À¶¾¨ÌåÓýÖ±²¥

Acetylene Converter Process Optimization in Ethylene Plant

Introduction

Ethylene (C2H4) is the largest feedstock for the petrochemical industry and produced by steam cracking or thermal decomposition of naphtha or ethane (C2H6).
C2H4 is the starting chemical for many other products and must meet polymer grade (≧99.95%) specifications for polyethylene plastic manufacturing. Ensuring high purity and productivity of C2H4 is essential for efficient operations in ethylene plants.

Figure 1: Ethylene Process Flow

Acetylene (C2H2) is a by-product produced during hydrocarbon cracking in ethylene plant furnaces and treated as impurity in C2H4 production. To manage this, C2H2 is generally converted to C2H4 by adding hydrogen (H2) in acetylene converter, with carbon monoxide (CO) added to improve C2H4 productivity. However, fluctuations in CO concentration could cause process temperature runaways, and high CO levels can shorten the acetylene converter catalyst's lifetime.

Do you have any concerns?

  • Requirement for improving C2H4 productivity.
  • Requirement for process safety assurance.
  • Requirement for extending lifetime of acetylene converter catalyst.
  • Requirement for producing high purity C2H4 that does not contain impurities.

Solution from À¶¾¨ÌåÓýÖ±²¥

À¶¾¨ÌåÓýÖ±²¥ provides solutions by continuously measuring C2H2 and CO at the acetylene converter with quick response times.

  • By measuring C2H2 and CO at acetylene converter inlet continuously with quick response time, it contributes to improvement of C2H4 production efficiency, process safety and prevention of converter catalyst deterioration.
    *With wide-range measurement capabilities for C2H2, process upsets can be detected immediately.
  • By measuring C2H2 concentration at acetylene converter outlet with extremely high accuracy, it contributes to precise C2H4 purity management.
  • Multi-point sampling allows measurement of multiple points with one analyzer.
  • PLGA-1000 is a product that allows measurement optimization according to the customer’s sample gas condition.

Product Introduction

Process Laser Gas Analyzer
PLGA-1000

  • Process optimization with extremely accurate, quick response, continuous gas measurement using IRLAMTM*1 technology

Provides continuous measurement of low concentration impurity gas in high concentration hydrocarbons accurately with quick response time with our proprietary IRLAM technology.

  • Operational cost reduction

Compared to gas chromatography*2, frequent parts replacement is not required.
Furthermore, the use of a laser as the light source reduces the need for frequent calibration.

*¹ IRLAM is a registered trademark or trademark of À¶¾¨ÌåÓýÖ±²¥ Ltd. in Japan and other countries.
*2 This is based on our own evaluation.

IRLAM

Related Brochures

Related Product

PLGA-1000
PLGA-1000

Process Laser Gas Analyzer

Solicitud de Información

Tiene alguna pregunta o solicitud? Utilice este formulario para ponerse en contacto con nuestros especialistas.

* Estos campos son obligatorios.

Corporate