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AssigneesResearch Institute of Petroleum Processing, Sinopec, China Petroleum & Chemical Corporation
InventorsZhanzhu Zhang, Junyi Mao, Shuandi Hou, Ya Qin, Qing Yuan, Kejia Xu, Tongwang Zhang, Shaobing Wang, Hongliang Qu, Xiaojin Tang, Zhenxing Zhu, Tao Huang
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A method for improving yield of petroleum hydrocarbon distillate in a distillation tower (6) comprises: preheating raw oil of petroleum hydrocarbon ready for fractionation; feeding it to a vaporization section (11) through a pressure feed system (3) under a pressure 100-1000 kPa higher than the vaporization section (11) of the distillation tower (6) for simultaneous atomizing and vaporizing; then feeding it to a fractionation section (13) for distillation-separation; and finally, discharging distillate product from the top and/or side of the tower and unvaporized heavy oil from the bottom. A distillation tower (6) for improving yield of petroleum hydrocarbon distillate comprises a vaporization section (11) and a fractionation section (13), and further comprises a pressure feed system (3) for feeding the raw oil of petroleum hydrocarbon ready for fractionation under a pressure 100-1000 kPa higher than that in the vaporization section (11) of the distillation tower (6).
A method for improving a fraction oil yield from petroleum hydrocarbons in the distillation column, wherein said distillation column comprises a vaporization section and a fractionation stage, wherein said method comprises preheating a feedstock oil of petroleum hydrocarbons to be fractionated, sending it through a pressure-feeding system at a pressure of 100-1000 kPa, preferably 200-800 kPa, more preferably 200-600 kPa, and most preferably 200-400 kPa or 200-300 kPa higher than the vaporization section pressure of the distillation column into the vaporization section of the distillation column, atomizing and vaporizing in the vaporization section, and then distillation-separating in the fractionation stage;
A distillation column for improving a fraction oil yield from petroleum hydrocarbons, wherein said distillation column comprises a vaporization section, wherein said distillation column comprises a pressure-feeding system, through which a feedstock oil of petroleum hydrocarbons to be fractionated is fed at a pressure of 100-1000 kPa, preferably 200-800 kPa, more preferably 200-600 kPa, and most preferably 200-400 kPa or 200-300 kPa higher than the vaporization section pressure of the distillation column.
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