Hi I am using REQUIL to predict conversion in isothermal water ga sshift reactor. I do not know conversion beforehand. what s typicall approach to equilibrium temperature should i set? do i need to know conversion beforehand?
FYI, approach temperature is basically optional if you are happy with equilibrium conversion. If you want to simulate a real process where the conversion is usually slightly lower than Xequil you need to modify approach T, but this really depend on experimental data..If you dont have any experimental data maybe using Xequil would be OK
I don't think you can incorporate Fotran statement for RSTOIC, because RSTOIC require information conversion or molar extend and therefore chemical reaction
@@zeeshanulhaq1976It really depend on your feed..if your solid with conventional component maybe u can specify reaction for drying..but if it is biomas i dont think u can use stoic without getting error of imbalance equation etc..maybe there is a solution if you use rstoic but i never encounter one so far
@@MohamadReziAbdulHamid this type of model is already used in paper now I am trying to resimulate the paper. the following type of error occur during simulaiton Error(s) encountered before beginning calculations:The Component/Substream attribute referenced has not been initialized ;in the block paragraph. Therefore it cannot be referenced in this block
Click 'Input' from the Summary section of the Home ribbon to locate the source of this error
@@zeeshanulhaq1976 to be honest, i cannot tell exactly without evaluate the whole simulation...this probably will not help you that much though but i feel that the code not exactly refer to the desired component or they just not able to recall
u can use ryield if u know the product composition/mass flow/ leaving the reactor for example from experimental data...that the simplest way but whats the point because u already know the result from experimental data.. I also see people simulate breakdown the biomass based on ultimate analysis (ethesis.nitrkl.ac.in/3197/1/thesis.pdf). Some people use reaction kinetics - FORTRAN statement + calculator block (Advanced simulation of biomass gasification in a fluidized bed reactor using ASPEN PLUS, Simulation of hybrid biomass gasification using Aspen plus:A comparative performance analysis for food, municipal solidand poultry waste)
@@avinash8346 I dont know..it all depend on your objective, information you have, etc. I am just listing several things ppl have done to simulate breakdown of biomass
Nice and informative
Thank you so very much, I learn a lot from you today.
Very interesting.
But I could not find Where is the biomass was defined?
Love it! Thank´s
Please link to the textbook
Hi I am using REQUIL to predict conversion in isothermal water ga sshift reactor. I do not know conversion beforehand. what s typicall approach to equilibrium temperature should i set? do i need to know conversion beforehand?
FYI, approach temperature is basically optional if you are happy with equilibrium conversion. If you want to simulate a real process where the conversion is usually slightly lower than Xequil you need to modify approach T, but this really depend on experimental data..If you dont have any experimental data maybe using Xequil would be OK
at 12:07 where do you get the number 7350 from. also the same question for alle the componments at 12:07 - 12:51
never mind. was obviously from the massflow stream. makes sense
is there any way of using Rstoich for drying of nonconventional feed? how to add reaction if we are intending to remove moisture from our feed?
I suggest you to read this paper...www.sciencedirect.com/science/article/pii/S0961953411003291
Thanks
when we are adding Rstoic for drying and put the Fortran statement for it, then what we have to enter in the reaction of Rstoic
I don't think you can incorporate Fotran statement for RSTOIC, because RSTOIC require information conversion or molar extend and therefore chemical reaction
@@MohamadReziAbdulHamid i put it and then give information about molar extend simulation was run then
@@zeeshanulhaq1976It really depend on your feed..if your solid with conventional component maybe u can specify reaction for drying..but if it is biomas i dont think u can use stoic without getting error of imbalance equation etc..maybe there is a solution if you use rstoic but i never encounter one so far
@@MohamadReziAbdulHamid this type of model is already used in paper now I am trying to resimulate the paper. the following type of error occur during simulaiton
Error(s) encountered before beginning calculations:The Component/Substream attribute referenced has not been initialized ;in
the block paragraph. Therefore it cannot be referenced in this block
Click 'Input' from the Summary section of the Home ribbon to locate the source of this error
@@zeeshanulhaq1976 to be honest, i cannot tell exactly without evaluate the whole simulation...this probably will not help you that much though but i feel that the code not exactly refer to the desired component or they just not able to recall
I have a reaction Biomass -> Volatile matter + Char how can i use ryield in this??
u can use ryield if u know the product composition/mass flow/ leaving the reactor for example from experimental data...that the simplest way but whats the point because u already know the result from experimental data.. I also see people simulate breakdown the biomass based on ultimate analysis (ethesis.nitrkl.ac.in/3197/1/thesis.pdf). Some people use reaction kinetics - FORTRAN statement + calculator block (Advanced simulation of biomass gasification in a fluidized bed reactor using ASPEN PLUS, Simulation of hybrid biomass gasification using Aspen plus:A comparative performance analysis for food, municipal solidand poultry waste)
ok so i should calculate the output using proxan and ultimate analysis.thanks a lot
@@avinash8346 I dont know..it all depend on your objective, information you have, etc. I am just listing several things ppl have done to simulate breakdown of biomass
poggers video