نتایج جستجو برای: fluid catalytic cracking fcc

تعداد نتایج: 313025  

2013
Sauro Pierucci Jiří J. Klemeš Ariane C. Barbosa Gabriela C. Lopes Leonardo M. Rosa Milton Mori Waldir P. Martignoni

Most studies neglect the presence of thermal cracking reactions in industrial FCC process. Nevertheless, the present work proposes a new model which modified the 10-lumps kinetic model given by Jacob el al. (1976), through to inclusion a new lump named dry gas represent the results of the thermal reactions. Similarly as in the 10-lumps kinetic model, the proposed 11-lumps kinetic model consider...

2016
S. - Q. Zheng L. - J. He S. Ren H. - X. Yu J. - C. Zhang

A novel utilization method of filter residue from the preparation process of zeolite-based catalysts was investigated. Y zeolite and a fluid catalytic cracking (FCC) catalyst were synthesized from filter residue. Compared to the Y zeolite synthesized by the conventional method, the Y zeolite synthesized from filter residue exhibited better thermal stability. The catalyst possessed wide-pore dis...

2007
Gheorghe Bumbac Alexandra Elena Pleşu Valentin Pleşu

This contribution aims to present a methodology to model and simulate the reactive dividing wall column (RDWC) using commercial software. Feasibility of separation scheme was established with ASPEN DISTILTM. Simulation of flowsheet configuration was performed with ASPEN HYSYSTM, using the two columns model. The reactive zone hosted by the prefractionator was modelled and simulated as backward f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی شیمی 1387

شبیه سازی موثر عملیات کراکینگ کاتالیستی بستر سیال fcc)) جهت تبدیل مازوت به محصولات مفید مثل بنزین نیازمند درک صحیح از بسیاری از فاکتورها مانند سینتیک واکنش، هیدرودینامیک و اثرات خوراک و کاتالیست می باشد. در مدل انتخابی برای واحد کراکینگ کاتالیستی بستر سیال ،راکتور به صورت رایزر با زمان اقامت گاز و جامد در حدود چند ثانیه در در نظر گرفته شده است. به علت فعالیت بالای کاتالیست (باتوجه به اینکه بازس...

2003
J. MICHALOPOULOS

A n arti®cial neural network (ANN) model for determining the steady-state behaviour of an industrial Fluid Catalytic Cracking (FCC) unit is presented in this paper. Industrial data from a Greek petroleum re®nery were used to develop, train and check the model. FCC is one of the most important oil re®nery processes. Due to its complexity the modelling of the FCC poses a great challenge. The prop...

Journal: :Kemija u Industriji 2021

A ZSM-5 molecular sieve composite with a wide pore prepared by the solid phase in-situ synthesis method and fluid catalytic cracking, an FCC catalyst additive same for increasing amount of light olefin yield were investigated. The samples characterized XRD, N2 adsorption/desorption, SEM, NH3-TPD, respectively. results showed that structure was pure MFI-type zeolite material. crystallinity 59.8 ...

Journal: :Chemical communications 2015
F Meirer S Kalirai J Nelson Weker Y Liu J C Andrews B M Weckhuysen

Metal accumulation at the catalyst particle surface plays a role in particle agglutination during fluid catalytic cracking.

Journal: :Chemical Engineering Journal 2022

Insightfully understanding the process of volatiles from plastic depolymerization entering exterior into internal structure catalyst favors to rationalize design in scale-up principles. Herein, catalytic degradation wastes with fluid cracking (FCC) was investigated in-depth. The yield and composition liquid gas products over various FCCs were studied quantitatively. structural evolution on over...

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