The off gases from a gasoline stabilizer are fed to a steam reforming plant to produce hydrogen.

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The off gases from a gasoline stabilizer are fed to a steam reforming plant to produce hydrogen. 

The composition of the off gas, molar%, is CH4 77:5, C2H6 9:5, C3H8 8:5, C4H10 4:5.

The gases entering the reformer are at a pressure of 2 bara and 35 8C and the feed rate is 2000 m3/h. 

The reactions in the reformer are  

1. CH2n+2 + n(HO)  n(CO) + (2n + 1)H 2. CO + H2O  CO2 + H2

The molar conversion of C2H2n+2 in reaction (1) is 96% and of CO in reaction (2) 92%.

Calculate 

i. The average molecular mass of the off gas; 

ii. The mass of gas fed to the reformer, kg/h; 

iii. The mass of hydrogen produced, kg/h.  

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Related Book For  book-img-for-question

Chemical Engineering Design

ISBN: 9780128211793

3rd Edition

Authors: Gavin Towler, Ray Sinnott

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