پژوهشهای کاربردی در شیمی

محورهای موضوعی :

تاریخ دریافت : 1403/11/22 تاریخ پذیرش : 1403/11/22 تاریخ انتشار : 1403/11/22

کلید واژه: ت. اين مقاله, پيشرفتهاي اخير در سنتز مكس,

چکیده مقاله :

. اين نتيجهها پژوهشگران را قادر ميسازد تا استفاده از مكسن را در ابرخازنها متمركز كنند. پژوهشهاي گسترده انجامشده تا به امروز، نشان داده شده كه مكسن

 

Ti3C2ماهيت شبهخازني دارد. هو 2و همكارانش ] [36سازوكار

 

پايهاي را در Ti3C2Txبا الكتروليتهاي اسيدي گزارش كرد. با كمك طيفسنجي رامان درجا، فرايندهاي باردار/بيبارشدن در الكترودهاي Ti3C2Txدر الكتروليتهاي حاوي يون سولفات متفاوت ) (NH4)2SO4 ،H2SO4و MgSO4مطالعه و مشاهده

 

1. Lukatskaya 2. Hu

 

شد كه هيدرونيم موجود در H2SO4با اتمهاي اكسيژن موجود در سطح ،Ti3C2Txهنگام باردار/بيبارشدن شبهخازن، در الكتروليت اسيدي پيوند برقرار ميكند. اين روند در مورد

 

(NH4)2SO4و MgSO4 EDLCنيز مشاهده شده است.

 

Ti3C2Txبارگذاريشده بر پارچه كربن مشتق از ابريشم به- عنوان يك ماده الكترود براي ساخت ابرخازنهاي انعطافپذير استفاده شده است. ظرفيت منطقهاي 362 mFcm-2با انعطافپذيري عالي، پايداري چرخهاي را نشان داد ].[37 ابرخازنهاي مبتني بر مكسن همگي نشان دادهاند كه بهدليل

 

قويبودن پيوند M-Xو ظرفيت ويژه برتر، پايداري چرخهاي

 

عالي دارند. دالاجنيس 3و همكارانش ] [37اثر سطوح اصلاح-

 

شده شيميايي مكسن Ti3C2Txبا DMSOرا گزارش كرد. پايانههاي اكسيژن بر سطوح، به بهبود ظرفيت ويژه اين مواد

چکیده انگلیسی:

reforming catalysts in petroleum refineries and petrochemical complexes decline their activities due to coke formation on the pores of the catalysts with time on stream. Finally, after several cycles of regeneration and operation, the catalyst has to be replaced. In this research, an irreversible reaction of increasing the octane number of the reforming reactor product was modeled. Also, the rate of deactivation was considered as a power law function. The rate constants of both main reaction and deactivation were assumed to be Arrhenius functions of temperature. The data of the test runs of Isfahan refinery for four cycles were collected. After estimating the parameters of the model, comparing the analysis of variance table, and also comparing the octane number of the test runs against the octane number predicted by the model, the accuracy of the modeling results and their matching with the test run data were proved. The average absolute deviation of octane numbers for all 62 test runs was equal to 0.856. Different scenarios to determine the final operating life of the reforming catalyst were obtained using modeling results. Therefore, by considering the minimum acceptable research octane number at EOR temperature to be equal to 89, this catalyst can work for 8134 days, which is almost equal to 22.3 years. If the minimum acceptable research octane number was to be 88, the life of the catalyst would increase to around 30 years. In addition, the family curves of activity and research octane number at

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