Simulation of gasification in ASPEN
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There are several questions regarding the gasification simulation example solid2 that comes built into ASPEN: 1. Why are there no definitions for the specific components of coal in the component settings? Is it because the database values for coal are being used, that is, the default values?； 2. Why are there no values such as the coal flow rate in the logistics (stream)? ； 3. In BLOCK’s DECOMP, how is yield defined? I seek advice from fellow sailors!
I tried it myself and took another look; it seems that the specific composition of the coal needs to be defined in STREAM, including the preliminary and final analyses as well as the data on sulfides. What should be done with the rest? I also saw in the materials that certain models or empirical approaches are needed to predict the distribution of the products in DECOMP, such as the CPD model; so what model is used in SOLID2? Also, how were the formulas in the dehydration module derived?
Coal is defined as COAL, with unconventional components
You can enter “coal” in the components field to find it; the system allows for custom settings, right?