蓝鲸体育直播

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 蓝鲸体育直播

蓝鲸体育直播 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 IRLAM^TM*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.

_{*? IRLAM is a registered trademark or trademark of 蓝鲸体育直播 Ltd. in Japan and other countries.
*² This is based on our own evaluation.}