Description

硫化产品的流量测量

要求

  • 工艺过程控制
  • 腐蚀性的介质

Description

氢气的流量测量

要求

  • 工艺过程控制
  • 低密度气体

Description

加氢处理冲洗水的流量测量

要求

  • 工艺过程控制
  • 含有微量烃类物质的流体

Description

压缩机用密封氮气的流量监测

要求

  • 快速识别泄漏和密封失效,以杜绝压缩机故障
  • 显示流量

Description

油水分离器的液位和界面测量

要求

  • 连续测量,以调节分离器中的液位
  • 不断变化的油水液位

Description

酸性气的流量测量

要求

  • 工艺过程控制
  • 腐蚀性的介质

Description

蒸汽的流量测量

要求

  • 温度可能极高
  • 工艺过程控制

Description

脱硫产品的流量测量

要求

  • 维持质量平衡
  • 工艺过程控制

Description

尾气的流量测量

要求

  • 优化燃烧炉的控制
  • 波动的运行条件

Description

酸性水的流量测量

要求

  • 工艺过程控制
  • 含有微量烃类物质的流体
  • 腐蚀性的介质

Description

监控与核查软件

要求

  • 可视化及监测关键过程
  • 报告、趋势和报警处理的控制
  • 测量数据的统计评估

概览

Hydrotreating in the oil & gas industry

Hydro desulfurisation monitoring

Hydrotreating, often called hydro-desulfurisation, is a refinery process applied to the distillation column sidecuts that that are heavier oil products. The objective is to reduce the sulphur and other components, such as nitrogen and aromatics, by creating a reaction between them and hydrogen, when they are exposed to a catalyst at high temperature. In this way the refinery can meet the requirements for clean fuel specifications, for example for low sulphur/sulfur diesel.

In the steady operational state, the liquid output from the furnace heats the input fluids, which are a mixture of the oils for treatment and hydrogen gas, these then pass into the reactor, over the catalyst. The liquid output is then treated with wash water, and passed to a separator, where some hydrogen is recovered, and sour water is passed for treatment. The oil drawn off is passed through a stripper, where it is mixed with steam. The upper output from the stripper once again goes through a separator, which produces sour water and sour gas: the desulfurized product emerges from the base of the stripper.

KROHNE offers a complete portfolio of hydrotreating process instrumentation, including several different types of flowmeter to control the hydrotreatment. The portfolio varies from specially developed ‘harsh environment’ electromagnetic flowmeters that are used for sour water measurement, up to vortex and ultrasonic flowmeters that are applied to measure the hydrogen gas flows. TDR guided wave radar systems are used to monitor fluid levels, particularly to control the interfaces within the separators.

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