純氧燃燒技術應用於既有重油燃燒爐之操作特性

Operational Characteristics of Oxy-Fuel Combustion Apply to a Retrofitted Heavy Oil Furnace

紀宗成(Chung-Cheng Chi) ； 林大惠(Ta-Hui Lin) ； 侯順雄(Shuhn-Shyurng Hou) ； 歐正章(Jenq-Jang Ou)

《燃燒季刊》 75期 (2011/11) Pp. 2-11

https://doi.org/10.30041/CQ.201111.0001

摘要

本研究主要探討既有重油燃燒爐進行純氧燃燒時的操作特性，另一方面則驗證既有空氣燃燒爐可透過改裝進而執行純氧燃燒操作，故本研究使用300 kWth之工業燃燒實務操作示範爐作為實驗設備，探討提高助燃氣體氧濃度（ΩO2=21％-100％）搭配煙道氣迴流，對於燃燒重油的操作特性影響，包括燃燒爐內的溫度、壓力變化以及污染物排放分析（O2、CO2、CO、NOX、SOX）。研究證實經甫適當的設計改裝，純氧燃燒即可應用在既有的空氣燃燒爐，由空氣燃燒狀態逐漸切換至純氧燃燒的轉換過程，不至於大幅改變既有空氣燃燒的操作方式，亦不會對於火焰穩定性帶來負面的影響。

關鍵字

純氧燃燒 ； 舊廠改建 ； 煙道氣迴流 ； 污染排放

並列摘要

This study examined the operational characteristics as adapting an air-fuel burning furnace for oxy-fuel combustion. In order to confirm that the existing air-fuel furnaces could be retrofitted for oxy-fuel combustion, we chose a 300 kW multi-fuel combustion test furnace as the experimental facility. In the study, the effect of oxygen enrichment (ΩO2=21%-100%) on the operational characteristics of heavy oil combustion incorporated with flue gas recirculation was examined. The investigation included temperature, pressure measurements and flue gas composition analysis (O2, CO2, CO, NOX, SOX). The transition from air-fuel to oxy-fuel combustion did not bring negative impacts to the flame stability or considerable changes of the operational characteristics.

並列關鍵字

Oxyfuel ； retrofit ； flue gas recirculation ； emission