Kinetic modeling of catalytic cracking of gas oils using in situ traps (FCCT) to prevent metal contaminant effects

1993 ◽  
Vol 32 (6) ◽  
pp. 1071-1080 ◽  
Author(s):  
Hany Farag ◽  
Siauw Ng ◽  
Hugo de Lasa
Fuel ◽  
2021 ◽  
Vol 303 ◽  
pp. 121226
Author(s):  
Mei Yang ◽  
Linzhou Zhang ◽  
Gang Wang ◽  
Zhengyu Chen ◽  
Jiannian Han ◽  
...  

2019 ◽  
Vol 45 (11) ◽  
pp. 5681-5703 ◽  
Author(s):  
Saeed Abbasizadeh ◽  
Sareh Asadi ◽  
Ramin Karimzadeh

2017 ◽  
Vol 120 ◽  
pp. 121-137 ◽  
Author(s):  
Abdulhafiz Usman ◽  
M. Abdul Bari Siddiqui ◽  
Abdelrahman Hussain ◽  
Abdullah Aitani ◽  
Sulaiman Al-Khattaf

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Aziz Babapoor ◽  
Reza Hajimohammadi ◽  
Seyyed Mohammad Jokar ◽  
Meysam Paar

In this study, a biosensor is designed to remove mercury as a toxic metal contaminant from the soil. The rhamnolipid biosurfactant was used to extract the mercury sorbed to soil to the aqueous phase. An immobilized bioluminescent bacterium (Escherichia coli MC106) with pmerRBPmerlux plasmid is assisted for mercury detection. A significant decrease in luminescence level was observed in a biosensor system containing contaminated soil sample extract. The concentrations of extracting mercury are well correlated with the mercury toxicity data obtained from experimental biosensor systems according to the RBL value. The optimum aeration rate of 20 ml/min was obtained for the biosensor systems. The advantage of such a biosensor is the in situ quantification of mercury as a heavy metal contaminant in soils. Therefore, this system could be proposed as a good biosensor-based alternative for future detection of heavy toxic metals in soils.


1994 ◽  
Vol 33 (12) ◽  
pp. 3053-3062 ◽  
Author(s):  
Arturo Gianetto ◽  
Hany I. Farag ◽  
Alberto P. Blasetti ◽  
Hugo I. de Lasa

Catalysts ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 155 ◽  
Author(s):  
Zhenheng Diao ◽  
Lushi Cheng ◽  
Xu Hou ◽  
Di Rong ◽  
Yanli Lu ◽  
...  

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.


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

2014 ◽  
Author(s):  
Xiaolin Chen ◽  
Zhangxin (John) Chen ◽  
Robert Gordon Moore ◽  
Sudarshan A. Mehta ◽  
Matthew G. Ursenbach ◽  
...  

AIChE Journal ◽  
2010 ◽  
Vol 56 (11) ◽  
pp. 2913-2922 ◽  
Author(s):  
Baoying Wei ◽  
Haiyan Liu ◽  
Tiesen Li ◽  
Liyuan Cao ◽  
Yu Fan ◽  
...  

2020 ◽  
Vol 43 (12) ◽  
pp. 2493-2500
Author(s):  
Xiaojing Zhao ◽  
Shiyuan Sun

Sign in / Sign up

Export Citation Format

Share Document