DEAC-7-1109 1109 Emissions of Sulfur Compounds From Industrial Operations DE

The emission of sulfur dioxide from process operations shall be controlled to a limit that shall meet the ambient air quality requirements.

For all tables in this regulation, unless otherwise indicated, the emission limitation for a production rate between any 2 consecutive production rates shall be determined by linear interpolation.

For all tables in this regulation, unless otherwise indicated, the emission limitation for a production rate above the maximum production rate or below the minimum production rate shall be determined by linear extrapolation.

No person shall cause or allow the emission of sulfur dioxide in the tail gases from any existing sulfuric acid manufacturing operation to exceed either a concentration of 1,000 parts per million by volume or a mass emission rate as specified in Table 2-1 of this regulation.

TABLE 2-1

ALLOWABLE MASS EMISSION RATE OF SULFUR DIOXIDE FROM

EXISTING SULFURIC ACID MANUFACTURING OPERATIONS

Production Rate (Tons per Day) | Mass Emission Rate (Pounds per Hour) 100 | 75 300 | 210 500 | 345 700 | 480 900 | 615 1,100 | 750 1,300 | 885 1,500 | 1020

No person shall cause to be discharged into the atmosphere from any existing sulfuric acid plant any gases which contain acid mist, expressed as H 2 SO 4 , in excess of 0.25 g per kg of acid produced (0.5 lb per ton) the product being expressed as 100% H 2 SO 4 .

The provisions of subsection 2.2 of this regulation shall not apply to acid plants used as sulfur dioxide control systems, to chamber process plants, to acid concentrators or to petroleum storage and transfer facilities.

The reference methods used to determine compliance with standards prescribed in subsection 2.2 of this regulation shall be those set forth in 1.5 of 7 DE Admin. Code 1120 .

No person shall cause or allow the emission of sulfur dioxide in the tail gases from existing sulfur recovery operations to exceed either a concentration of 2,000 parts per million by volume or a mass emission rate as specified in Table 3-1 of this regulation.

TABLE 3-1

ALLOWABLE MASS EMISSION RATE OF SULFUR DIOXIDE

FROM SULFUR RECOVERY OPERATIONS

Production Rate (Tons per Day) | Mass Emission Rate (Pounds per Hour) 50 | 425 100 | 550 200 | 800 300 | 1,050 400 | 1,300 500 | 1,550 600 | 1,800 700 | 2,050 800 | 2,300 900 | 2,550 1,000 | 2,300

Except as provided in Section 11.0 of 7 DE Admin. Code 1120 , NEW SOURCE PERFORMANCE STANDARDS, no person shall cause or allow the emission of sulfur dioxide in the tail gases from new sulfur recovery operations to exceed either a concentration of 2,000 parts per million by volume or a mass emission rate as specified in Table 3-1 of this regulation.