In‐Situ Upgrading of Coal Pyrolysis Tar with Steam Catalytic Cracking over Ni/Al 2 O 3 Catalysts

2020 ◽  
Vol 5 (16) ◽  
pp. 4905-4912 ◽  
Author(s):  
Siqian Cao ◽  
Dechao Wang ◽  
Mingyi Wang ◽  
Jialong Zhu ◽  
Lijun Jin ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Coal Pyrolysis ◽  
Pyrolysis Tar

In-situ catalytic upgrading of coal pyrolysis tar coupled with CO2 reforming of methane over Ni-based catalysts

2018 ◽  
Vol 177 ◽  
pp. 119-128 ◽  
Author(s):  
Mingyi Wang ◽  
Lijun Jin ◽  
Yang Li ◽  
Jiannan Lv ◽  
Baoyong Wei ◽  
...  
Keyword(s):  
Coal Pyrolysis ◽  
Co2 Reforming ◽  
Catalytic Upgrading ◽  
Co2 Reforming Of Methane ◽  
Pyrolysis Tar

In Situ Catalytic Upgrading of Coal Pyrolysis Tar over Carbon-Based Catalysts Coupled with CO2 Reforming of Methane

2017 ◽  
Vol 31 (9) ◽  
pp. 9356-9362 ◽  
Author(s):  
Mingyi Wang ◽  
Lijun Jin ◽  
Yang Li ◽  
Jiaofei Wang ◽  
Xiaoyu Yang ◽  
...  
Keyword(s):  
Coal Pyrolysis ◽  
Co2 Reforming ◽  
Catalytic Upgrading ◽  
Co2 Reforming Of Methane ◽  
Pyrolysis Tar ◽  
Carbon Based

Catalytic Upgrading of in Situ Coal Pyrolysis Tar over Ni-Char Catalyst with Different Additives

2014 ◽  
Vol 28 (8) ◽  
pp. 4934-4941 ◽  
Author(s):  
Jiangze Han ◽  
Xiaoxing Liu ◽  
Junrong Yue ◽  
Bingfeng Xi ◽  
Shiqiu Gao ◽  
...  
Keyword(s):  
Coal Pyrolysis ◽  
Catalytic Upgrading ◽  
Pyrolysis Tar

In-situ catalytic upgrading of coal pyrolysis tar over activated carbon supported nickel in CO2 reforming of methane

Fuel ◽  
2019 ◽  
Vol 250 ◽  
pp. 203-210 ◽  
Author(s):  
Mingyi Wang ◽  
Lijun Jin ◽  
Haibin Zhao ◽  
Xiaoyu Yang ◽  
Yang Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Coal Pyrolysis ◽  
Co2 Reforming ◽  
Catalytic Upgrading ◽  
Co2 Reforming Of Methane ◽  
Pyrolysis Tar

In-situ catalytic upgrading of coal pyrolysis tar on carbon-based catalyst in a fixed-bed reactor

2016 ◽  
Vol 147 ◽  
pp. 41-46 ◽  
Author(s):  
Lijun Jin ◽  
Xiaoyu Bai ◽  
Yang Li ◽  
Chan Dong ◽  
Haoquan Hu ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Coal Pyrolysis ◽  
Catalytic Upgrading ◽  
Pyrolysis Tar ◽  
Carbon Based

scholarly journals The Investigation of Reducing PAHs Emission from Coal Pyrolysis by Gaseous Catalytic Cracking

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Yulong Wang ◽  
Ruifang Zhao ◽  
Chun Zhang ◽  
Guanlong Li ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Particle Size ◽  
Catalytic Cracking ◽  
Catalytic Effect ◽  
Catalyst Particle ◽  
Particle Sizes ◽  
Coal Pyrolysis ◽  
Gaseous Products ◽  
Cracking Process

The catalytic cracking method of PAHs for the pyrolysis gaseous products is proposed to control their pollution to the environment. In this study, the Py-GC-MS is used to investigate in situ the catalytic effect of CaO and Fe2O3on the 16 PAHs from Pingshuo coal pyrolysis under different catalytic temperatures and catalyst particle sizes. The results demonstrate that Fe2O3is effective than that of CaO for catalytic cracking of 16 PAHs and that their catalytic temperature corresponding to the maximum PAHs cracking rates is different. The PAHs cracking rate is up to 60.59% for Fe2O3at 600°C and is 52.88% at 700°C for CaO. The catalytic temperature and particle size of the catalysts have a significant effect on PAHs cracking rate and CaO will lose the capability of decreasing 16 PAHs when the temperature is higher than 900°C. The possible cracking process of 16 PAHs is deduced by elaborately analyzing the cracking effect of the two catalysts on 16 different species of PAHs.

scholarly journals In Situ Catalytic Pyrolysis of Low-Rank Coal for the Conversion of Heavy Oils into Light Oils

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Muhammad Nadeem Amin ◽  
Yi Li ◽  
Xingmei Lu
Keyword(s):  
Energy Cost ◽  
Research Work ◽  
High Energy ◽  
Low Rank ◽  
Heavy Oils ◽  
Coal Pyrolysis ◽  
Low Rank Coal ◽  
Pyrolysis Tar ◽  
Liquid Yield

Lighter tars are largely useful in chemical industries but their quantity is quite little. Catalytic cracking is applied to improve the yield of light tars during pyrolysis. Consequently, in situ upgrading technique through a MoS2 catalyst has been explored in this research work. MoS2 catalyst is useful for the conversion of high energy cost into low energy cost. The variations in coal pyrolysis tar without and with catalyst were determined. Meanwhile, the obtained tar was analyzed using simulated distillation gas chromatograph and Elemental Analyzer. Consequently, the catalyst reduced the pitch contents and increased the fraction of light tar from 50 to 60 wt.% in coal pyrolysis tar. MoS2 catalyst increased the liquid yield from 18 to 33 (wt.%, db) and decreased gas yield from 27 to 12 (wt.%, db) compared to coal without catalyst. Moreover, it increased H content and hydrogen-to-carbon ratio by 7.9 and 3.3%, respectively, and reduced the contents of nitrogen, sulphur, and oxygen elements by 8.1%, 15.2%, and 23.9%, respectively, in their produced tars compared to coal without catalyst.

Evidence for different temperature stages in coal pyrolysis from in situ e.s.r. spectroscopy

Fuel ◽  
1986 ◽  
Vol 65 (9) ◽  
pp. 1315-1316 ◽  
Author(s):  
M SEEHRA ◽  
B GHOSH ◽  
S MULLINS
Keyword(s):  
Coal Pyrolysis
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