| BMP ID: |
4954 |
| Title: |
Convert Gas Pneumatic Controls to Mechanical Controls. |
| Text: |
Table 1â€"Cost-Effective Options for Reducing Methane Emissions: "Convert Gas Pneumatic Controls to Mechanical Controls.Remote gas production sites often use natural-gas powered pneumatic controllers for automatic process control, resulting in significant methane emissions. methane emissions can be avoided by converting some pneumatic controls to mechanical devices. The most common mechanical control device is a level controller, which controls the position of a drain valve by mechanical linkages to the position of a liquid-level float. The mechanical device eliminates both the process controller bleed and the valve-actuation vent emissions. Mechanical controls can be used where the process measurement is close to the flow control valve, with a savings of 500 Mcf/yr per controller." [see Table 2 and 3 in source document for costs, benefits and production characteristics] |
| Source Publication Name: |
Cost-effective methane emissions reductions for small and midsize natural gas producers |
| Citation Section: |
Table 1 |
| Citation Page: |
4 |
| Supplemental Documents: |
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| Usage Type: |
Recommended |
| Timing: |
• Production / Operation / Maintenance
|
| Oil / Gas Field: |
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| Surface Ownership: |
• Federal
• State
• Private
|
| Mineral Ownership: |
• Federal
• State
• Private
|
| Primary Contact: |
Environmental Protection Agency
Ariel Rios Building, 1200 Pennsylvania Avenue, N.W.
Washington, DC 20460 United States |
| Phone: | (202) 272-0167 |
|
Alt. Phone: | (202) 272-0165 |
| Fax: | |
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E-mail: | |
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| Alternate Contact: |
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| Categories: |
Air Quality and Emissions
|
| Location: |
General / Federal |
| Species: |
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| Vegetation Types: |
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| General Comments: |
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| Cost-Benefit Analysis: |
Cost & Benefits:
Equipment Cost =
$1,000;
O&M Cost =
$100;
Saleable Gas Saving (Mcf/d) =
1.4;
Expected Payback =
Less than 5 month, with $5/Mcf price assumption;
Operating Requirement =
Mechanical linkages must be lubricated;
Basis for cost saving =
Replace one liquid level control loop
to mechanical dump valve;
Other Benefits =
High controler reliability; |
| BMP Efficacy: |
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| Date Entered: |
2009-04-20 08:40 UTC |
| Last Updated: |
2011-07-17 13:48 UTC |
