轻烃管输过程中的计量输差控制

Metering transmission difference control on light hydrocarbon pipeline transportation

轻烃作为一种石油产品的衍生产物,由碳和氢两种元素组成,其来源包括两部分:压缩制冷天然气并分离出其中重组分,密度为0.58~0.64 t/m^3;对原油进行加热,并分离出其轻组分,密度为0.62~0.69 t/m^3,两者皆为物理过程。以使用不确定度为0.2的质量流量计为前提,对轻烃管输进行简要介绍并对轻烃计量输差的成因进行分析,从而提出避免或减小输差的措施。

As a derivative product of petroleum products, light hydrocarbon is composed of carbon and hydrogen.Firstly, they are composed of the heavy component separated from compressed natural gas, the density of them is0.58 ~ 0.64 t/m3. Secondly, they are composed of the light component separated from heated crude oil, the density of them is 0.62 ~ 0.69 t/m3. Both of the two methods are physical processes. Based on using the mass flow meter with 0.2 uncertainty, the light hydrocarbon pipeline transportation has been introduced briefly, and the transmission difference causes for light hydrocarbon metering have been analyzed and the solution on avoiding and reducing transmission difference has been put forward in this paper.