4- disscuss the diffrence amoung number of theortical tray required for zero ref

Question

4- disscuss the diffrence amoung number of theortical tray required for zero reflux , minimun reflux and total reflux situations in binary distillation of a mixture of benzene and toluene ? Chemical engeering mass transfer 4- disscuss the diffrence amoung number of theortical tray required for zero reflux , minimun reflux and total reflux situations in binary distillation of a mixture of benzene and toluene ? Chemical engeering mass transfer 4- disscuss the diffrence amoung number of theortical tray required for zero reflux , minimun reflux and total reflux situations in binary distillation of a mixture of benzene and toluene ? Chemical engeering mass transfer

Explanation / Answer

For this given separation (i.e. constant xD and xB) from a given feed condition (xF and q), using a higher reflux ratio (R) will results in lesser number of theoretical trays (N) required, and vice versa.

Total reflux is an extreme case, the number of theoretical trays required is at its minimum to obtain a given separation of benzene and toluene.

Minimum Reflux will require infinite number of theoretical trays to obtain a given separation of benzene and toluene.

Since, Zero reflux is a the extreme case of Minimum reflux, it will also require infinite numbers of theoretical trays toobtain a given separation of benzene and toluene.

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