In order to meet the demand for gasoline quality upgrading, SINOPEC Anqing Branch Com- pany has retrofitted the DCC unit with the MGD technology and equipped the FCC unit with the MIP technology. This article makes an...In order to meet the demand for gasoline quality upgrading, SINOPEC Anqing Branch Com- pany has retrofitted the DCC unit with the MGD technology and equipped the FCC unit with the MIP technology. This article makes an analysis and comparison on commercial application of the MIP and the DCC/MGD processes in terms of technology and economics while focusing on their specific features and methods for maximization of their economic benefits.展开更多
A Fourier Transform Infrared Spectroscopic(FTIR)method involving a Fe2O3 flux was used to learn how China's coal ash melts.The relationship between ash fusion temperature and chemical composition,as well as the ef...A Fourier Transform Infrared Spectroscopic(FTIR)method involving a Fe2O3 flux was used to learn how China's coal ash melts.The relationship between ash fusion temperature and chemical composition,as well as the effects of Fe2O3 flux on the ash fusion temperature were studied.The relationship between ash fusion temperature and chemical composition,mineralogical phases and functional groups was analyzed with the FTIR method.The results show that the ash fusion temperature is related to the location and transmittance of certain absorption peaks,which is of great significance for the study of ash behavior.展开更多
This work first investigated the detection of slags,slag pool liquid level,and slag accumulation height in laboratory scale based on acoustic emission(AE)detection,and further tried the feasibility of this method in a...This work first investigated the detection of slags,slag pool liquid level,and slag accumulation height in laboratory scale based on acoustic emission(AE)detection,and further tried the feasibility of this method in an industrial scale coal gasifier.Results show that the energy and variance of acoustic signals can realize the accurate detection of large slag(criterion:E>1.5 E0,S>1.2 S0),and the average relative error is only 0.28%.The acoustic energy in the frequency range of 20–40 k Hz is defined as the characteristic energy,which can realize the accurate detection of slag accumulation height and slag pool liquid level,and the average relative error is only 3.94%.Furthermore,AE detection also realize accurate detection of large slag in an industrial scale gasifier and the acoustic signals at slag screen can be used to realize the early warning of the slag collapse(5 h earlier).展开更多
文摘In order to meet the demand for gasoline quality upgrading, SINOPEC Anqing Branch Com- pany has retrofitted the DCC unit with the MGD technology and equipped the FCC unit with the MIP technology. This article makes an analysis and comparison on commercial application of the MIP and the DCC/MGD processes in terms of technology and economics while focusing on their specific features and methods for maximization of their economic benefits.
基金Projects 2003001 supported by the Key Project of Huainan City405099 by the Project of Science Research and Development of China Petroleum & Chemical Corporation
文摘A Fourier Transform Infrared Spectroscopic(FTIR)method involving a Fe2O3 flux was used to learn how China's coal ash melts.The relationship between ash fusion temperature and chemical composition,as well as the effects of Fe2O3 flux on the ash fusion temperature were studied.The relationship between ash fusion temperature and chemical composition,mineralogical phases and functional groups was analyzed with the FTIR method.The results show that the ash fusion temperature is related to the location and transmittance of certain absorption peaks,which is of great significance for the study of ash behavior.
基金the support and encouragement of The National Science Fund for Distinguished Young(21525627)the Science Fund for Creative Research Groups of National Natural Science Foundation of China(61621002)。
文摘This work first investigated the detection of slags,slag pool liquid level,and slag accumulation height in laboratory scale based on acoustic emission(AE)detection,and further tried the feasibility of this method in an industrial scale coal gasifier.Results show that the energy and variance of acoustic signals can realize the accurate detection of large slag(criterion:E>1.5 E0,S>1.2 S0),and the average relative error is only 0.28%.The acoustic energy in the frequency range of 20–40 k Hz is defined as the characteristic energy,which can realize the accurate detection of slag accumulation height and slag pool liquid level,and the average relative error is only 3.94%.Furthermore,AE detection also realize accurate detection of large slag in an industrial scale gasifier and the acoustic signals at slag screen can be used to realize the early warning of the slag collapse(5 h earlier).
