A method of increasing efficiency in a processing plant, the method comprising, by a processor: from a source of templates, identifying a template corresponding to a configuration of a reactor, wherein each template comprises a set of pre-defined independent variables and a set of pre-defined dependent variables; creating a rigorous reactor model, said rigorous reactor model comprising the set of pre-defined independent variables and the set of pre-defined dependent variables in the identified template; characterized by the following steps: using a simulator, running the rigorous reactor model with possible candidate values for the set of pre-defined independent variables and the set of pre-defined dependent variables to identify a set of relationships between the set of pre-defined independent variables and the set of pre-defined dependent variables; building a runtime model using the identified set of relationships between the set of pre-defined independent variables and the set of pre-defined dependent variables; and storing the runtime model on a database; wherein the runtime model further comprises a set of tuning factors, and wherein implementation of data produced by at least one of the runtime models into a planning model increases efficiency in the plant. from a source of templates, identifying a template corresponding to a configuration of a reactor, wherein each template comprises a set of pre-defined independent variables and a set of pre-defined dependent variables; creating a rigorous reactor model, said rigorous reactor model comprising the set of pre-defined independent variables and the set of pre-defined dependent variables in the identified template; characterized by the following steps: using a simulator, running the rigorous reactor model with possible candidate values for the set of pre-defined independent variables and the set of pre-defined dependent variables to identify a set of relationships between the set of pre-defined independent variables and the set of pre-defined dependent variables; building a runtime model using the identified set of relationships between the set of pre-defined independent variables and the set of pre-defined dependent variables; and storing the runtime model on a database; wherein the runtime model further comprises a set of tuning factors, and wherein implementation of data produced by at least one of the runtime models into a planning model increases efficiency in the plant. using a simulator, running the rigorous reactor model with possible candidate values for the set of pre-defined independent variables and the set of pre-defined dependent variables to identify a set of relationships between the set of pre-defined independent variables and the set of pre-defined dependent variables; building a runtime model using the identified set of relationships between the set of pre-defined independent variables and the set of pre-defined dependent variables; and storing the runtime model on a database; wherein the runtime model further comprises a set of tuning factors, and wherein implementation of data produced by at least one of the runtime models into a planning model increases efficiency in the plant.