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US 4,357,667 AGranted
On-line oil-in-wax monitoring apparatus and method
AssigneeTexaco Inc.
InventorLeonidas Skarlos
Life of this patent
Estimating the term…
Abstract
An on-line oil-in-wax monitor includes a sampling device which samples a stream of a liquid wax and oil mixture periodically to provide samples. The wax in each sample is solidified. Sensing apparatus senses the oil in each sample and provides a corresponding sensed oil signal. The oil content of the stream is then indicated in accordance with the sensed oil signal.
Claims7
An on-line oil-in-wax monitor comprising means for periodically sampling a stream of liquid wax and oil to provide samples,
- means for solidifying the wax in each sample;
- means for sensing the oil in each sample and providing a sensed oil signal corresponding thereto;
- and
- means for indicating the oil content of the stream in accordance with the sensed oil signal, said indicating means includes
- means connected to the sensing means for sampling and holding the sensed oil signal while it is a proper signal to provide a corresponding signal,
- oil signal means connected to the sample and hold means and receiving direct current voltages corresponding to a standard oil signal, to the ratio of the weight of the oil standard to the weight of the sample, and to the value of 100 for providing a signal W corresponding to the percent weight of oil in the oil and wax stream in accordance with the signal from the sample and hold means and the received direct current voltages and the following equation:
- % Oil=(SW/SO)(WO/WW)100,
- where SW corresponds to the held sensed oil signal, SO corresponds to a sensed oil signal representative of an oil standard sample, WO is the weight of the oil standard sample and WW is the weight of the sample, and
- indicator apparatus connected to said oil signal means which provides an indication of the percent weight of oil in the stream in accordance with signal W.
6 more elements
A method for the on-line determination of the oil content of a stream of liquid wax and oil which comprises the steps of
- periodically sampling the stream to provide samples,
- sensing the oil in each sample,
- providing a sensed oil signal in accordance with the sensing,
- providing a plurality of reference signals corresponding to different percent weights of oil in wax,
- comparing the sensed oil signal with the reference signals,
- selecting a reference signal representative of the percent weight of oil in the stream in accordance with the comparison, and
- indicating the oil content of the stream in accordance with the sensed oil signal selected reference signal.
4 more elements
Dependencies are inferred from the claim text.