多气源环境下进入长输管道气质要求探讨

Discussion on quality requirements of natural gas entering long distance pipeline in multiple gas sources environment

在多气源环境下,进入长输管道的天然气及天然气代用品气质复杂。为保证管道的安全运行和天然气的准确计量,对常规及非常规天然气和天然气代用品的气质情况进行了分析。归纳出多气源环境下,天然气质量和计量对天然气气质情况的要求。对包含总硫、H2S、CO2、CO、H2、O2、固体颗粒物、水含量/水露点在内的多项指标限制条件进行了讨论,并提出进入长输管道的天然气气质指标,为进入长输管道气体气质国家标准的制订做出指导。

Under multiple gas sources environment ,the quality of natural gas and substituted natural gas is quite complex .In order to ensure the safety of long distance pipeline and the natu-ral gas metering accuracy ,the gas quality of conventional ,unconventional natural gas and substi-tuted natural gas is discussed .The gas quality control demanded in multiple gas sources environ-ment is summarized .In order to formulate the national standard of quality requirements for all kinds of gas entering long-distance transmission pipe networks ,the control limits were discussed to find out the limits w hich including the concentration of total sulfur ,hydrogen sulfide ,carbon dioxide ,carbon monoxide ,hydrogen ,oxygen ,particles ,and water content/water dew point . These parameters are fully discussed .