| BMP ID: |
4466 |
| Title: |
Convert Gas-Driven Chemical Pumps to Instrument Air. |
| Text: |
Table 1â€"Cost-Effective Options for Reducing Methane Emissions: "Convert Gas-Driven Chemical Pumps to Instrument Air: Circulation pumps in glycol dehydration units and chemical-transfer pumps are often powered by pressurized natural gas. Such pumps vent methane gas to the atmosphere as part of their normal operation. Replacing natural gas with instrument air to drive the glycol circulation and chemical-transfer pumps increases operational efficiency, decreases maintenance costs, and reduces emissions of methane, VOCs and HAPs. This emission reduction opportunity utilizes excess capacity of an existing instrument-air system. The methane emission savings are determined by the glycol circulation rate and the water removal rate. Gas savings in the range of 2.5 to 9 MMcf/yr are possible. This technology has a quick payback. Capital costs are incurred to install piping between the air compressor and the glycol dehydrator pump and are assumed to be incremental to the cost of the air compressor already in use for pneumatic controls. The operating cost is incremental electricity for air compression." (see Table 2 and 3 in the 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: |
3 |
| Supplemental Documents: |
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| Usage Type: |
Recommended |
| Timing: |
• Production / Operation / Maintenance
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| Oil / Gas Field: |
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| Surface Ownership: |
• Federal
• State
• Private
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| 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 =
$1000;
O&M Cost =
$1000;
Saleable Gas Saving (Mcf/d) =
6.8;
Expected Payback =
Less than a year;
Operating Requirement =
Excess capacity in existing instrument
air system;
Basis for cost saving =
Glycol pump on 10 MMcfd dehydrator operating cost is
incremental electricity;
Other Benefits =
Increase in operational efficiency. Reduced maintenance
cost.
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| BMP Efficacy: |
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| Date Entered: |
2009-04-08 08:34 UTC |
| Last Updated: |
2011-07-17 13:48 UTC |
