System and method for monitoring a reforming catalyst
AssigneeChevron Phillips Chemical Company LP
InventorsIsrael Garcia, Scott G. Morrison
Life of this patent
Estimating the term…
Abstract
A method of monitoring catalytic performance of a catalyst used in a reforming process, comprising a) collecting gaseous component data from the reforming process; b) calculating a gaseous component ratio from the gaseous component data; and c) utilizing the gaseous component ratio to estimate an amount of catalytic activity remaining in the catalyst used in the reforming process, a number of days on stream remaining for the catalyst used in the reforming process, or both.
Claims10
A method of modeling catalytic performance of a catalyst used in a reforming process, comprising:
- a. constructing a two-coordinate graph containing a vertical axis for gaseous component ratio data and a horizontal axis for catalyst activity factor data;
- b. obtaining a set of gaseous component ratio data and a set of catalyst activity factor data for the reforming process;
- c. representing the set of gaseous component ratio data and the set of catalyst activity factor data upon the two-coordinate graph;
- d. constructing a best-fit curve upon the two-coordinate graph, wherein the best-fit curve represents a graphical relationship of the set of gaseous component ratio data and the set of catalyst activity factor data;
- e. assigning a catalyst activity end-of-run value and representing the catalyst activity end-of-run value as a vertical line upon the two-coordinate graph;
- and
- f. determining a point of intersection of the best-fit curve with the vertical line and assigning a vertical axis value of the point of intersection as a gaseous component mole ratio end-of-run (M-EOR) value.
A method of modeling catalytic performance of a catalyst used in a reforming process, comprising:
- a. constructing a two-coordinate graph containing a vertical axis for gaseous component ratio data and a horizontal axis for days-on-stream (DOS) data;
- b. obtaining a set of gaseous component ratio data and a set of DOS data for the reforming process;
- c. representing the set of gaseous component ratio data and the set of DOS data upon the two-coordinate graph;
- and
- d. constructing a best-fit curve upon the two-coordinate graph, wherein the best-fit curve represents a graphical relationship of the set of gaseous component ratio data and the set of DOS data;
- e. assigning a gaseous component ratio end-of-run value and representing the gaseous component ratio end-of-run value as a horizontal line upon the two-coordinate graph;
- and
- f. determining a point of intersection of the best-fit curve with the horizontal line and assigning a horizontal axis value of the point of intersection as a DOS end-of-run (D-EOR) value.
Dependencies are inferred from the claim text.