发明名称 |
Catalyst regeneration |
摘要 |
A system for controlling the addition of small amounts of material to process using the loss-in-weight method. The system uses digital control in combination with an on-off solenoid valve whose on time can be varied to meter the material uniformly at low rates.
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申请公布号 |
US4211340(A) |
申请公布日期 |
1980.07.08 |
申请号 |
US19780935196 |
申请日期 |
1978.08.21 |
申请人 |
SHELL OIL |
发明人 |
SZAKASITS, JULIUS J;WADHAM, THOMAS C |
分类号 |
G05D7/06;(IPC1-7):B01J37/24 |
主分类号 |
G05D7/06 |
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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