2009 ZEECO, INC. 2009 ZEECO, INC.

2009 ZEECO, INC.

Contour System

2009 ZEECO, INC.

Auto steam control이필요한이유

• Lower destruction efficiency, hydrocarbons (VOCs) 대기방출

• 환경적인문제 (파리협약에따른문제대두, 미국에서NHVcz요구)

• 과도한 steam은 flare의 “Capping” 발생하여내부연소로인하여 flare tip의열변형을가져옴.

• Flare tip의 life time이감소함. • 과도한 utility 소모로에너지절감에비효율. • 일일이사람이 flare의연기여부와 steam control valve를항시지켜보고있어야함.

• 대부분의많은공장에서 over aeration (steam or air)을하고있음.

2009 ZEECO, INC.

Flare tip의 capping 현상정상상태의화염

2009 ZEECO, INC.

Control 방법

Flow Meter & STM Control Valve

Flame Monitor & STM Control Valve

2009 ZEECO, INC.

Flow Meter & STM Control Valve

DCS

Flow Meter FlareSTM

Control Valve

High Accuracy

Fast Response Time

Capital Cost

Variable flare gas composition

2009 ZEECO, INC.

Flow Meter (Ultra Sonic Type)

2009 ZEECO, INC.

Flow Meter (Thermal Type)

2009 ZEECO, INC.

Flame Monitor & STM Control Valve

DCS

FlameMonitor

FlareSTM

Control Valve

Easy Maintenance

Low Capital Cost

2009 ZEECO, INC.

Flame Monitors

2009 ZEECO, INC.

Flame monitor 장점

두개의 IR 센서로 carbon과산소의 balance를확인. Carbon/oxygen의비를확인해서건강한화염을만들기위해 steam의양을줄이거나늘이기도함.

Flare flow나 gas의조성, flare event같은사항을필요치않음. 좋은화염이형성되면 DE가 98% 혹은그이상달성할수있음 초기투자비가 flowmeter에비해저렴함. 설치가용이하고정비도 groun에서할수있음. Camera를두대혹은그이상을설치하여 redundancy로사용할수있음.

2009 ZEECO, INC.

Flame monitor 비교 with old version

현재는 dual wave IR camera 인데반해하나의 IR signal로연기형성만 check 함. 구모델은 steam이너무많이들어가도인지를못해서 steam양을줄이는데실패함. 구모델은화염에서연기를확인해야해서넓은시야가필요한데반해신모델은

viewing diameter가작고이는 flare turndown rate에서 steam control을용이하게함. 구모델은대기환경에의한장애 (비, 안개, steam응축수등)에민감한데반해신모델은민감하지않아서 control이보다용이하고또한 water vapour에도장애를받지아니함.

2009 ZEECO, INC.

Flame monitor 설치사진

2009 ZEECO, INC.

Flame monitor

2009 ZEECO, INC.

Flame monitor

2009 ZEECO, INC.

Flame monitor의특징

2009 ZEECO, INC.

Reference List

37638 Kuemho Petrochemical Resin plant Ulsan, Korea Steam Flare

39746 Hanwha Chemical PE plant Yeosu, Korea Steam Flare

2009 ZEECO, INC.

Reference List in Saudi Aramco