal and catalytic thermal step. Introduction to chemical process simulators 5 architecture of process simulators sequentialmodular based on the concept of modularity, which extends the chemical engineering concept of the unit operation to a unit calculation by the computer code responsible for the calculation of single process. In hysys, the dynamic analysis of a process system can provide insight into the process. The book covers the use of hysys on computers that use the. The separate manual is available for the contact process for sulfuric acid manufacture. A model of the ogpu processing equipment is developed using hysys dynamicstm, which is a general purpose process simulation tool. It provides comprehensive thermodynamics basis for accurate. Aspen hysys is a widely used process simulator which provides quite accurate results compared to the real life result. Pdf a simulation of claus process via aspen hysys for. Chemical process simulation and the aspen hysys v10. The model includes main process equipment such as separators, pumps, and compressors as well as piping and valves.
In addition, hysys offers several methods which are modifications of these property packages, including prsv, zudkevitch joffee zj and kabadi danner kd. Hysys currently offers the enhanced pengrobinson1 pr, and soaveredlichkwong2 srk equations of state. Aspen hysys simulation of co2 removal by amine absorption. Reduced sulfur emissions from existing claus sulfur recovery unit. It should be emphasized, however, that this book covers the basics of hysys which do not change that much from version to version.
If the process involves reactions, provide information such as stoichiometry and kinetic constants 5. Because we will build on our existing simulation with each tutorial, it is highly recommended that you save your work every. The claus process is the most significant gas desulfurizing process, recovering elemental sulfur from gaseous hydrogen sulfide. In general, gas processing plants and oil refineries are required to recover between 95 and 99. Create new simulation file when running under windows 10 you can start the program from start, the all programs list, aspen hysys, aspen hysys v10. In the thermal step, hydrogen sulfideladen gas reacts in a substoichiometric combustion at temperatures above 850 c such that elemental sulfur precipitates in the downstream process gas cooler. Pdf chemical process simulation and the aspen hysys. Cranfield university khaled r m gharsalla process analysis. There are some journal articles 14, and 3 of them have used the process simulation program aspen plus. Use the bookmarks to the left to go to a specific page.
Hysys oli interface, aspen hysys optimizer, aspen hysys pipesys, aspen hysys tacite, aspen hysys upstream dynamics, aspen hysys upstream, aspen hysys, aspen icarus process evaluator, aspen icarus project manager. The claus process has been known and used in the industry for over 100 years. Process explorer cbt, aspen process manual applied rheology, aspen process manual bulk solids handling, aspen process manual crystallization, aspen process manual drying, aspen process manual gas cleaning, aspen process manual internet mode, aspen process manual intranet mode, aspen process manual mini manuals, aspen. Variations of the claus process, direct oxidation, and liquid redox processes, can overlap other processes applicability ranges. Aspen hysys v10 sulsim modified claus three stage simulation model is used to mimic the behavior of a real sulfur recovery unit and it is considered as the base case. Welcome to the course hysys basic process modeling. In this study, it was shown that only factors which could affect the conversion of h2s were the. Energy efficiency out in i e e usable energy out of a process compared to all energy inputs energy values could be heat, work, or chemical potential heating value hhv gross. Model an acid gas sweetening process using mixed amines and configure a liquidliquid extractor. Enter the values from the table in the basis section as mole fractions. Hysys, an interactive and integrated modeling environment product capabilities hysys steady state process simulation with hysys provides the accuracy, speed, and efficiency required for process design activities.
If the process contains recycle loops, deal with closing them. Prior to the new aspen hysys solution, reliefsizing workflows demanded the use of the aspen hysys simulator for process flows and physical properties and additional tools to complete. The hysys program, like most other software, is continually being developed and new versions are released frequently. This behavior can be reproduced by this hysys design very well. However, these parameters gave poor performance and manual tuning was used to.
A process model of the plant was developed and validated in aspen hysys. The claus process is the most widely used process for conversion of h 2 s to elemental sulfur. While the claus process is still the main process for recovering sulfur from h 2 s, several new processes are vying for acceptance for the recovery of sulfur from lowquality acid gas streams less than 40 mole% h 2 s, or if recovery is required for very low mass flow rates of sulfur production i. Cooperation with federal agencies and officially credentialed. Click the edit button to bring up a form to enter the composition of this stream. The control of a sulfur recovery claus plant has been using simple. Steady state and dynamic modeling of the modified claus process. Sulsim sulfur recovery in aspen hysys v9 aspentech. Nielsen, in gas purification fifth edition, 1997 background. Aspen hysys hysys for short, a portmanteau from hyprotech and systems is the one of the top leading chemical process simulator in the market or at least in the chemical engineering world hysys is used extensively in industry due to its steadystate and dynamic simulation, process design, performance modelling, and optimization.
The multistep claus process recovers sulfur from the gaseous hydrogen sulfide found in raw natural. Process models are used at all stages in the life cycle of process plants, from process development, design and to also in plant operation. The process of synthesis of nitric acid from ammonia by ostwalds process is simulated in simulation software aspen hysys 6. A new scale pv after applying the gain option for scaling the input signal in transfer function blocks was implemented. Process simulation using hysys v8 process simulation using aspen hysys v8 why aspen hysys. Figure 1 is a sulfur recovery process applicability chart which presents the relative ranges of technology applications. Details such as nozzle and vessel elevations, compressor performance.
First patented in 1883 by the chemist carl friedrich claus, the claus process has become the industry standard. Build the model by adding stream and equipment on at a time 6. Configure the thermal and catalytic stages of the recovery process. Build a sulfur recovery unit 3 stage claus process in aspen hysys. The process consists of multistage catalytic oxidation of hydrogen sul. A simulation of claus process via aspen hysys for sulfur. Aspen as we build a simulation of an acetonewater extractiondistillation process.
The modified claus process is one of the most common methods for sulfur recovery from acid. Use the hysys utilities to get additional information such as the mechanical design column trays 8. The claus process is a technological invention patented in 1883 by chemist. The sulfur recovery process employs a modifiedclaus reaction that captures elemental sulfur from hydrogen sulfide, carbonyl sulfide, carbon disulfide, sulfur. Refers in this manual to a group of raw materials made of e. The level of detail and the integrated utilities available in hysys allow for skillful.
The steps to set up this simulation in previous versions of hysys back to v8. It involves thermal oxidation of hydrogen sulfide and its reaction with sulfur dioxide to form sulfur and water vapor. Reaction furnace is the most important part of the claus sulfur recovery unit and its. Lekhwair natural gas sweetening plant using aspen hysys, journal of natu.
Establish a reliable cdu configuration, determine process conditions using hysys and match these with the original plant design basis and requirements, properly decompose the structure of the cdu and determine boundary conditions for optimization, achieve a reliable process optimization in the context of. Materials for participants module instruction sequence. American institute of chemical engineers wiley, 2019. In that period, its appli cation was extremely difficult due to the technical problem of handling the large amount of heat generated by the process. Pdf control of claus unit tail gas in an oil refinery researchgate. Process and plant design for 99% sulfur recovery from sour gas. In hysys there is a limited online help package, which can be obtained using the help command from the menu bar or by pressing the f1 key.
Hysys design tutorial for chee i i i queens university. The simulation protects the environmental impact by so 2 emission. The following pages will guide you through building a hysys case for modeling this process. Pdf process simulation using hysys v8 process simulation. The claus process f the claus process was developed around 1890 and was based on passing h2s and air over a catalyst. This reduction in overhead costs is reflected in our competitive pricing. Process simulation using hysys v8 process simulation using aspen hysys v8. Additional information on hysys thermodynamics packages can be found in the simulation basis manual appendix a. Materials for participants module instruction sequence and. An example flowsheet of the acid gas process in aspen hysys. Sep 14, 2017 this particular hysys 20 training manual pdf file is registered in our database as tqnbuzwude, with file size for approximately 182. Chemical process simulation and the aspen hysys software.
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