نتایج جستجو برای: coke deposition

تعداد نتایج: 95307  

Journal: :The Journal of the Society of Chemical Industry, Japan 1971

Journal: :Chemcatchem 2023

The Cover Feature shows highly selective and coke-resistant atomically dispersed Pd catalysts via ionic liquid (IL) layer deposition for acetylene hydrogenation to ethylene in excess ethylene. In their Research Article, I. Ro co-workers explain that IL on induces a change the electronic structure of species, eventually improving coke resistance stability This study presents novel synthetic appr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

2009
Jianfen Li Bo Xiao Rong Yan Jianjun Liu

The objective of this study was to develop a supported tri-metallic catalyst (nano-Ni-La-Fe/γ-Al2O3) for tar removal in biomass steam gasification, to significantly enhance the quality of the produced gas. For this purpose, the supported tri-metallic catalysts were prepared by a deposition-precipitation (DP) method. Different analytical approaches were used to characterize the synthesized catal...

2012
Li Min Chua Iain Hitchcock Robin S. Fletcher Elizabeth M. Holt Sean P. Rigby

A new method for the determination of the spatial distribution of metal surface area within bimodal micro-/meso-porous solids has been developed. This novel technique involves incorporating a nonane pre-adsorption stage between two successive chemisorption experiments. This method has been used to probe the distribution of platinum amongst the micropores and mesopores of a range of bi-functiona...

Journal: :Journal of The Japan Petroleum Institute 1985

2007
R Barranco JW Patrick C Barriocanal MA Diez

The presence of pyrolytic carbon deposits can cause a number of serious problems in the operation of a coke oven. They can inhibit the flow of gas out of the oven; their removal may cause damage to the refractories and the coke pusher equipment, in particular when the deposition is extensive, and can affect the sealing of the oven so leading to undesirable emissions. Some plants burn off the ca...

Journal: :journal of mining and environment 2016
i. montazeri m. taji

various traditional and industrial coke making techniques were discussed based on their limitations and production capacities, and the criteria such as the quality and size of coke production, amount of coke crumb, amount of investment, amount of operational costs, labor force and mechanization. in this work, the rankings of various traditional and industrial coke making techniques were carried...

2014
Y. Asakuma Y. Komatsu S. Nishi A. Kotani M. Nishimura

Coke strength is the most important characteristic for retaining permeability in the bed of a blast furnace. In the present study, coke was coated with phenolic resin in order to improve the coke strength, and a nanoindentation method was used to estimate the strength of the coated coke after reaction under CO2 atmosphere. The elastic modulus was measured for the microporous coke substrate,. Th...

Journal: :Journal of environmental sciences 2015
Song Ding Yuran Li Tingyu Zhu Yangyang Guo

To decrease the operating cost of flue gas purification technologies based on carbon-based materials, the adsorption and regeneration performance of low-price semi-coke and activated coke were compared for SO2 and NO removal in a simulated flue gas. The functional groups of the two adsorbents before and after regeneration were characterized by a Fourier transform infrared (FTIR) spectrometer, a...

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