Because of its high density and low cetane number, the light cycle oil(LCO) containing heavy aromatics(60%—80%) can hardly be transformed through the conventional hydro-upgrading technology. In this report, a novel L...Because of its high density and low cetane number, the light cycle oil(LCO) containing heavy aromatics(60%—80%) can hardly be transformed through the conventional hydro-upgrading technology. In this report, a novel LCO hydrocracking technology(FD2G) was proposed for the utilization of LCO to manufacture high value-added products. Through the ingenious combination of hydroprocessing catalyst and the hydrocracking process, the high octane gasoline and the ultra-low sulfur diesel(ULSD) blendstocks were produced simultaneously. The influence of catalyst type, reaction temperature, pressure, respectively, on the research octane number(RON) of produced gasoline was studied in a fixed bed hydrogenation reactor. It indicated that high reaction temperature and medium pressure would favor the production of highoctane gasoline through the conversion of bi-aromatic and tri-aromatic hydrocarbons. The typical results of FD2 G technology on commercial units showed that it could produce clean diesel with a sulfur content of less than 10 μg/g and clean gasoline with a research octane number(RON) of up to 92. It would be contributed to the achievement of the maximum profit of a refinery, the FD2 G technology could provide a higher economic efficiency than the other diesel quality upgrading technology under the current gasoline and diesel price system.展开更多
Q1： The reputation of economics rises and falls with the business cycle. In the late 19th century, when capitalism faced what was then called the Great Depression, the world held economists in very low regard. Genera...Q1： The reputation of economics rises and falls with the business cycle. In the late 19th century, when capitalism faced what was then called the Great Depression, the world held economists in very low regard. Generally speaking, what do you think about of ＂the Economics of Crisis＂ and ＂the Crisis of Economics＂ concerned in view of Marxist economics？展开更多
contraction n.经济萎缩
A period of general economic decline.Contractions are often part of a business cycle,coming after an expansionary phase and before a recession.经济总体下滑的阶段。经济萎缩中商业循环的一部分,在...contraction n.经济萎缩
A period of general economic decline.Contractions are often part of a business cycle,coming after an expansionary phase and before a recession.经济总体下滑的阶段。经济萎缩中商业循环的一部分,在经济膨胀之后而在衰退之前。展开更多
文摘Because of its high density and low cetane number, the light cycle oil(LCO) containing heavy aromatics(60%—80%) can hardly be transformed through the conventional hydro-upgrading technology. In this report, a novel LCO hydrocracking technology(FD2G) was proposed for the utilization of LCO to manufacture high value-added products. Through the ingenious combination of hydroprocessing catalyst and the hydrocracking process, the high octane gasoline and the ultra-low sulfur diesel(ULSD) blendstocks were produced simultaneously. The influence of catalyst type, reaction temperature, pressure, respectively, on the research octane number(RON) of produced gasoline was studied in a fixed bed hydrogenation reactor. It indicated that high reaction temperature and medium pressure would favor the production of highoctane gasoline through the conversion of bi-aromatic and tri-aromatic hydrocarbons. The typical results of FD2 G technology on commercial units showed that it could produce clean diesel with a sulfur content of less than 10 μg/g and clean gasoline with a research octane number(RON) of up to 92. It would be contributed to the achievement of the maximum profit of a refinery, the FD2 G technology could provide a higher economic efficiency than the other diesel quality upgrading technology under the current gasoline and diesel price system.
文摘Q1： The reputation of economics rises and falls with the business cycle. In the late 19th century, when capitalism faced what was then called the Great Depression, the world held economists in very low regard. Generally speaking, what do you think about of ＂the Economics of Crisis＂ and ＂the Crisis of Economics＂ concerned in view of Marxist economics？
文摘contraction n.经济萎缩
A period of general economic decline.Contractions are often part of a business cycle,coming after an expansionary phase and before a recession.经济总体下滑的阶段。经济萎缩中商业循环的一部分,在经济膨胀之后而在衰退之前。
