MMBtu/hr burns fuel oil of the analysis shown below.

What are the estimated emission rates?

(1) Using table 3-4, particulate emissions are

given as [10(S) + 3] pound/I 000 gal, where

(2) Using table 3-5 (footnote d), NOx emissions

S is the percent sulfur in the fuel oil.

are given as 120 pound/MCF of natural gas.

(2) Using table 3-4, SO2 emissions are given as

157S pound/1000 gal, where S is the percent

sulfur in the fuel oil.

fired boiler without reinjection burns bark and coal in

combination. The bark firing rate is 2000 pound/hr.

The coal firing rate is 1000 pound/hr of bituminous

coal with an ash content of 10 percent and a heating

value of 12,500 Btu/pound. What is the estimated

(3) Using table 3-4, NOx emissions are given as

particulate emission rate from this boiler?

[22 + 400 (N)2] pound/1000 gal, where N is

(1) Using table 3-6, the bark firing particulate

the percent nitrogen in the fuel oil.

emission rate is given as 50 pounds/ton of

fuel.

50 pounds/ton x ton/2000 pounds x 2000

pound/hr = 50 pounds/hr of particulate from

bark.

(2) Using table 3-3, the coal firing particulate

emission rate for a heat input of 12.5

MMBtu/hr is 13A pounds/ton of fuel.

(13 x 10) pound/ton x 1000 pound/hr x

rated at 10 MMBtu/hr fires natural gas with a heating

ton/2000 pound = 65 pounds/hr of

value of 1000 Btu/ft3. What are the estimated particu-

particulate from coal.

late and NOx emission rates?

(3) The total particulate emission rate from the

(1) Using table 3-5, particulate emissions are

boiler is,

given as a maximum of 15 pound per million

50 pounds/hr from bark + 65 pounds/hr

cubic feet (MC F) of natural gas.

from coal = 115 pounds/hr