نتایج جستجو برای: Delayed Coking

تعداد نتایج: 101794  

2002
Semih Eser Guohua Wang

Introduction FCC decant oil is the primary feedstock to delayed coker to produce needle coke, a premium carbon precursor to synthetic graphite electrodes. Mesophase development during coking, determines the graphitizability of the needle coke product. Mesophase development, in turn, depends on the molecular composition of the feedstocks [1,2]. In a commercial delayed coking unit, liquid-phase c...

2005
Giulia Bozzano Mario Dente

The valorisation of oil distillation residues constitutes a major problem for refineries. Thermal processes like visbreaking and delayed coking are still quite diffused technologies. This paper presents some major aspects of the delayed coking kinetic modelling and some preliminary results compared with experimental data. A mechanistic approach has been adopted; it allows describing the process...

Journal: :The Canadian Journal of Chemical Engineering 2007

In this work, new correlations are proposed to predict the products yield of delayed coking as a function of CCR and temperature based on the experimental results. For this purpose, selected Iranian vacuum residues with Conradson carbon residue (CCR) values between 13.40-22.19 wt.% were heated at a 10 °C/min heating rate and thermally cracked in a temperature range of 400-500 °C in a laboratory...

Journal: :Processes 2023

Technological objects and processes are often characterized by fuzzy initial information necessary for developing their models optimization. The purpose of the study is to develop a method synthesizing linguistic described heuristic solving multicriteria optimization problem in environment. Based on expert assessments logical rules conditional inference, was developed describing with input outp...

Journal: :Physical chemistry chemical physics : PCCP 2015
Xiaxi Li Mingfei Liu Jung-pil Lee Dong Ding Lawrence A Bottomley Soojin Park Meilin Liu

Thermally robust and chemically inert Ag@SiO2 nanoprobes are employed to provide the surface enhanced Raman scattering (SERS) effect for an in situ/operando study of the early stage of carbon deposition on nickel-based solid oxide fuel cell (SOFC) anodes. The enhanced sensitivity to carbon enables the detection of different stages of coking, offering insights into intrinsic coking tolerance of ...

2011
Guanghua Wang kun Chen Wenbing Li Wenmin Liu Tiejun Liu Zhaoyang Wu Zhu Zhang Xiangyong Liu

Coking wastewater from the process of coking, coal gas purification and the coking products refine, whose ingredients are complicated and inconstant, is hard to meet the standard of reclaimed water used for industrial water by secondary treatment. In view of this situation, the advanced treatment technique of coking wastewater was desired. The innovatory flocculation treatment was used to regen...

Journal: :Modern Technologies and Scientific and Technological Progress 2020

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