Input for the batch reactor Rbatch in Aspen
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What is being simulated here is a semi-continuous reaction: one stream involves a single batch feed of 200 kg, while another stream features a continuous feed at a rate of 300 kg/h for a duration of 2 hours. The required reaction time is 4 hours. How should these values be entered in the stop criteria and operation times fields? Additionally, on page P148 of Sun Lanyi’s book, the reaction time specified in the stop criteria is 1.5 hours, while the maximum calculation time allowed in the operation times field is set at 2 hours. Since 2 hours is greater than 1.5 hours, does this make sense? Why are these values entered in this way? Thank you
For simulating a semi-continuous reaction using the batch reactor Rbatch in Aspen, if one feed stream is a continuous feed of 200 kg at once, and another is also a continuous feed with a flow rate of 300 kg/h over a duration of 2 hours, while the reaction requires 4 hours, then 4 hours should be entered in the stop criteria, and 6 hours should be entered in the operation times (2 hours of continuous feeding + 4 hours of reaction time). In Sun Lanyi’s book, the reaction time specified in the stop criteria is 1.5 hours, while the maximum calculation time required in the operation times is 2 hours. These 2 hours actually refer to the maximum calculation time for the entire reaction process, including the waiting time before the reaction, the reaction time itself, and the time required to isolate the product. Therefore, it should be set to a value greater than the reaction time to ensure that the calculations can be completed. .