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Experimental Study on a Hot‐Oxygen Burner in a Bench‐Scale Gasifier
Author(s) -
Guo Qinghua,
Gong Yan,
Yu Guangsuo,
Wang Tao,
Ma Yi,
Yan Zhuoyong
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300449
Subject(s) - wood gas generator , combustor , coal water , slurry , ignition system , diesel fuel , waste management , coal , coal slurry , environmental science , pulverized coal fired boiler , combustion , process engineering , nuclear engineering , petroleum engineering , engineering , chemistry , environmental engineering , aerospace engineering , organic chemistry
The direct‐ignition technology of an entrained‐flow coal‐water slurry gasifier with hot‐oxygen burner (HOB) is presented. Experimental tests were carried out using diesel oil and coal‐water slurry in a bench‐scale entrained‐flow opposed multi‐burner (OMB) gasifier. Using a CCD camera equipped with high‐temperature endoscope, flame images inside the gasifier were recorded and subsequently processed. The results show that the HOB diesel flame is more stable than the normal two‐channel burner flame typically used. Entrained‐flow coal‐water slurry gasifiers can start up using the HOB directly without a higher preheated wall temperature. An HOB can potentially save gasifier preheating time and operation costs and enables a wide range of future applications.