COMPARISON PRODUCTION BIOETHANOL FROM CELLULOSE USING BATCH DISTILLATION AND FLASH DISTILLATION PROCESS

The process of distillation in either a batch distillation or flash distillation each have positions and disadvantages, and the areas of batch distillation that have high columns can be synchronized with some the stage more than one phases, and flash distillation have tall columns that matched equally to one step. The advantages of flash distillation have a shorter distillation time versus batch distillation, distillation bioethanol yield on flash batch distillation more than it is. This research aims to get purer bioethanol, more amount of bioethanol as well as shorter time. Bamboo contains cellulose and high glucose, reduce the amount of lignin and pentose with pretreatment and lignification process, filtrate glucose produced in the fermentation using enzymes. From the process of fermentation obtained bioethanol with 15%, then conducted the process of distillation, with variable timing and temperature. Bioethanol achieved with the levels of approximately 95%, of the process of batch distillation bioethanol yield obtained is smaller, longer time and higher levels of the flash distillation process, obtained yield bioethanol larger, shorter time and the lower levels. Keywords: Batch, bioethanol, cellulose, flash