ISSN 2086-5953
Figure 5. Bioethanol production machines first stage
Description: 1. Vacuum pump
2. Condenser 3. Container bucket Bioethanol
4. Reactor + mixer 5. Waste extract window gelatin
6. Heater
2.2 Bioethanol Production Process
In principle, a bioethanol production process is almost the same stage bioethanol production
process of three stages. It was only in the production process, the third stages are summarized
into a single stage for the creation of efficient and effectiveness of production. The production flow as
depicted in scheme below:
Figure 6. Bioethanol production flow first stage
Production process with three stages, every stage is done by division of space and time. Stage
of hydrolysis by a bacterium will produce glucose, then in the fermentation process are also using
different types of bacteria when menghiodrilis starch selolusa. This because there are some
bacteria that are not capable of doing the second phase these. After fermentation is successful, then
the results of these fermentation brought back to the place of distillation for ethanol purification 99 of
other materials. This is considered less efficient and effective because of migration in addition to cost
and where are also relatively longer, making it difficult to maintain continued.
By applying the method of production of one stage, third stage intended to be immediately
implemented in one place. Waste agar-agar Initially created to extract, it is intended to clean up waste
order from other components with the assumption that treatment does not damage Waste to waste-
Extracting Process cellulose in the waste. Waste then inserted through the place which have been
provided to the reactor see figure 4. Inside the reactor
Clostridium thermocellum cultures have
previously been provided. The bacteria are able to hydrolyze cellulose to glucose as well as conduct
fermentation of glucose produced by him alone. So, in the reactor There also will be referred to
fermented
products such
as ethanol.
Simultaneously, the space heaters will continue to supply heat to the reactor, between 70-100
o
This is done in accordance with the optimum conditions which are owned by bacterium
Clostridium thermocellum to grow up and move
once the temperature which allows for the ethanol evaporates into gas. Heater intended to be done
diberikaan directly from the fiery furnace, and boiler. In this case more advised to use the boiler to
ensure easy in regulating the temperature and pressure. Stirrer in the reactor is always spinning,
this is intended to maintain the mobility of bacteria that can used continuously and aeration menjagaa
standards required by these bacteria to live.
With the help of the vacuum pump, gas will go into ethanol done some space to a condenser for
condensation condensation. Obtained from condensation of moisture which will then be
bioethanol and ditampunng in the container while the temperature setting and pressures that maintain
the quality of bioethanol for use commercialized to the public. This production capable of running
continuously, provided that the supply of waste water agar containing cellulose remains available,
as well as maintenance of equipment and bacteria in it awake [9]. That is, bacteria existing in the
reactor must remain supervised in order to stay alive and able to metabolic activities optimally.
2.3 Analysis of Economic Aspects
