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To delete an existing Sulfur Recovery Plant, click on the delete icon, which is the last column in the SULFUR RECOVERY UNIT-LEVEL EMISSIONS SUMMARY table.
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Subpart Y collects the following data about your sulfur recovery plant:
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When you are finished, click NEXT.
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Subpart Y collects the following data about your sulfur recovery plant: - Maximum rated throughput of the sulfur recovery plant (metric tons sulfur per stream day)
- Type of sulfur recovery plant:
- Caustic scrubber
- Claus
- Lo-cat
- Sulfuric acid plant
- Other (specify)
unmigrated-wiki-markup - Method used to calculate the CO{~}2~ 2 emissions. Specify either Equation Y-12 or Process Vent Method. \ [Only appears if No is selected for using a CEMS. For Claus Plants (that do not use a CEMS according to Subpart C), Equation Y-12 must be used. For non-Claus plants (that do not use a CEMS according to Subpart C), either Equation Y-12 or the Process Vent Method may be used.\]unmigrated-wiki-markup
- Indicate whether, if you recycle tail gas, the recycled flow rate and carbon content of recycled tail gas is included in the measured volumetric flow and carbon mole fraction data. If you do not recycle tail gas, please select No. \ [This question appears only if Equation Y-12 is selected\]. Click either Yes or No.unmigrated-wiki-markup
- Indicate if a correction for CO{~}2~ 2 emissions in the tail gas is used. \ [This question appears only if Yes is selected for previous question\]. Click either Yes or No. Note that per Section 98.253(f)(5), if tail gas is recycled to the front of the sulfur recovery plant and the recycled flow rate and carbon content is included in the measured data, then the annual CO{~}2~ 2 emissions must be corrected to avoid double counting these emissions.
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When you are finished, click SAVE.
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To add or update emissions information for a sulfur recovery plant that is NOT monitored by CEMS, locate the SULFUR RECOVERY UNITS EMISSIONS SUMMARY table on the Subpart Y Overview page, and click OPEN.
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Depending on the methods selected to calculate CO2 emissions (see previous section titled "Adding “Adding or Updating Sulfur Recovery Plant Information"Information”), you will be presented with screens to collect CO2 emission results and additional data. Each specific screen is discussed below.
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- Annual CO2 emissions from this sulfur recovery plant (metric tons). To calculate this value, download the associated calculation spreadsheet by clicking the link titled "Use “Use Y-12 spreadsheet to calculate." ” Fill in the spreadsheet using the instructions in the spreadsheet. After completing the spreadsheet, copy the value of CO2 calculated by the spreadsheet to this page in the box next to "Annual “Annual CO2 emission from this sulfur recovery plant (metric tons)."”
- If measured, specific consensus-based standard method or describe the procedure specified by the flow meter manufacturer used to measure annual volume of sour gas fed
- If measured, number of hours missing data procedures were used for annual volume of sour gas fed
- If measured, method used to measure the annual average mole fraction of carbon in the sour gas
- If measured, number of hours missing data procedures were used for annual average mole fraction of carbon in the sour gas
- Annual volume of recycled tail gas (report only if this value was not used to calculate the correction factor, in scf)
- If measured, method used to measure the annual volume of recycled tail gas
- If measured, number of hours missing data procedures were used for annual volume of recycled tail gas
- Annual average mole fraction of carbon in the tail gas (report only if this value was not used to calculate the correction factor, in kg-mole C/kg-mole gas)
- If measured, method used to measure the annual average mole fraction of carbon in the tail gas
- If measured, number of hours missing data procedures were used for annual average mole fraction of carbon in the sour gas
- Correction factor used to calculate CO2 emissions
- If unit specific correction factor is used, method used to determine correction factor used to calculate the CO2 emissions
- Used measurement data for the annual volume of recycled tail gas and annual average mole fraction of carbon in the tail gas
- Used measurement data for the annual volume of recycled tail gas and engineering calculations for mole fraction of carbon in the tail gas
- Used measurement data for the mole fraction of carbon in the tail gas and engineering calculations for the annual volume of recycled tail gas
- Used engineering calculations for both the annual volume of recycled tail gas and annual average mole fraction of carbon in the tail gas
- Other (specify)
When you have finished entering emission results, click SAVE.
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Process Vent Method (Equation Y-19) Summary and Result
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- Annual CO2 emissions from this sulfur recovery plant (metric tons). To calculate this value, download the associated calculation spreadsheet by clicking the link titled "Use “Use Y-19 spreadsheet to calculate." ” Fill in the spreadsheet using the instructions in the spreadsheet. After completing the spreadsheet, copy the value of CO2 calculated by the spreadsheet to this page in the box next to "Annual “Annual CO2 emission from this sulfur recovery plant (metric tons)."”
- Annual volumetric flow discharged to the atmosphere (scf)
- Method used to measure or estimate the annual volumetric flow rate:
- Continuous or at least hourly measurements
- Routine (less frequent than hourly but at least weekly) measurements
- Periodic (less frequent than weekly) measurements
- Process knowledge
- Engineering calculation
- Other (specify)
- Number of venting events, if vent is intermittent
- Cumulative venting time (hours)
When you have finished entering emission results, click SAVE.
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#Back to Top
See Also
Screen Errors
Using Cal e-GGRT to Prepare Your Subpart Y Report
Subpart Y Summary Information for this Facility
Subpart Y Delayed Coking Unit Information
Subpart Y Asphalt Blowing Unit Information
Subpart Y Coke Calcining Unit Information
Subpart Y Catalytic Cracking, Fluid Coking, and Catalytic Reforming Unit Information
Subpart Y Flares Unit Information
Subpart Y Process Vents Unit Information
Subpart Y Sulfur Recovery Plant Information
Subpart Y Emissions Information for Process Units Monitored by CEMS
Subpart Validation Report