Effort of ionic liquids with [HSO 4 ] ‐ on oxidative desulphurization of coal

2019 ◽  
Vol 97 (S1) ◽  
pp. 1299-1306 ◽  
Author(s):  
Lanyun Wang ◽  
Zhendong Li ◽  
Guosong Jin ◽  
Ning Zuo ◽  
Yongliang Xu
Author(s):  
Waqas Ahmad

This chapter describes the occurrence of organosulfur compounds in petroleum, their detrimental effects and various techniques for removal of these compounds. The sole commercial desulfurization process i.e. HDS is broadly discussed in terms of reaction conditions, different types of catalysts used, reactor design and mechanistic pathways in the process. The shortcomings of HDS and needs for developing new desulfurization techniques is also described. Various newly developed research techniques for desulfurization are also discussed with their technical backgrounds, commercial overview, advantages and shortcomings in the light of literature reports. These techniques include, Adsorptive desulfurization, Bio-desulfurization, Precipitative desulfurization, and Oxidative desulfurization with its sub types like ODS using H2O2- Polyoxometalates (POM), ODS with Ionic liquids, Photo-oxidative desulphurization and Ultrasound Assisted ODS.


Author(s):  
Abdul Waheed Bhutto ◽  
Rashid Abro ◽  
Tauqeer Abbas ◽  
Guangren Yu ◽  
Xiaochun Chen

Hydrodesulphurization (HDS) is a standard process for removing sulphur compounds in fuel oils in industry. HDS is effective to remove simple aliphatic sulphur compounds while less effective to remove thiophenes, dibenzothiophenes, and their derivatives because of sterically hindered adsorption on catalyst surface. Application of ionic liquids (ILs, a new class of compounds) substituting for traditional volatile organic solvents in extractive desulphurization (EDS) or oxidative desulphurization (ODS), have been being studied intensively in the latest decades, and many very promising results have been obtained, showing a good prospect as complement method to HDS. In this chapter, these fresh research results of EDS and ODS using ILs are summarized along with comprehensive discussions on diversified desulphurization factors along with some potential problems. It can be inferred that ILs are a class of potential ideal solvents to realize clean fuel oil in future although some problems come too.


2011 ◽  
pp. 110923034559006
Author(s):  
Arnd Garsuch ◽  
D. Michael Badine ◽  
Klaus Leitner ◽  
Luiz H. S. Gasparotto ◽  
Natalia Borisenko ◽  
...  

2020 ◽  
Vol 42 (3) ◽  
pp. 218-225
Author(s):  
T.T. Alekseeva ◽  
◽  
N.V. Kozak ◽  
N.V. Yarova ◽  
◽  
...  
Keyword(s):  

2016 ◽  
Vol 13 (1) ◽  
pp. 53
Author(s):  
Siti Nabihah Jamaludin ◽  
Ruzitah Mohd Salleh

Anthropogenic CO2 emissions has led to global climate change and widely contributed to global warming since its concentration has been increasing over time. It has attracted vast attention worldwide. Currently, the different CO2 capture technologies available include absorption, solid adsorption and membrane separation. Chemical absorption technology is regarded as the most mature technology and is commercially used in the industry. However, the key challenge is to find the most efficient solvent in capturing CO2. This paper reviews several types of CO2 capture technologies and the various factors influencing the CO2 absorption process, resulting in the development of a novel solvent for CO2 capture.


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