High temperature simulated distillation
AssigneeExxonMobil Research and Engineering Company
InventorsFrank P. DiSANZO, Howard J. FREUND, Edward A. MOY
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Abstract
Systems and methods for determining a boiling point distribution of a sample include controlling the rates of temperature increase for a column and an injection port. An analyzer includes a column having a column heating element and an injection port having an injection port heating element. The temperature of the column can be increased at a first rate, and a temperature of the injection port can be increased at a second rate. The first and second rates are selected such that the temperature of the injection port is within about five to fifteen degrees Celsius of the temperature of the column when the temperature of the injection port reaches a target temperature of minimal thermal decomposition.
Claims25
A method for determining a boiling point distribution of a sample, the method comprising:
- providing an analyzer comprising;
- a column comprising a column heating element;
- and
- an injection port coupled to the column, the injection port comprising an injection port heating element;
- introducing a sample into the injection port;
- raising a temperature of the column at a first rate using the column heating element;
- and
- raising a temperature of the injection port at a second rate using the injection port heating element,
- wherein the first rate and the second rate are selected such that the temperature of the injection port is within about fifteen degrees Celsius of the temperature of the column when the temperature of the column reaches a target temperature.
A system for determining a boiling point distribution of a sample, the system comprising:
- an analyzer comprising:
- a column comprising a column heating element;
- and
- an injection port coupled to the column, the injection port comprising an injection port heating element;
- wherein the analyzer is configured to raise a temperature of the column at a first rate using the column heating element, and to raise a temperature of the injection port at a second rate using the injection port heating element, wherein the first rate and the second rate are selected such that the temperature of the injection port is within fifteen degrees Celsius of the temperature of the column when the temperature of the column reaches a target temperature.
Dependencies are inferred from the claim text.