scholarly journals Pervaporative desulfurization of gasoline – separation of thiophene/n-heptane mixture / Perwaporacyjne odsiarczanie benzyny – separacja mieszanin tiofen/n-heptan

2015 ◽  
Vol 41 (2) ◽  
pp. 3-11 ◽  
Author(s):  
Katarzyna Rychlewska ◽  
Krystyna Konieczny ◽  
Michał Bodzek
Keyword(s):  
Active Layer ◽  
Catalytic Cracking ◽  
Separation Efficiency ◽  
Fluid Catalytic Cracking ◽  
Feed Flow Rate ◽  
Fcc Gasoline ◽  
Membrane Performance ◽  
Organic Sulphur Compound ◽  
Feed Temperature ◽  
Selection Of

Abstract This paper presents the recent advances in pervaporative reduction of sulfur content in gasoline. Methods of preliminary selection of membrane active layer material are presented. Interactions between gasoline components (typical hydrocarbon and sulfur species) and membranes are showed. Influence of pervaporation process parameters i.e. feed temperature, downstream pressure and feed flow rate on the separation efficiency is discussed. Investigations of the influence of sulfur concentration in fluid catalytic cracking (FCC) gasoline on membrane performance have been conducted. A series of PV tests was carried out to investigate the separation properties of the commercial composite membrane with an active layer made of poly(dimethylsiloxane) and to determine the efficiency of organic sulphur compound (thiophene) removal from model thiophene/n-heptane mixture depending on its concentration.

scholarly journals Industrial application of gasoline aromatization and desulfurization technology in Hohhot refinery

2017 ◽  
Vol 23 (3) ◽  
pp. 391-398
Author(s):  
Zixia Li ◽  
Yin Ran ◽  
Wenqi Zhang ◽  
Wei Sun ◽  
Tinghai Wang
Keyword(s):  
Industrial Application ◽  
Catalytic Cracking ◽  
Sulfur Removal ◽  
Economic Benefits ◽  
Fluid Catalytic Cracking ◽  
Operation Condition ◽  
High Quality ◽  
Great Flexibility ◽  
Research Octane Number ◽  
Fcc Gasoline

Gasoline aromatization and desulfurization (GARDES) technology is extensively used in refineries of Petrochina, aiming to produce high quality ultraclean fluid catalytic cracking (FCC) gasoline. This article introduces the industrial application results on the hydrodesulfurization unit of the Hohhot refinery, which plays an important role in guiding next round gasoline upgrading. The characteristics and the principle of GARDES technology were elaborated by analyzing the distribution of sulfur and hydrocarbon compounds in the feed and product. The analysis results proved that the presence of broad ranged sulfur types in the feed can be removed at different stages. Olefin can be decreased by saturation and conversion into i-paraffins and aromatics. The sulfur content of the blend product can be limited under 10 mg/kg, showing GARDES technology has excellent sulfur removal ability. The olefin reduction can also satisfy the ever-increasing severe requirement about the olefin limitation, while the loss of research octane number (RON) can be minimized to an acceptable level. Furthermore, according to the demand of gasoline upgrading, GARDES technology has great flexibility by adjusting operation condition without any further investment, which brings more economic benefits for refinery.

The Selection of Fluid Catalytic Cracking Catalysts and Additives: The Significance of Attrition Studies

2013 ◽  
Vol 32 (4) ◽  
pp. 470-478 ◽  
Author(s):  
T. Chiranjeevi ◽  
N. Ravichander ◽  
D. T. Gokak ◽  
V. Ravikumar ◽  
N. V. Choudary
Keyword(s):  
Catalytic Cracking ◽  
Fluid Catalytic Cracking ◽  
Selection Of ◽  
Cracking Catalysts
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