CHEMICAL QUES

1- An industrial furnace burns No. 4 residual oil with a heating value of 135,000 Btu/gal. Based on the emission factors given in Table 5-4, is a particulate collector required to meet a state emission standard of 0.10 lb/106 Btu?

2- Two particulate collectors are in series. The fractional efficiency for size dp in the upstream device is 80 percent, and for the downstream device the efficiency is 60 percent. Find the overall removal efficiency for size dp.

3-A spreader stoker is used to burn coal containing 8 per cent ash. The flue gas from burning 1 lb of coal is 170 ft3. What is the maximum dust loading of PM in combustion gas in grains per cubic foot?

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NOTE :

I do have the final answer for Q2 and Q3 as shown below:

The answer of Question Number 2 is 92 percent . The answer of Question Number 3 is 1.35 grains per cubic foot. Hunt: you should use Table 5-4 in Question number 3.