GroupD_PresentationFinal_CurryJavedSingh
- 1. LEAH CURRY, SALMAN JAVED, KAVINDRA SINGH CHEMICAL ENGINEERING DEPARTMENT THE CITY COLLEGE OF NEW YORK SENIOR DESIGN CLASS
- 2. Overview 1. Introduc1on 2. Proposed Project 3. Aspen Simula1on a) Aspen PFD b) Equipment Selec1on and Cost 4. Economic Modelling 5. Sensi1vity Analysis 6. Conclusions and Recommenda1ons 7. Ques1ons
- 3. Introduc1on Hospitals Produce 5.9 million tons of waste annually, 15% of which is plas1c A lot of the waste is considered bio-‐hazardous, therefore, it is incinerated Syringes, gloves among the waste considered a bio-‐hazard—good candidates for pyrolysis
- 5. Base Case § 10 Tons of Plas1c consis1ng of 37% HDPE, 25% LDPE, 33% PP and 5% PS § Heat at 500 °C in an inert environment (pyrolyze) § Separate the gases from liquid and carbon black. § Expected produc1on 200 gallons of diesel/ton of plas1c
- 7. Mass Balance Input Output Plas1c Weight frac1on Product Weight frac1on HDPE 0.37 Light gases 0.30 LDPE 0.25 Diesel 0.70 PP 0.33 Carbon black >0.01 PS 0.05
- 11. Equipment Selec1on and Cost Equipment Cost (2014) Kiln $428,5251 Pump(s) $12,0302 Cyclone Separator $7,5263 Cooling Tower $4,0004 Storage Tank $31,1652 Heat exchanger(s) $6,5452 Extruder $35,5055 Condenser $4,6752 Total $529,970 All prices are normalized to April 2014 using CEPCI 1Perry’s Handbook 2Peter and Timmerhaus 3Honeyville Metals Inc. 4Cooling Tower Systems Inc. 5Plas1cs Technology Magazine, Vol.38, 1988
- 12. Economic Modeling Approxima1on method: Lang Cost Factor Es1ma1on This fluid processing plant therefore Lang Cost Factor: 4.74 Total Capital Cost $529,970 × 4.74 = $2,512,000
- 13. Economic Modeling Cost Analysis Expected Plant life 30 years Wholesale Diesel prices $2.25 USD/gallon Produc1on 730,000 gallons/annum Produc=on cost (per annum) Projected Revenue $1,642,500.00 Es1mated Total Capital Cost (2014) $2,512,058.00 Opera1on and Maintenance $593,971.00 Deprecia1on $17,666.00 Taxes $423,684.00 Profit $624,844.00 ROI 25% Time to recover investment 4 years
- 15. Base Case § 10 Tons of Plas1c consis1ng of 37% HDPE, 25% LDPE, 33% PP and 5% PS § Analog for Hospital plas1cs; does not contain biohazard agent § Plas1c waste cost: $30/ton § Expected produc1on 200 gallons of diesel/ton of plas1c
- 16. Effect of Market price of Diesel on ROI Base Case 18% ROI
- 17. Effect of Produc1on Rate, for four diesel price, on ROI Base Case
- 18. Conclusions and Recommenda1ons § It is feasible to convert Hospital plas1c waste into diesel § retains a high ROI at current and expected future market prices § Profitable enough to suggest research into using actual bio-‐hazardous hospital waste as feedstock. § Research Ø Precau1ons and OSHA Regula1ons/Cer1fica1ons Ø And the associated cost. § Possibility of being paid to process the bio-‐hazardous feedstock as to opposed to paying it