XRT/XRA 处理硫计量器

石油和原油中的硫的含有量测量(0.02% 到6% S)

NEX XT

理学公司的NEX XT是下一代的处理计量器,高水平测量原油、船用燃油、燃油中的硫的含有量(0.02% 到6% S),包括残渣。

在线硫含有量计量器

这个多功能、小型、稳固的X射线透射/吸收(XRT / XRA)处理计量器专门优化硫的含有量分析,满足炼油厂、管道、混合操作、燃料仓储终端和其他存储设施的需求。NEX XT的应用程序包括配有船用燃料以满足《防污公约》(MARPOL Annex VI )附录第六条硫的限制,通过管道提供不同等级燃料的界面检测,炼油厂原料混合监测,远程原油收集质量监测和存储设施。

X射线透射/吸收(XRT / XRA)方法

X射线透射(XRT)计量长期以来一直是测量在处理重烃类中的硫的含有量时公认的技术测量。无论用于管道切换、原油混合,还是检测或混合海上设施及船用燃料,理学公司的NEX XT XRT处理分析仪非常适合于严格的处理环境,它的压力可达1480 psig,温度可达200°C。X射线透射计量涉及在特定能量(21 keV)的单色X射线光束的衰减,此能量特定于硫。在实践中,处理过程流经流动细胞。流动细胞中的硫(在重烃类中)吸收X射线源和检测器之间的透射X射线。记录的X射线强度与硫的浓度成反比,因此硫的含有量越高透射的X射线最少。
NEX XT
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Features

  • 设计简洁,无需例行维护
  • 压力可达1480 psig,温度可达200°C
  • 频繁更新用户可调数据
  • 降低标准样品要求
  • 无样品条件或恢复系统
  • 无放射性同位素

NEX XT specifications

Sulfur Analysis Range
  • 0.02 - 6%

Process Conditions

  • Stream pressures to 100 bar (1480 psig)
  • Stream temperatures to 200ºC (392ºF)
  • Flow rates up to 200 l/m (53 gal/m)

Ambient Conditions

  • 0 - 43ºC (32 - 110ºF)

Communications

  • Sulfur results: 4 - 20 mA output
  • Density results: 4 - 20 mA output
  • General warning: dry contact
  • General alarm: dry contact
  • PROFINET or MODBUS 485

Required Inputs

  • 4 - 20 mA raw density
    • precision of ±0.0001 or better

Optional Inputs

  • 4 - 20 mA process temperature
    • for density corrected to 15ºC / 59ºF
  • 4 - 20 mA water concentration
    • if water correction is desired
  • 4 - 20 mA flow
    • for loss of flow warning
  • 4 - 20 mA remote calibration selection
Process Connection
  • Two 1 inch 600 # ANSI flanges

Area Classifications

  • Class 1 Div 1
  • Class 1 Div 2
  • ATEX zone 1 (pending)
  • ATEX zone 2

Air Supply

  • Purge
    • 4.1 - 8.3 bar (60 - 120 psig) air pressure
    • 115 - 225 l/m (4 - 8 scfm) rapid exchange
  • Leakage compensation (application specific)
    • 710 - 990 l/m (25 - 35 scfm) dry oil free air
    • 6.9 - 8.3 bar (100 - 120 psig) air pressure

Power Requirements

  • 115/230 Volts 2.8/1.4 Amps 47 - 63 Hz
    • Dedicated supply
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NEX XT

NEX XT applications

Pipelines, Upgrading Facilities and Refineries

This versatile, compact and robust X-Ray Transmission (XRT) process gauge was specifically optimized for the total sulfur analysis needs of refineries, pipelines, blending operations, heavy oil upgrading, bunkering terminals and other storage facilities.

Applications include bunker fuel blending to meet MARPOL Annex VI sulfur restrictions, interface detection of different grade fuels delivered via pipelines, refinery feedstock blending and monitoring, and the quality monitoring of crude at remote collection and storage facilities.

MARPOL Regulations

IMO ship pollution rules are contained in the "International Convention on the Prevention of Pollution from Ships", known as MARPOL 73/78. On 27 September 1997, the MARPOL Convention was amended by the "1997 Protocol," which includes Annex VI titled "Regulations for the Prevention of Air Pollution from Ships". MARPOL Annex VI sets limits on NOx and SOx emissions from ship exhausts and prohibits deliberate emissions of ozone depleting substances. The Rigaku NEX XT is the perfect tool to assay marine bunker fuels for blending to meet emissions regulation compliance.

3rd Generation Technology

The new Rigaku NEX XT system is faster, more sensitive and far more compact than competitive systems and provides continuous, reliable detection of sulfur at pressures up to 1480 psig and 200ºC. Rigaku NEX XT can operate as a stand-alone analyzer or provide real time closed loop control when tied into a blending or plant wide automation system.

Among its other key features are a simplified user interface, reduced standards requirement, automatic density compensation, automatic water compensation, password protection, and standard platform for communicating sulfur, density, and water content to a plant-wide DCS. Due to its unique design and robust construction, sample conditioning and recovery systems are typically not required.

On-line sulfur in heavy oils

On-line, real time X-ray Transmission (XRT) measurment of sulfur (S) in heavy or light oils to satisfy the needs of refineries, pipelines, blending operations, bunkering terminals and other storage facilities. Applications include bunker fuel blending to meet MARPOL Annex VI sulfur restrictions, interface detection of different grade fuels delivered via pipelines, refinery feedstock blending and monitoring, diesel/kerosene blending or production, and the quality monitoring of crude at remote collection and storage facilities.

Background

While in-line sulfur gauging, for blending, switching and QC, has been around for years, older technologies never delivered on their promise because those systems did not produce consistent measurements. For the accurate on-line determination of sulphur, the new Rigaku NEX XT resolves those past issues and is thus the perfect tool for blending operations supplying marine bunker fuels and crude feedstock for refineries. With uniquely engineered hardware and novel proprietary software technologies, the new Rigaku NEX XT system is faster, more sensitive and far more compact than previous generation systems and provides continuous, reliable detection of sulfur from 200 parts-per-million (ppm) to 6.0 wt. %, with analysis times as short as 1 second. The Rigaku NEX XT can operate as a stand-alone analyzer or provide real time closed loop control when tied into a blending or plant wide automation system.

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NEX XT

理学公司的NEX XT是下一代的处理计量器,高水平测量原油、船用燃油、燃油中的硫的含有量(0.02% 到6% S),包括残渣。

在线硫含有量计量器

这个多功能、小型、稳固的X射线透射/吸收(XRT / XRA)处理计量器专门优化硫的含有量分析,满足炼油厂、管道、混合操作、燃料仓储终端和其他存储设施的需求。NEX XT的应用程序包括配有船用燃料以满足《防污公约》(MARPOL Annex VI )附录第六条硫的限制,通过管道提供不同等级燃料的界面检测,炼油厂原料混合监测,远程原油收集质量监测和存储设施。

X射线透射/吸收(XRT / XRA)方法

X射线透射(XRT)计量长期以来一直是测量在处理重烃类中的硫的含有量时公认的技术测量。无论用于管道切换、原油混合,还是检测或混合海上设施及船用燃料,理学公司的NEX XT XRT处理分析仪非常适合于严格的处理环境,它的压力可达1480 psig,温度可达200°C。X射线透射计量涉及在特定能量(21 keV)的单色X射线光束的衰减,此能量特定于硫。在实践中,处理过程流经流动细胞。流动细胞中的硫(在重烃类中)吸收X射线源和检测器之间的透射X射线。记录的X射线强度与硫的浓度成反比,因此硫的含有量越高透射的X射线最少。
NEX XT
Ask for more info

Features

  • 设计简洁,无需例行维护
  • 压力可达1480 psig,温度可达200°C
  • 频繁更新用户可调数据
  • 降低标准样品要求
  • 无样品条件或恢复系统
  • 无放射性同位素

NEX XT

NEX XT 应用程序

管道、设施升级和炼油厂

这个多功能、简洁、稳固的X射线透射/吸收(XRT / XRA)处理计量器专门优化硫的含有量分析,满足炼油厂、管道、混合操作、燃料仓储终端和其他存储设施的需求。NEX XT的应用程序包括配有船用燃料以满足“防污公约”附录第六条硫的限制,通过管道提供不同水平燃料的界面检测,炼油厂原料混合监测,远程原油收集质量监测和存储设施。

海洋污染法规

“International Convention on the Prevention of Pollution from Ships”(船舶污染预防国际公约)中载有IMO船舶污染规则,防污公约73/78。1997年9月27日,通过"1997 Protocol"(1997议定书)对“防污公约”进行了修订,包括附件六,标题为"Regulations for the Prevention of Air Pollution from Ships"(船舶空气污染预防法规)。防污公约附件六对船舶废气的氮氧化物和 SOx 排放进行限制,禁止故意排放消耗臭氧层的物质。理学公司的NEX XT是测定满足排放法规船用燃料的完美工具。

第三代技术

理学公司新型NEX XT系统更快捷、更灵敏,对比竞争对手的形同系统更简洁,同时在压力为1480 psig温度为200ºC的条件下提供连续可靠的硫的检测。理学公司NEX XT可以作为一个独立的分析仪进行操作,还可以在与混合系统或工厂自动化系统结合使用时提供实时封闭循环控制。

其他的重要特点有简单的用户界面,降低的标准要求,自动密度补偿,自动水补偿,密码保护和标准台。用于向整个工厂DCS传达硫、密度和水份含量。由于其独特的设计和稳固的结构,通常不需要样品调节和系统恢复。

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