scholarly journals Gas-Modified Pyrolysis Coke for in Situ Catalytic Cracking of Coal Tar

ACS Omega ◽  
2020 ◽  
Vol 5 (25) ◽  
pp. 14911-14923 ◽  
Author(s):  
Zhang Lei ◽  
Shu Hao ◽  
Zhang Lei ◽  
Jia Yang
Keyword(s):  
Catalytic Cracking ◽  
Coal Tar ◽  
Pyrolysis Coke

scholarly journals Study on In Situ Catalytic Cracking of Coal Tar by Plasma Preparation of the Pyrolysis Coke Catalyst

ACS Omega ◽  
2020 ◽  
Vol 5 (25) ◽  
pp. 14924-14932 ◽  
Author(s):  
Zhang Lei ◽  
Shu Hao ◽  
Jia Yang ◽  
Zhang Lei ◽  
Kuang Wei
Keyword(s):  
Catalytic Cracking ◽  
Coal Tar ◽  
Pyrolysis Coke

Study on solid waste pyrolysis coke catalyst for catalytic cracking of coal tar

2020 ◽  
Vol 45 (38) ◽  
pp. 19280-19290 ◽  
Author(s):  
Zhang Lei ◽  
Shu Hao ◽  
Jia Yang ◽  
Zhang Lei ◽  
Xu Dan
Keyword(s):  
Solid Waste ◽  
Catalytic Cracking ◽  
Coal Tar ◽  
Pyrolysis Coke

Assessment of in situ solvent extraction for remediation of coal tar sites: Column studies

1995 ◽  
Vol 67 (1) ◽  
pp. 4-15 ◽  
Author(s):  
Sujoy B. Roy ◽  
David A. Dzombak ◽  
M. Ashraf Ali
Keyword(s):  
Solvent Extraction ◽  
Coal Tar ◽  
Column Studies

Benzo[a]pyrene in coal tar pitch: chemical conversion in situ by alkylation

Fuel ◽  
1996 ◽  
Vol 75 (13) ◽  
pp. 1543-1548 ◽  
Author(s):  
Janusz Zieliński ◽  
Blandyna Osowiecka ◽  
Barbara Liszyńska ◽  
Wiesława Ciesińska ◽  
Jerzy Polaczek ◽  
...  
Keyword(s):  
Coal Tar ◽  
Chemical Conversion ◽  
Coal Tar Pitch

scholarly journals Fabrication of the Hierarchical HZSM-5 Membrane with Tunable Mesoporosity for Catalytic Cracking of n-Dodecane

Catalysts ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 155 ◽  
Author(s):  
Zhenheng Diao ◽  
Lushi Cheng ◽  
Xu Hou ◽  
Di Rong ◽  
Yanli Lu ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Inductively Coupled Plasma ◽  
Catalytic Performance ◽  
X Ray Diffraction ◽  
Inductively Coupled ◽  
Swelling Agent ◽  
Ft Ir ◽  
Temperature Programmed ◽  
Adsorption Desorption

Hierarchical HZSM-5 membranes were prepared on the inner wall of stainless steel tubes, using amphiphilic organosilane (TPOAC) and mesitylene (TMB) as a meso-porogen and a swelling agent, respectively. The mesoporosity of the HZSM-5 membranes were tailored via formulating the TPOAC/Tetraethylorthosilicate (TPOAC/TEOS) ratio and TMB/TPOAC ratio, in synthesis gel, and the prepared membranes were systematically characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), N2 adsorption–desorption, N2 permeation, inductively coupled plasma (ICP), in situ fourier transform infrared (FT-IR), ammonia temperature-programmed desorption (NH3-TPD), etc. It was found that the increase of the TPOAC/TEOS ratio promoted a specific surface area and diffusivity of the HZSM-5 membranes, as well as decreased acidity; the increase of the TMB/TPOAC ratios led to an enlargement of the mesopore size and diffusivity of the membranes, but with constant acid properties. The catalytic performance of the prepared HZSM-5 membranes was tested using the catalytic cracking of supercritical n-dodecane (500 °C, 4 MPa) as a model reaction. The hierarchical membrane with the TPOAC/TEOS ratio of 0.1 and TMB/TPOAC ratio of 2, exhibited superior catalytic performances with the highest activity of up to 13% improvement and the lowest deactivation rate (nearly a half), compared with the microporous HZSM-5 membrane, due to the benefits of suitable acidity, together with enhanced diffusivity of n-dodecane and cracking products.

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

Catalytic cracking of a coal tar in a fluid bed reactor

1997 ◽  
Vol 93 (2) ◽  
pp. 93-100 ◽  
Author(s):  
Douglas Velegol ◽  
Mridul Gautam ◽  
Abolghasem Shamsi
Keyword(s):  
Catalytic Cracking ◽  
Coal Tar ◽  
Fluid Bed
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