发明名称 |
METHOD FOR MAXIMIZING THE REACTION VOLUME IN A SLURRY PHASE REACTOR |
摘要 |
Method for maximizing the reaction volume in a slurry phase reactor by determining the ratio (f) between the height of the foams (Hf) and the height of the reactor (HR) through an algorithm defining the gas hold-up in three zones, a first lower zone in which a bubble regime is established, a second intermediate zone where there can be the presence of foams, a third zone situated in the upper hemispherical part in which the multiphase mixture is accelerated until it reaches outlet conditions, the average gas hold-up being given by the weighted average of each of the three gas hold-ups of the three zones, characterized in that it uses nuclear densimeters positioned inside the reactor at different heights and comprises: measuring, for each nuclear densimeter used, gas density values, relating to different gas and/or slurry velocities, which correspond through said algorithm to calculated gas hold-up values, revealing, with a calculated gas hold-up of less than 40%, the absence of foams at least up to the height at which the densimeter is positioned, whose density measured corresponds to said gas hold-up, with a calculated gas hold-up higher than 70%, the presence of foams starting at least from the height of the reactor in which the densimeter is positioned, whose density measured corresponds to said gas hold-up, finally, determining through said algorithm, the ratio f and the extension in height of the possible presence of foams, calculating the consequent height Hf. |
申请公布号 |
US2016012207(A1) |
申请公布日期 |
2016.01.14 |
申请号 |
US201414758315 |
申请日期 |
2014.01.22 |
申请人 |
ENI S.p. A. |
发明人 |
MALANDRINO Alberto Maria Antonio;PICCOLO Vincenzo |
分类号 |
G06F19/00;G01B21/02;G01B21/00 |
主分类号 |
G06F19/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for maximizing the reaction volume in a slurry phase reactor by determining the ratio (f) between the height of the foams (Hf) and the height of the re actor (HR) through an algorithm defining the gas hold-up in three zones, a first lower zone in which a bubble regime is established, a second intermediate zone where there can be the presence of foams, a third zone situated in the upper hemispherical part in which the multiphase mixture is accelerated until it reaches outlet conditions, the average gas hold-up being given by the weighted average of each of the three gas hold-ups of the three zones,
characterized in that it uses nuclear densimeters positioned inside the reactor at different heights and comprises:
measuring, for each nuclear densimeter used, gas density values, relating to different gas and/or slurry velocities, which correspond through said algorithm to calculated gas hold-up values,revealing, with a calculated gas hold-up of less than 40%, the absence of foams at least up to the height at which the densimeter is positioned, whose density measured corresponds to said gas hold-up, with a calculated gas hold-up higher than 70%, the presence of foams starting at least from the height of the reactor in which the densimeter is positioned, whose density measured corresponds to said gas hold-up,
finally, determining through said algorithm, the ratio f and the extension in height of the possible presence of foams, calculating the consequent height Hf. |
地址 |
Roma IT |