One of the major challenges is that most flares which do not have a dedicated volumetric meter are not set up for gas sample collection. As a result, an appropriate location must be determined, and a sample probe installed to ensure the collection of a representative sample from the flare gas stream. If multiple pipelines feed a single flare, there may not be a location where a representative sample of the commingled gas can be collected, necessitating individual sample locations for each stream. Each flare will therefore need to be assessed by knowledgeable personnel, prior to the arrival of the sampling team, to determine the sample location(s) and perform the necessary fabrication to install the sample probe(s).<\/p>\n\n\n\n
In accordance with the new rule, the minimum time for collection of each sample must be at least one hour. This requires short period, flow weighted, composite samples to ensure it is representative of the gas which flowed through the flare line during that one-hour period. The sampling system must be maintained above the hydrocarbon dewpoint of the flowing gas at all times during sample collection in order to avoid sample distortion. Sample containers must be handled in a manner that ensures sample integrity. Once back at the laboratory, samples are required to be analyzed and heating values calculated in accordance with ASTM D1945\u201314, Standard Test Method for Analysis of Natural Gas by Gas Chromatography.<\/p>\n\n\n\n
The sampling and analytical associated with the new EPA 0000 flare heating value determination requirements are complex. SPL is uniquely positioned to provide the complete solution for ensuring compliance. We have over 250 field technicians and 15 hydrocarbon laboratories providing services to every major US area of operations. We are the recognized technical leaders in sample collection and hydrocarbon analysis. Our team of experts will walk your site, determine the appropriate location(s) for collecting a representative sample(s), fabricate the necessary connections, and install the sample probes. We will collect the required number of samples in accordance with rule and industry standards, ensure they remain undistorted from sample collection to analysis, and analyze them in accordance with ASTM D-1945-14, providing our customers with accurate and defensible heating values and, most importantly, peace of mind.<\/p>\n\n\n\n
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