Ash deposition of Zhundong coal in a 350 MW pulverized coal furnace: Influence of sulfation

Fuel ◽  
2020 ◽  
Vol 260 ◽  
pp. 116317 ◽  
Author(s):  
Hang Shi ◽  
Yuxin Wu ◽  
Man Zhang ◽  
Yang Zhang ◽  
Junfu Lyu
Keyword(s):  
Pulverized Coal ◽  
Ash Deposition ◽  
Zhundong Coal

Ash deposition during pressurized oxy-fuel combustion of Zhundong coal in a lab-scale fluidized bed

2020 ◽  
Vol 204 ◽  
pp. 106411 ◽  
Author(s):  
Xinglei Qiu ◽  
Lunbo Duan ◽  
Yuanqiang Duan ◽  
Bin Li ◽  
Duanfeng Lu ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Fuel Combustion ◽  
Ash Deposition ◽  
Zhundong Coal

On Ash Deposition Rates from Air and Oxy-Combustion of Pulverized Coal, Petroleum Coke, and Biomass

2019 ◽  
Vol 33 (7) ◽  
pp. 5849-5858 ◽  
Author(s):  
Yueming Wang ◽  
Xiaolong Li ◽  
Jost O. L. Wendt
Keyword(s):  
Petroleum Coke ◽  
Pulverized Coal ◽  
Ash Deposition ◽  
Deposition Rates

Control of ash deposition in pulverized coal fired boiler

2009 ◽  
Vol 32 (2) ◽  
pp. 2709-2716 ◽  
Author(s):  
Hiroshi Naganuma ◽  
Nobuya Ikeda ◽  
Takayuki Kawai ◽  
Tsuyoshi Takuwa ◽  
Tadashi Ito ◽  
...  
Keyword(s):  
Pulverized Coal ◽  
Ash Deposition

Control of Ash Deposition in Pulverized Coal Combustor

2010 ◽  
Vol 43 (10) ◽  
pp. 872-879 ◽  
Author(s):  
Ichiro Naruse ◽  
Ryo Yoshiie ◽  
Mikio Matsuura ◽  
Yasuaki Ueki ◽  
Hiroshi Naganuma ◽  
...  
Keyword(s):  
Pulverized Coal ◽  
Ash Deposition

scholarly journals Numerical simulation of the effect of different NaCl concent on boiler flame combustion process

2021 ◽  
Vol 2108 (1) ◽  
pp. 012097
Author(s):  
Zhihai Cheng ◽  
Jiahao Wang ◽  
Xinhai Han
Keyword(s):  
Alkali Metal ◽  
Radiation Heat Transfer ◽  
Combustion Process ◽  
Pulverized Coal ◽  
Combustion Model ◽  
Two Phase ◽  
Combustion Region ◽  
Zhundong Coal ◽  
High Alkali ◽  
Factsage Software

Abstract Zhundong coal has been widely concerned because of its high alkali metal content, which brings great danger to the combustion of boiler. Therefore, it is extremely necessary to study the laws and characteristics of alkali metal influencing combustion in the burning process of zhundong coal. A gas-solid two-phase flow combustion model of pulverized coal containing NaCl was established by using Fluent software and FactSage software in a hot experimental combustion furnace. The influence of different NaCl content in pulverized coal on pulverized coal combustion process was discussed. The results show that with the increase of NaCl content in pulverized coal from 0 to 1% and 2%, the flame center temperature in the furnace increases about 80°C and 120°C under the same coal content, so it can be concluded that the increase of NaCl content can promote the combustion process of pulverized coal in the furnace. At the same time, it can be calculated that, with the increase of NaCl content, the flame range of the combustion region inside the furnace increases by 1/3. Because NaCl is decomposed by heat during combustion to help combustion, and the radiation heat transfer increases, the flame radiation range inside the furnace will increase.

Ash deposition behavior of upgraded brown coal in pulverized coal combustion boiler

2011 ◽  
Vol 92 (7) ◽  
pp. 1355-1361 ◽  
Author(s):  
Katsuya Akiyama ◽  
Haeyang Pak ◽  
Yoji Takubo ◽  
Toshiya Tada ◽  
Yasuaki Ueki ◽  
...  
Keyword(s):  
Brown Coal ◽  
Coal Combustion ◽  
Pulverized Coal ◽  
Ash Deposition ◽  
Pulverized Coal Combustion ◽  
Deposition Behavior
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