PEMANFAATAN METODA NEWTON-RAPHSON DALAM PERANCANGAN REAKTOR ALIR TANGKI BERPENGADUK S

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Publication Type:

Journal Article

Source:

Jurnal Teknologi IST AKPRIND, Volume 2, Number 2 (2009)

Keywords:

konversi, metoda Newton-Raphs, volume reaktor

Abstract:

The design of continuous stirred tank reactor (CTSR) is to determine volume of the reactor needed to achieve a certain conversion. In a steady state isothermal process, which there are no volume and concentration change toward the time, mass balance and rate of reaction equation can be formulated.
In reversible reaction of isomerization of normal-butane to iso-butane, it can be determined the correlation between reaction conversion and temperature and the heat balance which is show the correlation between conversion and temperature from the data of heat reaction and equilibrium constant. Based on the thermodynamic equilibrium and conversion, the equilibrium conversion and temperature of process can be calculated by using the Newton-Raphson method.
In the design of CSTR, optimization of the number of tank series is important to know the total cost of reactor. The volume of each reactor in the four tanks in series is calculated.
In the reaction equilibrium of the formation iso-butane from isomerization of normal-butane with the feed temperature is 330 K and the equilibrium temperature is 360.99K, the conversion about 72.62% was obtained. For conversion up to 67.8% in the isothermal condition (T=330 K), with the assumption that the reaction is the first order of normal-butane (A) and first order of iso-butane (B), the calculated volume of each reactor in one reactor, two, three, and four reactors in series is 7.817,5 gallon, 1.897,5 gallon, 1.016,0 gallon, and 569,5 gallon, respectively.

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