Pyrolysis of an Indonesian oil sand in a thermogravimetric analyser and a fixed-bed reactor

2016 ◽  
Vol 117 ◽  
pp. 191-198 ◽  
Author(s):  
Pengfei Liu ◽  
Mingming Zhu ◽  
Zhezi Zhang ◽  
Dongke Zhang
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Oil Sand

TLC-FID and GC-MS Analysis of Tars Generated by Oil Sand Pyrolysis at Different Temperature

2015 ◽  
Vol 737 ◽  
pp. 128-131 ◽  
Author(s):  
De Min He ◽  
Fan Nie ◽  
Jun Guan ◽  
Hao Quan Hu ◽  
Qiu Min Zhang
Keyword(s):  
Fixed Bed ◽  
Product Yield ◽  
Fixed Bed Reactor ◽  
Oil Sand ◽  
Condensation Reactions ◽  
Ms Analysis ◽  
Higher Temperature

Tars generated by oil sand pyrolysis at different temperature in a fixed bed reactor were studied through TLC-FID and GC-MS. Compared to the raw oil sand extracts, pyrolysis could reduce the asphaltenes of oil which is benefit for storage, transport and further utilization. The temperature of pyrolysis affects not only product yield but also its composition. Analyzed together by TLC-FID and GC-MS, groups of tars at different temperature were identified. It was found higher temperature would strengthen the condensation reactions revealing increasing of cycloalkanes, indenes and PAHs increased with raising temperature. There was also a great amount of benzothiophenes which may generated by the decomposition of oil sand bitumen or aromatization of ring sulfides. That mainly contributed to the high content of resin in the tars.

Pyrolysis behavior of Indonesia oil sand by TG-FTIR and in a fixed bed reactor

2015 ◽  
Vol 114 ◽  
pp. 250-255 ◽  
Author(s):  
Chunxia Jia ◽  
Zhichao Wang ◽  
Hongpeng Liu ◽  
Jingru Bai ◽  
Mingshu Chi ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Oil Sand ◽  
Pyrolysis Behavior

Hot Water Extraction and Fixed Bed Pyrolysis for Bitumen Recovery of an Indonesian Oil Sand

2014 ◽  
Vol 672-674 ◽  
pp. 624-627 ◽  
Author(s):  
De Min He ◽  
Fan Nie ◽  
Jun Guan ◽  
Hao Quan Hu ◽  
Qiu Min Zhang
Keyword(s):  
Flow Rate ◽  
Maximum Yield ◽  
Fixed Bed ◽  
Hot Water ◽  
Water Extraction ◽  
Fixed Bed Reactor ◽  
Oil Sand ◽  
Hot Water Extraction ◽  
Time Flow ◽  
Bitumen Recovery

An Indonesian oil sand were studied by hot water extraction and fixed bed pyrolysis for bitumen recovery. It was found that the concentration of alkali and temperature both had effects on the yield of water extraction. But the maximum yield was only 12.74wt% under the investigated condition due to its oil-wet structure. As to pyrolysis in fixed bed reactor, the influence of holding time, flow rate of gas carrier and temperature on the tar yield were considered. The maximum tar yield was 17.01wt% under 140mL/min of gas carrier, 480°C, 0.1MPa and holding for 40min. The results show that pyrolysis is more suitable for bitumen recovery of the oil sand compared with hot water extraction.

Pyrolysis Behaviors of Tumuji Oil Sand by Thermogravimetry (TG) and in a Fixed Bed Reactor

2007 ◽  
Vol 21 (4) ◽  
pp. 2245-2249 ◽  
Author(s):  
Meng ◽  
Haoquan Hu ◽  
Qiumin Zhang ◽  
Xian Li ◽  
Bo Wu
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Oil Sand

Role of filter media in an anaerobic fixed-bed reactor

1995 ◽  
Vol 31 (9) ◽  
pp. 137-144 ◽  
Author(s):  
T. Miyahara ◽  
M. Takano ◽  
T. Noike
Keyword(s):  
Anaerobic Bacteria ◽  
Fixed Bed ◽  
Methanogenic Bacteria ◽  
The Other ◽  
Fixed Bed Reactor ◽  
Filter Media ◽  
Fixed Bed Reactors ◽  
Attached Bacteria ◽  
The Relationship

The relationship between the filter media and the behaviour of anaerobic bacteria was studied using anaerobic fixed-bed reactors. At an HRT of 48 hours, the number of suspended acidogenic bacteria was higher than those attached to the filter media. On the other hand, the number of attached methanogenic bacteria was more than ten times as higher than that of suspended ones. The numbers of suspended and deposited acidogenic and methanogenic bacteria in the reactor operated at an HRT of 3 hours were almost the same as those in the reactor operated at an HRT of 48 hours. Accumulation of attached bacteria was promoted by decreasing the HRT of the reactor. The number of acidogenic bacteria in the reactor packed sparsely with the filter media was higher than that in the closely packed reactor. The number of methanogenic bacteria in the sparsely packed reactor was lower than that in the closely packed reactor.

Modeling of aerated upflow fixed bed reactors for nitrification

1999 ◽  
Vol 39 (4) ◽  
pp. 85-92 ◽  
Author(s):  
J. Behrendt
Keyword(s):  
Mathematical Model ◽  
Mass Transfer ◽  
Liquid Phase ◽  
Gas Phase ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Bulk Liquid ◽  
Initial Value ◽  
Fixed Bed Reactors ◽  
Number Of Cells

A mathematical model for nitrification in an aerated fixed bed reactor has been developed. This model is based on material balances in the bulk liquid, gas phase and in the biofilm area. The fixed bed is divided into a number of cells according to the reduced remixing behaviour. A fixed bed cell consists of 4 compartments: the support, the gas phase, the bulk liquid phase and the stagnant volume containing the biofilm. In the stagnant volume the biological transmutation of the ammonia is located. The transport phenomena are modelled with mass transfer formulations so that the balances could be formulated as an initial value problem. The results of the simulation and experiments are compared.

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