Desulfurization of light diesel fuel using chloramine t and polymer supported imidation agent

مقدم أطروحة جامعية

Fadil, Zaynab Subhi

مشرف أطروحة جامعية

Salih, Najat Jumah
Ibrahim, Niran Khalil

الجامعة

الجامعة التكنولوجية

الكلية

-

القسم الأكاديمي

قسم الهندسة الكيمياوية

دولة الجامعة

العراق

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2010

الملخص الإنجليزي

Adsorption of sulfur compounds on a polymer-supported imitation agent (Sodium N-chloral-polystyrene sulfonamide, PI) at ambient conditions.

The PI was synthesized from poly (styrene-divinylbenzenne) as a starting material.

Its chemical structure was identified and confirmed using FT-IR infrared spectrophotometer.

The activity of the synthesized PI was investigated at first with respect to the removal of DBT from model light oil (n-tetrad cane containing DBT 11 mmol / ⌡ corresponding to 500 ppm sulfur content).

The analysis of the resulting oil obtained after 8 hr.

of reaction in the presence of PI detected the absence of any sulfur compounds.

Moreover, the analysis of the PI recovered after treatment showed an absorption band at 915 cm-1 owing to the S-N bonding which indicates that the DBT removed from the oil is chemically adsorbed on the PI.

Alight oil : the sulfur concentration of commercial hydrocracked diesel obtained from refinery was decreased from 1900 ppm to about 180 ppm (deep desulfurization level).

The desulfurization process using PI is therefore approved to be both effective and energy efficient refining process for light oils.

The effects of initial sulfur concentration in commercial oil (Co = 1900, 12354) ppm and the sorbent dose (Ws = 0.10, 0.20, 0.25, 0.3, 0.36) mg / ⌡ at time = 40 hr.

on the desulfurization efficiency were studied.

The results indicate that the removal efficiency increased with decreasing sulfur concentration and increasing sorbent dose.

The proposed empirical formula that represents the relationship between the desulfurization efficiency and the operating parameters studied was found to Be : Л % = 163582 (ws) 0.52(co) -0.62 R = 0,998 Also the residual sulfur concentration in the treated oil can be estimated from the following Formula : C = 0.0112 (Co) 1.24 (Ws) -0.90 R=0.99974 The results also indicated that the rate of sulfur removal follows a non-linear kinetics model The rate constant, (for Co = 1900 ppm) was found to be equal to 0.2835 (⌡ /mg.h).

التخصصات الرئيسية

الكيمياء

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لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-305142