发明名称 |
Control system for a furfural refining unit receiving medium sweet charge oil |
摘要 |
A furfural refining unit treates medium sweet charge oil with a furfural solvent in a refining tower to yield raffinate and extract mix. The furfural is recovered from the raffinate and from the extract mix and returned to the refining tower. A system controlling the refining unit includes a gravity analyzer, a refractometer and viscosity analyzer, all analyzing the medium sweet charge oil and providing corresponding signals, sensors sense the flow rates of the charge oil and the furfural flowing into the refining tower and the temperature of the extract mix and provide corresponding signals. One of the flow rates of the medium sweet charge oil and the furfural flow rates is controlled in accordance with the signals from all the analyzers and all the sensors, while the other flow rate of the medium sweet charge oil and the furfural flow rates is constant.
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申请公布号 |
US4161427(A) |
申请公布日期 |
1979.07.17 |
申请号 |
US19780912913 |
申请日期 |
1978.06.05 |
申请人 |
TEXACO INC |
发明人 |
BARGER, FRANK L;BEGNAUD, JOHN D;SEQUEIRA, AVILINO JR |
分类号 |
C10G21/30;(IPC1-7):C10G21/00 |
主分类号 |
C10G21/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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