Evaluation of adsorptive desulfurization performance and …
desulfurization capacity obtained was in the order: CS-ACA > PUPW-ACA > PC-ACA > AT-ACA. Under the optimal conditions of 30 C and 30 min contact time, the desulfurization rate of 0.5 g PUPW-ACA can reach about 98%. The HHV of non-condensable gas generated during the experiment was calculated, and the HHV of the pyrolysis oil was …Web
اقرأ أكثرNovel Gemini ionic liquid for oxidative desulfurization of gas oil
The N 1,N 1,N 3,N 3-tetramethyl –N 1,N 3-diphenylpropane-1,3-diaminium dichloride ionic liquid (ILc) is an environmentally friendly catalyst for oxidative–extractive desulfurization of gas oil ...Web
اقرأ أكثرSulfur removal technologies from fuel oil for safe and sustainable
More research progress in the applications of various desulfurization technologies of fuel oil in the last ten years is represented in Fig. 2. The published data were generated from the web of science using the search keyword "desulfurization of fuel oil". Download : Download high-res image (170KB) Download : Download full-size image; Fig. 2.Web
اقرأ أكثرVacuum-assisted and alkali roasting for desulfurization of petroleum
The results showed that vacuum was more favorable for the pyrolysis of organic sulfur in petroleum coke at high temperatures (>1400 °C) compared with argon. Vacuum-assisted alkali roasting desulfurization can reduced the sulfur content of petroleum coke to 0.18%, and the desulfurization rate can reached 98.54% at 1600 °C.Web
اقرأ أكثرSulfur in Petroleum: Petroleum Desulfurization Techniques
Thus, petroleum desulfurization is a challenging task for the refiners under the current environmental regulations. Keeping in view this scenario, worldwide researchers are striving to develop new desulfurization techniques that are cost effective and more efficient than HDS. In this regard, several new techniques for desulfurization of ...Web
اقرأ أكثرRemoval sulfur components from heavy crude oil by natural clay
Desulfurization is a process used for the effective removal of sulfur from the heavy crude oil. In this work, the adsorption desulfurization technique was applied for heavy crude oil Baghdad east field with 4.31% sulfur content and treated with modified Iraqi bentonite (Fe and H-bentonite) to increase effectiveness of sorbent surfaces.Web
اقرأ أكثرThe role of extractive and oxidative desulphurization techniques of
Extractive desulfurization of fuel oil using alkylimidazole and its mixture with dialkylphosphate ionic liquids. Industrial & engineering chemistry research, 46 ...Web
اقرأ أكثرDesulfurization of Petroleum Coke via Alkali Calcination
Alkali desulfurization of petroleum coke is an important technology, can improve the performance of the final products of petroleum coke, while reducing air pollution. This paper studied the conditions for desulfurization of calcined petroleum coke using NaOH solid powders. The experimental results show that, the grain size in the …Web
اقرأ أكثرDesulfurization of high sulfur petroleum coke by molten caustic
Abstract. Desulfurization by molten caustic leaching (MCL) at 400–500 °C has been investigated in order to reduce the sulfur content of petroleum coke. Effective parameters on desulfurization of petroleum coke, other than temperature, include alkali to feed (petroleum coke) mass ratio, time and mesh size in the ranges of 0.5–1.5, 1–3 h ...Web
اقرأ أكثرInsight into the oxidative desulfurization of high-sulfur petroleum
High-sulfur petroleum coke (HSPC), that is a by-product from slag oil in the coking process of refining, shows versatility values in practical applications and, however, concentrates the majority of organic sulfur. Herein, we design and construct a highly effective CTAB@HPA composites to be explored for the catalytic oxidative …Web
اقرأ أكثرMetal–Organic Frameworks Towards Desulfurization of Fuels
To reduce the environmental impact of petroleum energy, the desulfurization of fuels is necessary. Metal– organic frameworks (MOFs), an emerging …Web
اقرأ أكثرUltrasounds assisted one-pot oxidative desulfurization of
One of the common industrial desulfurization approaches in petroleum refineries is hydro-desulfurization (HDS), nevertheless HDS technique is expensive, needs high temperatures and pressures, and ...Web
اقرأ أكثرDetailed vacuum-assisted desulfurization of high-sulfur petroleum …
High sulfur petroleum coke is an important by-product of petroleum industry, but it is hard to directly use due to the serious environmental pollution. The development of desulfurization technology has critical significance for the utilization of petroleum coke as resource, in which the thiophene represents the key difficulty in …Web
اقرأ أكثرBiodesulfurization Processes for the Removal of Sulfur from Diesel Oil
One of the favorable approaches in the desulfurization of diesel oil, and the focus of the studies at present, is oxidative desulfurization . This is due to its high efficiency, high selectivity, cost-effectiveness, operation om moderate conditions, usually at low temperature (less than 100 °C) and atmospheric pressure, and its high ...Web
اقرأ أكثرSulfur removal from petroleum coke during high
The largest different desulfurization extent after 120 min pyrolysis process occurred at 1673 K. The green petcoke with low sulfur content demonstrated a lower desulfurization extent than that with high sulfur content — which was easier to desulfurize. Nevertheless, three petcokes displayed similar desulfurization curves but with different ...Web
اقرأ أكثرVacuum-assisted and alkali roasting for desulfurization of petroleum
The dry mixing method was used to evenly mix petroleum coke and sodium hydroxide in a 1: 1 ratio, and vacuum roasting was carried out at 800 °C. The experimental results are shown in Fig. 2. Fig. 2. Effect of particle size of petroleum coke on sulfur content and desulfurization rate of products.Web
اقرأ أكثرRecent advances in catalytic oxidative desulfurization of fuel oil – …
Desulfurization of fuel oil. Petroleum consists of complex mixtures of hydrocarbons, non-hydrocarbons, and heteroatom-containing molecules. The …Web
اقرأ أكثرMicrobial Desulfurization of a Crude Oil Middle-Distillate Fraction
Desulfurization of undiluted OB oil was performed with 1 ml of OB oil per liter of culture, which provided approximately 20 mg of organic sulfur (final concentration, 20 ppm). To minimize the degradation by ECRD-1 of alkanes present in the OB oil, desulfurization experiments were also performed with OB oil diluted in decane. ...Web
اقرأ أكثرBio-catalytic degradation of dibenzothiophene (DBT) in petroleum
In order to study the desulfurization of diesel oils obtained from an oil refinery, resting cells studies by Pseudomonas aeruginosa were carried out which showed a decrease of about 30% and 70.54% ...Web
اقرأ أكثرNanomaterials | Free Full-Text | Oxidative Desulfurization of Petroleum
Oxidative desulfurization (ODS) is currently enjoying popularity as a highly efficient and conveniently operating alternative or complementary to hydrodesulfurization (HDS) technique for resilient sulfur compounds removal from petroleum distillate fractions used as transportation fuels [1,2].The process is performed at ambient operating …Web
اقرأ أكثرOxidative Desulfurization of Petroleum Distillate Fractions Using
Oxidative desulfurization (ODS) is currently enjoying popularity as a highly efficient and conveniently operating alternative or complementary to hydrodesulfurization …Web
اقرأ أكثرExtraction Methods for Removing Sulfur and Its Compounds from Crude Oil
A topical problem of the modern petroleum industry is the development of new technologies for desulfurization of crude oil and petroleum products and subsequent use of the separated concentrates of sulfur compounds for producing various items (forage, fertilizers, solvents, paints, drugs, fungicides, plastics, car tires, …Web
اقرأ أكثرMETHODS FOR DESULFURIZATION OF CRUDE OIL- A …
ation. Desulfurization proceeds due to crude oil properties mainly high boiling range, high fluidity, high sulfur content and nat ure of sulfur content. Keywords: Desulfurization -crude oil Hydrodesulphurization (HDS) Microbe desulfurization Oxidative desulfurization (ODS) 1. INTRODUCTION Crude oil is a complex mixture consists of hydrocarbons as wWeb
اقرأ أكثرBacterial Biological Factories Intended for the Desulfurization of
Activity up to 100 μM/g dry cell weights is needed to meet the current demand for desulfurization. The present review describes the desulfurization capability of various microorganisms acting on ...Web
اقرأ أكثرDesulfurization of petroleum fractions by oxidation and solvent
Upgrading of Syrian petroleum coke by pre-oxidation. Hassan Al-haj Ibrahim. Engineering, Chemistry. 2011. Solvent extraction offers a simple but generally ineffective approach to the desulphurization of high-sulphur petroleum coke where the organic sulphur compounds present may be selectively dissolved.…. Expand.Web
اقرأ أكثرReview on recent advances in adsorptive desulfurization
Adsorptive desulfurization (ADS) is emerging as a low-cost alternative to ultra-deep hydrodesulfurization. In ADS, sulfur compounds are removed via physicochemical adsorption using a selective adsorbent. This review focuses on the latest development in …Web
اقرأ أكثرHydrodesulfurization | FSC 432: Petroleum Refining
Hydrodesulfurization. Desulfurization of fuels is commonly achieved by catalytic hydrodesulfurization (HDS), in which the organic sulfur species are converted to H 2 S and the corresponding hydrocarbon, as in the …Web
اقرأ أكثرOxidative Desulfurization of Petroleum Distillate Fractions Using
1. Introduction. Oxidative desulfurization (ODS) is currently enjoying popularity as a highly efficient and conveniently operating alternative or complementary to hydrodesulfurization (HDS) technique for resilient sulfur compounds removal from petroleum distillate fractions used as transportation fuels [1,2].The process is performed …Web
اقرأ أكثرModifying the hydrodesulfurization process for efficient production …
Oxidative desulfurization (ODS) is the primary process for sweetening liquefied petroleum gases (LPG) in oil and gas refineries. ODS operates in near ambient temperatures with low energy consumption, however, it generates polluting wastes and the sweetened LPG has unacceptable sulfur content. In contrast, the more costly …Web
اقرأ أكثرProcesses | Free Full-Text | Oxidative Desulfurization of Real …
From the perspective of pollution, economics, and product quality, it is very important to find an efficient way to minimize the sulfur content of petroleum products such as gasoline and diesel. In this work, an effective, inexpensive, and simple oxidative desulfurization system based on hydrogen peroxide activation by three dicarboxylic …Web
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