Urgent need, please! Yield issues in continuous reforming units, online, etc
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This post was last edited by sdwfsgyykai on 2019-5-23 at 16:32. Could any experienced member tell me how to calculate the liquid yield and aromatic conversion rate in a continuous reforming unit? Thank you so much!
The liquid yield is equal to (pentane oil + high-octane gasoline + liquefied gas) / reforming feed. The aromatic conversion rate is equal to the liquid yield / the potential content of aromatic compounds in the feedstock
1. First, the calculation of the aromatic conversion rate upstairs is incorrect: the reformation aromatic conversion rate (m%) = aromatic yield (m%) / aromatic potential content (m%). The aromatic yield (m%) refers to the percentage of aromatics in the reformed oil relative to the total amount of oil produced. The aromatic potential content refers to the percentage by mass (m%) of the sum of the amount of aromatics obtained by converting all the naphthenes in the reforming feedstock into aromatics and the amount of aromatics already present in the feedstock. The calculation method is as follows: Potential aromatic content (%)=Potential benzene content + Potential toluene content + Potential C8 aromatics content. Potential benzene content (%)=C6 naphthenes (%)×78/84 + Benzene (%) Potential toluene content (%)=C7 naphthenes (%)×92/98 + Toluene (%) Potential C8 aromatics content (%)=C8 naphthenes (%)×106/112 + C8 aromatics (%) Since some aromatics are obtained through the isomerization and dehydrogenation of alkanes, these alkanes are not included in the aromatic potential; therefore, the aromatic conversion rate in reforming units is generally above 100%. 2. Regarding the liquid recovery from the unit, it depends on whether your company requires the calculation of liquefied gas; if so, the calculation method will be the same as that used upstairs.