Page 377 - Materials Chemistry, Second Edition

L1644_C08.fm Page 339 Tuesday, October 21, 2003 3:03 PM

TABLE 8.19
Inventory of Process for Separating Isopentane from Naphtha
Isopentane
Flow Units TOTAL Steam separation Electricity
production generation
Inputs
(r) Coal (in ground) kg 113.64 0 0 113.64
(r) Natural gas (in kg 2.64 × 10 –2 2.64 × 10 –2 0 0
ground)
(r) Oil (in ground) kg 2.12 × 10 –2 2.12 × 10 –2 0 0
(r) Air kg 215.09 0 0 215.09
Naphtha (# 1) kg 72,543.60 0 72,543.6 0
Naphtha (# 2) kg 28,713.10 0 28,713.1 0
Water used (total) liter 1,968.56 2.48 × 10 –1 0 1,968.32
Water: unspecified liter 2.48 × 10 –1 2.48 × 10 –1 0 0
origin
Outputs
(a) Carbon dioxide g 218,278 140.29 0 218,138
(CO 2 , fossil)
(a) Carbon g 4.58 × 10 –2 4.58 × 10 –2 0 0
monoxide (CO)
(a) Hydrocarbons g 1.93 1.93 0 0
(unspecified)
(a) Lead (Pb) g 144.07 0 0 144.07
(a) Mercury (Hg) g 3.44 × 10 –1 0 0 0.34
(a) Metals g 9.17 × 10 –1 9.17 × 10 –4 0 0
(unspecified)
(a) Nitrogen oxides g 444.75 1.38 0 443.38
(NO x as NO 2 )
(a) Particulates g 1.81 1.19 × 10 –1 0 1.69
(unspecified)
(a) Sulfur oxides g 1,015.88 1.28 0 1,014.6
(SO x as SO 2 )
(a) Fugitive g 837,000 0 837,000 0
emissions (VOC)
(w) BOD5 g 9.17 × 10 –4 9.17 × 10 –4 0 0
(biochemical
oxygen demand)
(w) COD g 9.17 × 10 –4 9.17 × 10 –4 0 0
(chemical oxygen
demand)
-- continued

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