Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Ethanol can be produced by fermentation of sugars and is used as a gasoline blending component. Because the sugars can be derived from biomass, ethanol is potentially a renewable fuel. In the fermentation of cane sugar to ethanol, sucrose (C11H12O11 ) is converted by yeast ( saccharomyces cerevisae ) to yield ethanol and CO2. Some sucrose is also consumed in maintaining the cell culture in the fermentation reactor. The fermentation reaction can the carried out in a continuous reactor as long as the ethanol concentration does not execeed about 8 wt%, at which point the productivity of the yeast declines significantly . the sucrose is fed as a 12.5 wt% solution in water, which must be sterilized before it can be fed to the reactor. The sterilization is usually accomplished by heating with steam. Carbom dioxide is vented from the fermentation reactor. The liquid product of the fermentation reactor is sent to a hydrocyclone to concentrate the yeast for recycle to the reactor.The remaining liquid is sent to a distillation column known as a "beer column," which concentrates the alcohol to about 40 mol% ethanol and 60mol% water in the distillate. The recovery of ethanol in the beer column is 99,9%. The bottoms stream from the beer column contains the remaining components of the fermentation broth and can be processed for use as animal feed1. Draw a flowsheet for this process2. Estimate the steam flow rates and compositions for a production rate of 200,000 U.S. gal/d of dry (100%) ethanol.3. Estimate the ethanol lost in the CO2 vent gas.as4. Estimate the reboiler duty of the beer column Data1. Yield per kg sucrose: ethanol 443.3 g, CO2 488 g, nonsugar solids 5.3 g, yeast 21 g, fermentation by products 43.7 g, higher alcohols ( fusel oil) 2.6g2. Conversion of sucrose, 98.5%3. Yeast concentration in fermentation reactor as steady state, 32 wt%.
If the ramp height is 2ft. Using the ada code, what is the allowable minimum length of the ramp?
you deposit 10000 in a savings account that earns 7.5 simple interest per year. what is the minimum number of years you
a storage tank holds 75 cubic meters of a gas at 28deg c and a pressure of 130kpa. the gas appears to have a molecular
the diffusion constant do and activation energy q of c in bcc fe is 0.01 cm2sec and 80kjmol respectively. in fcc fe the
Given that an activity's normal time and cost are 10 days and $400 and its crash time and cost are 5 days and $800, what is the activity's slope?
A process with Gp= 2/(2s+1) and Gd=1/(2s+1) experiences a disturbance step change of magnitude 5. The SP remains constant. If a P-controller alone with Kc=1 is used and Ga=Gs=1, then what is the output variable, delta Y(t) versus time?
a steam power plant implements an ideal reheat rankine cycle. steam enters the inlet of the high-pressure turbine at 8
steam at 95 bar and 400 c is supplied in turbine. the condenser pressure is 0.035 bar. if the plant operates as a
a new containment vessel for nuclear waste is being tested by a group of engineersnbspworking for the u.s. department
What is the communication time if the local conditions limit spacecraft visibility to elevation angles larger than = 18 degrees?
the base surface of a cubical furnace 3-m x 3-m x 3-m is surrounded by black surfaces at a 1200 k. specified
Under what conditions would the use of carburetor heat be detrimental?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd