| dc.description.abstract | The preliminary design of Ethylene 99,95% with the capacity of 50.000 tons/year
was produced from dehydration gas of bioethanol with catalyst zeolit acid. This
plant will operate 330 days a year and 24 hours a day, will need ethanol as raw
material 87,428 tons/year and catalystzeolit acid 5,1552 tons/year. This plant will
need water 108745,80 kg water/hour, fuel gas 435.600 kg/hour and total
electricity 898,0324 Hp. This plant will be built at industrial zone in Cirebon,
West Java Province, needs about 1,0454 hectare land and 141 total workers. The
Ethylene production could be devided into three major step, there are material
preparation, chemical reaction, and the last step is purification product. The first
step is raw material preparation, vapourize ethanol and than heating this vapour in
heater and three heat exchanger to maketheese vapour suitable as reactor feed at
658,24 K and 1 atm. The next step is chemical reaction between ethanol vapour
and catalyst zeolit acid in the solid phase, with 95,8% of ethanol will be
converted to ethylen. The last step from ethylene production is purification
product with minimum 99.95% ethylene content in the product.
Total Fixed Capital Investment (FCI) for this plant is US $ 26.241.669,65 and
Working Capital US $ 17.623.514,70. This is low risk plant. From economic
evaluation we know if net profit after taxes is US $ 3.431.573,42/year, with
Return on Investment (ROI) 13,08 %, Pay Out Time (POT) 4,3 years, Break Event
Point (BEP) 48,18 %, and Discounted Cash FlowRate (DCFR) 14,30 %. Base on
the results we have conclusion that this ethylen from dehidration bioethanol with
catalyst zeolitacid with capacity 50.000 tons product/year is feasible. | en_US |
