[Code of Federal Regulations]

[Title 40, Volume 12]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR63.1512]



[Page 75-78]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 63_NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR 

SOURCE CATEGORIES--Table of Contents

 

Subpart RRR_National Emission Standards for Hazardous Air Pollutants for 

                      Secondary Aluminum Production

 

Sec.  63.1512  Performance test/compliance demonstration requirements and 

procedures.



    (a) Aluminum scrap shredder. The owner or operator must conduct 

performance tests to measure PM emissions at the outlet of the control 

system. If visible emission observations is the selected monitoring 

option, the owner or operator must record visible emission observations 

from each exhaust stack for all consecutive 6-minute periods during the 

PM emission test according to the requirements of Method 9 in appendix A 

to 40 CFR part 60.

    (b) Thermal chip dryer. The owner or operator must conduct a 

performance test to measure THC and D/F emissions at the outlet of the 

control device while the unit processes only unpainted aluminum chips.

    (c) Scrap dryer/delacquering kiln/decoating kiln. The owner or 

operator must conduct performance tests to measure emissions of THC, D/

F, HCl, and PM at the outlet of the control device.

    (1) If the scrap dryer/delacquering kiln/decoating kiln is subject 

to the alternative emission limits in Sec.  63.1505(e), the average 

afterburner operating temperature in each 3-hour block period must be 

maintained at or above 760 [deg]C (1400 [deg]F) for the test.

    (2) The owner or operator of a scrap dryer/delacquering kiln/

decoating kiln subject to the alternative limits in Sec.  63.1505(e) 

must submit a written certification in the notification of compliance 

status report containing the information required by Sec.  

63.1515(b)(7).

    (d) Group 1 furnace with add-on air pollution control devices. (1) 

The owner or operator of a group 1 furnace that processes scrap other 

than clean charge materials with emissions controlled by a lime-injected 

fabric filter must conduct performance tests to measure emissions of PM 

and D/F at the outlet of the control device and emissions of



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HCl at the outlet (for the emission limit) or the inlet and the outlet 

(for the percent reduction standard).

    (2) The owner or operator of a group 1 furnace that processes only 

clean charge materials with emissions controlled by a lime-injected 

fabric filter must conduct performance tests to measure emissions of PM 

at the outlet of the control device and emissions of HCl at the outlet 

(for the emission limit) or the inlet and the outlet (for the percent 

reduction standard).

    (3) The owner or operator may choose to determine the rate of 

reactive flux addition to the group 1 furnace and assume, for the 

purposes of demonstrating compliance with the SAPU emission limit, that 

all reactive flux added to the group 1 furnace is emitted. Under these 

circumstances, the owner or operator is not required to conduct an 

emission test for HCl.

    (4) The owner or operator of a sidewell group 1 furnace that 

conducts reactive fluxing (except for cover flux) in the hearth, or that 

conducts reactive fluxing in the sidewell at times when the level of 

molten metal falls below the top of the passage between the sidewell and 

the hearth, must conduct the performance tests required by paragraph 

(d)(1) or (d)(2) of this section, to measure emissions from both the 

sidewell and the hearth.

    (e) Group 1 furnace (including melting holding furnaces) without 

add-on air pollution control devices. In the site-specific monitoring 

plan required by Sec.  63.1510(o), the owner or operator of a group 1 

furnace (including a melting/holding furnaces) without add-on air 

pollution control devices must include data and information 

demonstrating compliance with the applicable emission limits.

    (1) If the group 1 furnace processes other than clean charge 

material, the owner or operator must conduct emission tests to measure 

emissions of PM, HCl, and D/F at the furnace exhaust outlet.

    (2) If the group 1 furnace processes only clean charge, the owner or 

operator must conduct emission tests to simultaneously measure emissions 

of PM and HCl at the furnace exhaust outlet. A D/F test is not required. 

Each test must be conducted while the group 1 furnace (including a 

melting/holding furnace) processes only clean charge.

    (3) The owner or operator may choose to determine the rate of 

reactive flux addition to the group 1 furnace and assume, for the 

purposes of demonstrating compliance with the SAPU emission limit, that 

all reactive flux added to the group 1 furnace is emitted. Under these 

circumstances, the owner or operator is not required to conduct an 

emission test for HCl.

    (f) Sweat furnace. Except as provided in Sec.  63.1505(f)(1), the 

owner or operator must measure emissions of D/F from each sweat furnace 

at the outlet of the control device.

    (g) Dross-only furnace. The owner or operator must conduct a 

performance test to measure emissions of PM from each dross-only furnace 

at the outlet of each control device while the unit processes only dross 

and salt flux as the sole feedstock.

    (h) In-line fluxer. (1) The owner or operator of an in-line fluxer 

that uses reactive flux materials must conduct a performance test to 

measure emissions of HCl and PM or otherwise demonstrate compliance in 

accordance with paragraph (h)(2) of this section. If the in-line fluxer 

is equipped with an add-on control device, the emissions must be 

measured at the outlet of the control device.

    (2) The owner or operator may choose to limit the rate at which 

reactive chlorine flux is added to an in-line fluxer and assume, for the 

purposes of demonstrating compliance with the SAPU emission limit, that 

all chlorine in the reactive flux added to the in-line fluxer is emitted 

as HCl. Under these circumstances, the owner or operator is not required 

to conduct an emission test for HCl. If the owner or operator of any in-

line flux box which has no ventilation ductwork manifolded to any outlet 

or emission control device chooses to demonstrate compliance with the 

emission limit for HCl by limiting use of reactive chlorine flux and 

assuming that all chlorine in the flux is emitted as HCl, compliance 

with the HCl limit shall also constitute compliance with the emission 

limit for PM, and no separate emission test for PM is required. In this 

case, the owner or operator of the unvented in-line flux box



[[Page 77]]



must utilize the maximum permissible PM emission rate for the in-line 

flux boxes when determining the total emissions for any SAPU which 

includes the flux box.

    (i) Rotary dross cooler. The owner or operator must conduct a 

performance test to measure PM emissions at the outlet of the control 

device.

    (j) Secondary aluminum processing unit. The owner or operator must 

conduct performance tests as described in paragraphs (j)(1) through (3) 

of this section. The results of the performance tests are used to 

establish emission rates in lb/ton of feed/charge for PM and HCl and 

[micro]g TEQ/Mg of feed/charge for D/F emissions from each emission 

unit. These emission rates are used for compliance monitoring in the 

calculation of the 3-day, 24-hour rolling average emission rates using 

the equation in Sec.  63.1510(t). A performance test is required for:

    (1) Each group 1 furnace processing only clean charge to measure 

emissions of PM and either:

    (i) Emissions of HCl (for the emission limit); or

    (ii) The mass flow rate of HCl at the inlet to and outlet from the 

control device (for the percent reduction standard).

    (2) Each group 1 furnace that processes scrap other than clean 

charge to measure emissions of PM and D/F and either:

    (i) Emissions of HCl (for the emission limit); or

    (ii) The mass flow rate of HCl at the inlet to and outlet from the 

control device (for the percent reduction standard).

    (3) Each in-line fluxer to measure emissions of PM and HCl.

    (k) Feed/charge weight measurement. During the emission test(s) 

conducted to determine compliance with emission limits in a kg/Mg (lb/

ton) format, the owner or operator of an affected source or emission 

unit, subject to an emission limit in a kg/Mg (lb/ton) of feed/charge 

format, must measure (or otherwise determine) and record the total 

weight of feed/charge to the affected source or emission unit for each 

of the three test runs and calculate and record the total weight. An 

owner or operator that chooses to demonstrate compliance on the basis of 

the aluminum production weight must measure the weight of aluminum 

produced by the emission unit or affected source instead of the feed/

charge weight.

    (l) Continuous opacity monitoring system. The owner or operator of 

an affected source or emission unit using a continuous opacity 

monitoring system must conduct a performance evaluation to demonstrate 

compliance with Performance Specification 1 in appendix B to 40 CFR part 

60. Following the performance evaluation, the owner or operator must 

measure and record the opacity of emissions from each exhaust stack for 

all consecutive 6-minute periods during the PM emission test.

    (m) Afterburner. These requirements apply to the owner or operator 

of an affected source using an afterburner to comply with the 

requirements of this subpart.

    (1) Prior to the initial performance test, the owner or operator 

must conduct a performance evaluation for the temperature monitoring 

device according to the requirements of Sec.  63.8.

    (2) The owner or operator must use these procedures to establish an 

operating parameter value or range for the afterburner operating 

temperature.

    (i) Continuously measure and record the operating temperature of 

each afterburner every 15 minutes during the THC and D/F performance 

tests;

    (ii) Determine and record the 15-minute block average temperatures 

for the three test runs; and

    (iii) Determine and record the 3-hour block average temperature 

measurements for the 3 test runs.

    (n) Inlet gas temperature. The owner or operator of a scrap dryer/

delacquering kiln/decoating kiln or a group 1 furnace using a lime-

injected fabric filter must use these procedures to establish an 

operating parameter value or range for the inlet gas temperature.

    (1) Continuously measure and record the temperature at the inlet to 

the lime-injected fabric filter every 15 minutes during the HCl and D/F 

performance tests;

    (2) Determine and record the 15-minute block average temperatures 

for the 3 test runs; and



[[Page 78]]



    (3) Determine and record the 3-hour block average of the recorded 

temperature measurements for the 3 test runs.

    (o) Flux injection rate. The owner or operator must use these 

procedures to establish an operating parameter value or range for the 

total reactive chlorine flux injection rate.

    (1) Continuously measure and record the weight of gaseous or liquid 

reactive flux injected for each 15 minute period during the HCl and D/F 

tests, determine and record the 15-minute block average weights, and 

calculate and record the total weight of the gaseous or liquid reactive 

flux for the 3 test runs;

    (2) Record the identity, composition, and total weight of each 

addition of solid reactive flux for the 3 test runs;

    (3) Determine the total reactive chlorine flux injection rate by 

adding the recorded measurement of the total weight of chlorine in the 

gaseous or liquid reactive flux injected and the total weight of 

chlorine in the solid reactive flux using Equation 5:

[GRAPHIC] [TIFF OMITTED] TR23MR00.013



Where,



Wt = Total chlorine usage, by weight;

F1 = Fraction of gaseous or liquid flux that is chlorine;

W1 = Weight of reactive flux gas injected;

F2 = Fraction of solid reactive chloride flux that is 

chlorine (e.g., F = 0.75 for magnesium chloride; and

W2 = Weight of solid reactive flux;



    (4) Divide the weight of total chlorine usage (Wt) for 

the 3 test runs by the recorded measurement of the total weight of feed 

for the 3 test runs; and

    (5) If a solid reactive flux other than magnesium chloride is used, 

the owner or operator must derive the appropriate proportion factor 

subject to approval by the applicable permitting authority.

    (p) Lime injection. The owner or operator of an affected source or 

emission unit using a lime-injected fabric filter system must use these 

procedures during the HCl and D/F tests to establish an operating 

parameter value for the feeder setting for each operating cycle or time 

period used in the performance test.

    (1) For continuous lime injection systems, ensure that lime in the 

feed hopper or silo is free-flowing at all times; and

    (2) Record the feeder setting for the 3 test runs. If the feed rate 

setting varies during the runs, determine and record the average feed 

rate from the 3 runs.

    (q) Bag leak detection system. The owner or operator of an affected 

source or emission unit using a bag leak detection system must submit 

the information described in Sec.  63.1515(b)(6) as part of the 

notification of compliance status report to document conformance with 

the specifications and requirements in Sec.  63.1510(f).

    (r) Labeling. The owner or operator of each scrap dryer/delacquering 

kiln/decoating kiln, group 1 furnace, group 2 furnace and in-line fluxer 

must submit the information described in Sec.  63.1515(b)(3) as part of 

the notification of compliance status report to document conformance 

with the operational standard in Sec.  63.1506(b).

    (s) Capture/collection system. The owner or operator of a new or 

existing affected source or emission unit with an add-on control device 

must submit the information described in Sec.  63.1515(b)(2) as part of 

the notification of compliance status report to document conformance 

with the operational standard in Sec.  63.1506(c).



[65 FR 15710, Mar. 23, 2000, as amended at 67 FR 79817, Dec. 30, 2002; 

69 FR 53984, Sept. 3, 2004]