ASTM D7166-2010(2015) 1676 Standard Practice for Total Sulfur Analyzer Based On-line At-line for Sulfur Content of Gaseous Fuels《气体燃料含硫量基于总硫分析仪在线 (On-line At-line) 的标准实施规程》.pdf
《ASTM D7166-2010(2015) 1676 Standard Practice for Total Sulfur Analyzer Based On-line At-line for Sulfur Content of Gaseous Fuels《气体燃料含硫量基于总硫分析仪在线 (On-line At-line) 的标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM D7166-2010(2015) 1676 Standard Practice for Total Sulfur Analyzer Based On-line At-line for Sulfur Content of Gaseous Fuels《气体燃料含硫量基于总硫分析仪在线 (On-line At-line) 的标准实施规程》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D7166 10 (Reapproved 2015)Standard Practice forTotal Sulfur Analyzer Based On-line/At-line for SulfurContent of Gaseous Fuels1This standard is issued under the fixed designation D7166; the number immediately following the designation indicates the year oforiginal adoption or, in the cas
2、e of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice is for the determination of total sulfur fromvolatile sulfur-containing compo
3、unds in high methane orhydrogen content gaseous fuels using on-line/at-line instru-mentation.1.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns, if any, as
4、sociated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1070 Test Methods for Relative Density of Gaseous Fuel
5、sD1072 Test Method for Total Sulfur in Fuel Gases byCombustion and Barium Chloride TitrationD3246 Test Method for Sulfur in Petroleum Gas by Oxida-tive MicrocoulometryD3609 Practice for Calibration Techniques Using Perme-ation TubesD3764 Practice for Validation of the Performance of ProcessStream An
6、alyzer SystemsD4298 Guide for Intercomparing Permeation Tubes to Es-tablish TraceabilityD4468 Test Method for Total Sulfur in Gaseous Fuels byHydrogenolysis and Rateometric ColorimetryD5287 Practice for Automatic Sampling of Gaseous FuelsD5453 Test Method for Determination of Total Sulfur inLight Hy
7、drocarbons, Spark Ignition Engine Fuel, DieselEngine Fuel, and Engine Oil by Ultraviolet FluorescenceD5503 Practice for Natural Gas Sample-Handling and Con-ditioning Systems for Pipeline InstrumentationD5504 Test Method for Determination of Sulfur Compoundsin Natural Gas and Gaseous Fuels by Gas Chr
8、omatogra-phy and ChemiluminescenceD6122 Practice for Validation of the Performance of Multi-variate Online, At-Line, and Laboratory Infrared Spectro-photometer Based Analyzer SystemsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasure
9、ment System PerformanceD6621 Practice for Performance Testing of Process Analyz-ers for Aromatic Hydrocarbon MaterialsD6667 Test Method for Determination of Total VolatileSulfur in Gaseous Hydrocarbons and Liquefied PetroleumGases by Ultraviolet FluorescenceD6920 Test Method for Total Sulfur in Naph
10、thas, Distillates,Reformulated Gasolines, Diesels, Biodiesels, and MotorFuels by Oxidative Combustion and Electrochemical De-tection2.2 ISO Standards3ISO 7504 Gas Analysis-Vocabulary3. Terminology3.1 Definitions:3.1.1 at-line instrumentinstrumentation requiring operatorinteraction that samples gas d
11、irectly from the pipeline.3.1.2 calibration gas mixture, na certified gas mixturewith known composition used for the calibration of a measur-ing instrument or for the validation of a measurement or gasanalytical method.3.1.2.1 DiscussionCalibration Gas Mixtures are the ana-logues of measurement stan
12、dards in physical metrology (ref-erence ISO 7504 paragraph 4.1).3.1.3 continuous fuel monitorinstrument that samples gasdirectly from the pipeline on a continuous or semi-continuousbasis.1This practice is under the jurisdiction of ASTM Committee D03 on GaseousFuels and is the direct responsibility o
13、f Subcommittee D03.12 on On-Line/At-LineAnalysis of Gaseous Fuels.Current edition approved June 1, 2015. Published July 2015 Originally approvedin 2005. Last previous edition approved in 2010 as D716610. DOI: 10.1520/D7166-10R15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, o
14、rcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from International Organization for Standardization (ISO), 1, ch. dela Voie-Creuse, Case postale 56, CH-1211, Geneva 20,
15、Switzerland, http:/www.iso.ch.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.4 direct samplingsampling where there is no directconnection between the medium to be sampled and theanalytical unit.3.1.5 in-line instrumentinstrument
16、with an active elementinstalled in a pipeline, which is used to measure pipelinecontents or conditions.3.1.6 on-line instrumentinstrument that samples gas di-rectly from a pipeline, but is installed externally.3.1.7 reference gas mixture, na certified gas mixture withknown composition used as a refe
17、rence standard from whichother compositional data are derived.3.1.7.1 DiscussionReference Gas Mixtures are the ana-logues of measurement standards of reference standards (ref-erence ISO 7504 paragraph 4.1.1).3.1.8 total reduced sulfur (TRS)concentration summationof all volatile sulfur species with a
18、 2 sulfur oxidation number,excluding sulfur dioxide, sulfones and other inorganic sulfurcompounds.3.1.9 total sulfurconcentration summation of all volatilesulfur species in a sample.3.1.10 volatilemolecular characteristic wherein the sulfurspecie exists in the gas phase at the operating conditions o
19、f theprocess or pipeline.4. Summary of Practice4.1 A representative sample of the gaseous fuel is extractedfrom a process pipe or pipeline and is transferred in a timelymanner through an appropriately designed sampling system tothe inlet of a total sulfur analyzer. The sample is conditionedwith a mi
20、nimum, preferably negligible, impact on the sulfurcontent. A precisely measured volume of sample is eitherinjected, or allowed to flow continuously, either directly intothe analyzer or into a carrier gas, as required by the analyzer.Some total sulfur analyzer systems are configured such thatsample g
21、as flows directly into the analyzer detection system.Excess process or pipeline sample is vented to atmosphere, toflare or to the process stream dependant upon application andregulatory requirements.4.2 Sample containing carrier gas is fed to a furnaceoperating at an elevated temperature where sulfu
22、r compoundsare converted into detectable species. The conversion reactionmay be oxidative or reductive and may require the introductionof additional carrier or other supply gases.4.3 Furnace exit gasses are conditioned as required withrespect to temperature and water content and are introducedinto t
23、he detector where quantification of the total sulfur contentoccurs.4.4 Calibration, maintenance, quality assurance and perfor-mance protocols provide a means to validate the analyzeroperation and the generated results.5. Significance and Use5.1 On-line, at-line, in-line and other near-real time moni
24、-toring systems that measure fuel gas characteristics such as thetotal sulfur content are prevalent in the natural gas and fuel gasindustries. The installation and operation of particular systemsvary on the specific objectives, contractual obligations, processtype, regulatory requirements, and inter
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