用氮气测试门站内的减压阀

The document outlines a method to eliminate methane emissions during the testing of pressure relief valves (PRVs) by substituting natural gas with high-pressure nitrogen. A partner report indicates that applying this method to 120 PRVs can reduce methane emissions by 10,000 cubic feet per year, while another case involving 100 valves saved 8,000 cubic feet per year. The primary motivation for using nitrogen is safety, particularly where sour gas is present, with the methane reduction serving as a co-benefit. The practice requires nitrogen cylinders with pressure exceeding the PRV set point and involves minimal additional costs since labor remains constant regardless of the gas used.

• Another reported case involving 100 PRVs resulted in annual methane savings of 8,000 cubic feet.
• The primary objective of using nitrogen over methane for PRV testing is safety, especially in cases where natural gas releases pose safety or environmental hazards, such as the presence of sour gas.
• The economic impact is limited to the additional cost of nitrogen, as labor costs are identical to those of natural gas testing and no equipment investment is required.

APA

Clean Air Task Force (n.d.). 用氮气测试门站内的减压阀. https://cdn.catf.us/wp-content/uploads/2025/12/04052606/CH_test-gate-station-pressure-relief-valves.pdf

Chicago

Clean Air Task Force. 用氮气测试门站内的减压阀. n.d. https://cdn.catf.us/wp-content/uploads/2025/12/04052606/CH_test-gate-station-pressure-relief-valves.pdf.

Wikipedia

{{cite report |author=Clean Air Task Force |title=用氮气测试门站内的减压阀 |url=https://cdn.catf.us/wp-content/uploads/2025/12/04052606/CH_test-gate-station-pressure-relief-valves.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{cleanairtaskforcend, author = {{Clean Air Task Force}}, title = {{用氮气测试门站内的减压阀}}, institution = {Clean Air Task Force}, url = {https://cdn.catf.us/wp-content/uploads/2025/12/04052606/CH_test-gate-station-pressure-relief-valves.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }