Document Detail


Methane Emissions from Process Equipment at Natural Gas Production Sites in the United States: Pneumatic Controllers.
MedLine Citation:
PMID:  25488196     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Emissions from 377 gas actuated (pneumatic) controllers were measured at natural gas production sites and a small number of oil production sites, throughout the United States. A small subset of the devices (19%), with whole gas emission rates in excess of 6 standard cubic feet per hour (scf/h), accounted for 95% of emissions. More than half of the controllers recorded emissions of 0.001 scf/h or less during 15 min of measurement. Pneumatic controllers in level control applications on separators and in compressor applications had higher emission rates than controllers in other types of applications. Regional differences in emissions were observed, with the lowest emissions measured in the Rocky Mountains and the highest emissions in the Gulf Coast. Average methane emissions per controller reported in this work are 17% higher than the average emissions per controller in the 2012 EPA greenhouse gas national emission inventory (2012 GHG NEI, released in 2014); the average of 2.7 controllers per well observed in this work is higher than the 1.0 controllers per well reported in the 2012 GHG NEI.
Authors:
David T Allen; Adam P Pacsi; David W Sullivan; Daniel Zavala-Araiza; Matthew Harrison; Kindal Keen; Matthew P Fraser; A Daniel Hill; Robert F Sawyer; John H Seinfeld
Related Documents :
17474506 - Development and validation of a spectrophotometric method for the determination of macr...
25479356 - One-step multiplex quantitative rt-pcr for the simultaneous detection of viroids and ph...
19013356 - Development of highly sensitive extractive spectrophotometric determination of nickel(i...
24148376 - Improved detection of drugs of abuse using high-performance ion mobility spectrometry w...
17634866 - Ionic liquids as a reaction medium for lipase-catalyzed methanolysis of sunflower oil.
17193296 - Cluster analysis as selection and dereplication tool for the identification of new natu...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-9
Journal Detail:
Title:  Environmental science & technology     Volume:  -     ISSN:  1520-5851     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-9     Completed Date:  -     Revised Date:  2014-12-10    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Impact of Hepatitis E Virus Seropositivity on Chronic Liver Disease in Cancer Patients with Hepatiti...
Next Document:  Neurally adjusted ventilator assist (NAVA) reduces asynchrony during non-invasive ventilation for se...