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US 11,766,654 B2Granted
Method for controlling temperature of a chemical reaction
OwnerErlan H. Feriainventor
Life of this patent
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Abstract
A method for controlling temperature of a chemical reaction without measuring a temperature of the chemical reaction. Changes in mass of a chemical reaction are monitored and are used to calculate the temperature of the system. The reaction can be maintained at a desired temperature (T) without measuring the temperature. The disclosed method is useful for reactions that occur at non-equilibrium conditions where any measured temperature would presume steady-state conditions.
Claims12
A method for controlling temperature without measuring the temperature, the method comprising steps of:
- a) determining an initial system mass (M) of a chemical system which performs an endothermic chemical reaction between reactants in a solvent to produce products, wherein at least one of the products is an exiting product that is a gaseous product or a precipitation product, the chemical reaction having a desired temperature (T);
- b) adding the reactants and the solvent to a vessel, thereby initiating the chemical reaction;
- c) allowing the exiting product to exit the vessel;
- d) measuring a current system mass (Mi);
- e) determining an exited mass (Ei) of the exiting product that exited during step c) based on the current system mass (Mi);
- f) calculating a change in reactant mass (ΔMi′) that occurred based on the exited mass (Ei);
- g) calculating a calculated temperature (Ti) according to:
- T
- i
- =
- α
-
- (
- M
- -
- Δ
-
- M
- i
- M
- )
-
- T
- wherein α is a positive number that is less than 2;
- h) adding additional reactants to the vessel in an amount equal to the exited mass (Ei);
- i) adjusting a temperature of the chemical system to the desired temperature (T) by adding or removing heat based on a temperature change between the calculated temperature (Ti) and the desired temperature (T);
- and
- j) iteratively repeating steps c) to i).
25 more elements
A method for controlling temperature without measuring the temperature, the method comprising steps of:
- a) determining an initial system mass (M) of a chemical system which performs an endothermic chemical reaction between reactants in a solvent to produce products, wherein at least one of the products is an exiting product that is a gaseous product or a precipitation product, the chemical reaction having a desired temperature (T), wherein the chemical system further comprises an inert component that is a solid that is inert with respect to the chemical reaction;
- b) adding the reactants and the solvent to a vessel, thereby initiating the chemical reaction;
- c) allowing the exiting product to exit the vessel;
- d) measuring a current system mass (Mi);
- e) determining an exited mass (Ei) of the exiting product that exited during step c);
- f) calculating a change in reactant mass (ΔMi′) that occurred based on the exited mass (Ei);
- g) calculating a calculated temperature (Ti) according to:
- T
- i
- =
- α
-
- (
- M
- -
- Δ
-
- M
- i
- M
- )
-
- T
- wherein α is a positive number that is less than 2;
- h) adding additional reactants to the vessel in an amount equal to the change in reactant mass ΔMi′;
- i) removing a portion of the inert component given by Ri=ΔMi′−Ei;
- j) adjusting a temperature of the chemical system to the desired temperature (T) by adding or removing heat based on a temperature change between the calculated temperature (Ti) and the desired temperature (T);
- and
- k) iteratively repeating steps c) to i).
26 more elements
A method for controlling temperature without measuring the temperature, the method comprising steps of:
- a) determining an initial system mass (M) of a chemical system which performs an exothermic chemical reaction between reactants in a solvent to produce products, wherein at least one of the products is an exiting product that is a gaseous product or a precipitation product, the chemical reaction having a desired temperature (T);
- b) adding the reactants and the solvent to a vessel, thereby initiating the chemical reaction;
- c) allowing the exiting product to exit the vessel;
- d) measuring a current system mass (Mi);
- e) determining an exited mass (Ei) of the exiting product that exited during step c) based on the current system mass (Mi);
- f) calculating a change in reactant mass (ΔMi′) that occurred based on the exited mass (Ei);
- g) calculating a calculated temperature (Ti) according to:
- T
- i
- =
- 2
-
- T
- -
- (
- α
-
- (
- M
- -
- Δ
-
- M
- i
- M
- )
-
- T
- )
- wherein α is a positive number that is less than 2;
- h) adding additional reactants to the vessel in an amount equal to the exited mass (Ei);
- i) adjusting a temperature of the chemical system to the desired temperature (T) by adding or removing heat based on a temperature change between the calculated temperature (Ti) and the desired temperature (T);
- and
- j) iteratively repeating steps c) to i).
31 more elements
A method for controlling temperature without measuring the temperature, the method comprising steps of:
- a) determining an initial system mass (M) of a chemical system which performs an exothermic chemical reaction between reactants in a solvent to produce products, wherein at least one of the products is an exiting product that is a gaseous product or a precipitation product, the chemical reaction having a desired temperature (T), wherein the chemical system further comprises an inert component that is a solid that is inert with respect to the chemical reaction;
- b) adding the reactants and the solvent to a vessel, thereby initiating the chemical reaction;
- c) allowing the exiting product to exit the vessel;
- d) measuring a current system mass (Mi);
- e) determining an exited mass (Ei) of the exiting product that exited during step c);
- f) calculating a change in reactant mass (ΔMi′) that occurred based on the exited mass (Ei);
- g) calculating a calculated temperature (Ti) according to:
- T
- i
- =
- 2
-
- T
- -
- (
- α
-
- (
- M
- -
- Δ
-
- M
- i
- M
- )
-
- T
- )
- wherein α is a positive number that is less than 2;
- h) adding additional reactants to the vessel in an amount equal to the change in reactant mass ΔMi′;
- i) removing a portion of the inert component given by Ri=ΔMi′−Ei;
- 1 J) adjusting a temperature of the chemical system to the desired temperature (T) by adding or removing heat based on a temperature change between the calculated temperature (Ti) and the desired temperature (T);
- and
- k) iteratively repeating steps c) to i).
32 more elements
Dependencies are inferred from the claim text.