Sulfur recovery design system SULSIM

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This post was last edited by Shandong Huaxing on 2010-8-26 00:11. Sulsim 6 features an interactive graphical interface that allows us to make comprehensive settings for the entire sulfur recovery process as well as for the unit operations commonly used in improved Claus processes, including incinerators and other exhaust gas treatment units. The interactive setup function allows us to add or remove operational units within the processes supported by the software; these processes typically include improved Claus processes, sub-temperature Claus processes, selective oxidation, and various exhaust gas treatment processes. Then the desulfurization process we have determined can be displayed graphically on the screen. This high level of flexibility enables us to effectively simulate all sulfur recovery processes associated with gas treatment plants and refineries. In the program, the Klaus reactor and any point in the downstream processes support multiple feed streams, and it also supports the recycling of process gases. This enables us to process various feedstocks, such as acid gas removal gas, amine plant regeneration gas, fuel gas, and exhaust gas recycle streams. The software uses a sequential calculation method to accurately compute the material balance and heat balance from the reactor to the incinerator or exhaust gas treatment unit. Sulsim 6 supports running multiple parallel calculation processes (up to 4) in a single simulation file to simulate the entire sulfur recovery process. Sulsim 6 also supports a portion of the entire process to simulate any combination of one or several units within that process. Features of Sulsim 6: The integration with HYSYS/AMSIM allows Sulsim 6 to run directly within the HYSYS framework, enabling us to perform accurate simulations of complex processes that include sulfur recovery and flue gas treatment units. The results are exported to a spreadsheet. Sulsim 6 now includes a function for exporting data to Excel, which can be accessed through the menu bar under “File---Export to Excel”. This output function transfers the results of the simulations to a newly created Excel workbook, with data including material balance calculations, summaries of equipment operation status, and summaries of composition data. Material balance includes a flow diagram generated by Sulsim as well as the calculated property data such as temperature, pressure, enthalpy, and composition. The information in the table is set by the user. The flow diagram (PFD) includes information on all material flows in the process. This graph can be configured as required in Sulsim and exported to Excel. l Deletion prompt: When deleting an object in the process, Sulsim 6 will prompt the user for confirmation. For file handling, Sulsim 6 supports the files from Sulsim 5 and adds some advanced file handling features. Sulsim 6 also inherits some of the good features of Sulsim 5, including: an improved simulation of the reactor; thermodynamic models and empirical kinetic models for rich and lean liquid feeds; special models for ammonia combustion and oxygen-enriched conditions; and output settings that match the composition results measured in plants. Empirical simulation of the catalytic hydrolysis process of lCOS and CS2: Temperature and catalyst conditions derived from empirical data can accurately predict the extent of hydrolysis. L-converter dew point optimization program: Automatically converges to a pre-set dew point margin within each catalyst bed layer. A new empirical model for reactions in waste heat exchangers: A new systematic empirical model is proposed to simulate the reactions of several substances (such as H2, CO, COS, and H2S) in waste heat exchangers. Convergence criteria: The convergence criteria can be adjusted to speed up the simulation process. Flexible air conditioning: The conditions of the exhaust gases can be set as “air parameters”, “the ratio of H2S to SO2”, “the concentration of H2S”, or “the concentration of SO2”. Technical information on Sulsim 6: The user interface allows Sulsim 6 to display specific processes graphically on Windows platforms, and it also enables flexible input and output of files, which can be sent to the screen, printer, or disk files. The program supports multiple calculation sequences in a single simulation file, as well as opening multiple files on the screen at the same time. Sulsim 6 provides users with a large number of tables for printing and saving, and the content of these tables allows for selective output of data based on the user’s needs. Typical output data includes: ☆ The total flow rate of materials, as well as the percentage composition of components or the molar flow rates of these components; ☆ The material and energy balances for each unit operation, along with the overall balance for the entire process; ☆ Summaries of data related to each unit operation, including heat load, single-pass and cumulative conversion rates, recovery rates, calculated flow rates, temperatures, and dew points, as well as air parameters and the vapor and liquid flow rates of sulfur. Sulsim 6 can display the entire complex process on the screen, and users can also manipulate each unit as needed to shape the process to their requirements. Users can also generate copies of flowcharts through the program. The real-time display function on the screen also allows users to choose to display specific parameters directly (such as temperature, pressure, and the name of the unit operation). These data are automatically updated as the operating parameters and calculation results change. User-friendly interface: Sulsim 6 features a user-interactive interface design that incorporates many advanced commands and support functions. The program also comes with many default values, allowing users to carry out simulations even when they cannot provide all the data. The format of the thermodynamic data used in the thermodynamics and empirical data programs is the same as that used by McBride, and most of the data is also taken from there. The vapor data for sulfur come from Western Research; these data are derived from literature as well as laboratory and field data from improved Klesse reactions. The thermodynamic database used by the program includes 23 molecules, which can meet the needs of most improvements to the Claus sulfur recovery process. Furthermore, the program can generate all 9 gaseous sulfur phases, satisfying the simulation of any process. Like earlier versions, Sulsim 7 features an interactive heuristic user interface that allows users to intuitively design or simulate any type of sulfur unit. Simply using the module will meet your needs. All the key process units are available, including: the improved Claus process, sub- dewpoint Claus beds, selective oxidation units, and exhaust gas purification units. You can freely add auxiliary processes and equipment, such as those for oxidation and post-heater operations, to meet your specific needs. This high level of flexibility enables the simulation of sulfur units in various processes in the gas purification or petroleum refining industries. For example: the Klaus reactor supports multiple feed streams, and this is also possible at any point downstream. In addition, the program also supports the recycling of process gas streams. In this way, the program can support different types of feed streams, such as acid water stripping gas, regeneration gas from amine units, fuel gas, and exhaust gas recycle streams. The calculation of Sulsim®7 employs a sequential algorithm that runs from the reactor to the gas treatment and incineration units, providing complete mass and heat balance calculations for each unit. Sulsim 7 supports multiple (up to 6) parallel process chains, enabling the simulation of the entire complex sulfur recovery process in a single simulation. Sulsim 7 also supports partial structures of units to simulate individual devices or combinations of devices during a process. With Sulsim7’s user-friendly interface, you have full control. Sulsim7 uses the Windows platform to create and display your processes; you can freely choose to output the reports to the screen, printer, or Excel spreadsheet. The program supports simulating multiple circuits in a single user file, as well as opening multiple files simultaneously. User-friendliness: The design of Sulsim 7 is fully interactive, equipped with advanced command programs and a help system. If necessary, the system provides a set of preset default values via a program to enable simulation even when the user does not have complete data. Sulsim7 retains all the advantages of Sulsim6, and now also includes the following features: a component list has been added for all streams; gas-phase transfer properties have been added for all streams; physical properties of liquid sulfur have been added; steam calculations on the utility side have been added for all reboilers, condensers, post-heaters, and pre-heaters; complete steam tables have been added for various unit calculations; features for determining equipment sizes to calculate the residence time in reaction reactors have been added; size calculations for Claus converters and space velocity calculations for hydrogen generators have been added; new unit operations have been added; calculations for new installations, including heat loads for burners and quench towers, etc.; the number of simulations that can be performed with a single file has been increased; new interface features have been added, including file annotations and a simpler way of entering data on the screen