Method for monitoring a process engineering installation, and process engineering installation

A method for monitoring a process engineering installation, the method comprising:

• measuring actual value(s) of at least one operating parameter of the process engineering installation occurring during operation of the process engineering installation,
• determining values of the at least one performance parameter of the process engineering installation, using a model of the process engineering installation, from the actual value(s) of the at least one operating parameter of the process engineering installation measured during operation of the process engineering installation,
• determining comparative values of the at least one performance parameter of the process engineering installation, using the model, from setpoint values of the at least one operating parameter, and
• determining at least one performance gap of the operation of the process engineering installation based on mutually corresponding values and comparative values of the at least one performance parameter,
• wherein the at least one operating parameter is selected from flow of a medium in the process engineering installation, a temperature of a component of the process engineering installation, a temperature of a medium in the process engineering installation, a composition of a medium in the process engineering installation, and/or a pressure of a medium in the process engineering installation;
• determining an improvement measure for the at least one performance gap;
• and
• providing the improvement measure via a communication means.