Abstract: The present application provides a method for measuring coking propensity of a fossil fuel, comprising mixing an iron powder with a fossil fuel, wherein the iron powder has an average particle size of less than or equal to 100 ?m; reacting the iron powder with the fossil fuel at a temperature and a pressure sufficient to allow coking for a period of time; separating a supernatant and a solid product after said coking; and analyzing the solid product for carbon content, wherein the carbon content is proportional to the coking propensity. There is also provided is a method for measuring effectiveness of a coking inhibitor.

Abstract: Methods and apparatus relate to measuring corrosion rate. Flowing corrosive fluid contacts a metal coupon or object and results in an effluent stream. The effluent stream contains metal from the object due to reaction of constituents in the fluid with the metal. Analysis of the effluent stream measures concentration of the metal therein. Since the concentration of the metal in the effluent stream is indicative of mass loss from the object, calculations provide the corrosion rate utilizing weight of the metal that is eluted, surface area of the object and exposure time of the object with the corrosive fluid.

Abstract: The present application provides a method for measuring coking propensity of a fossil fuel, comprising mixing an iron powder with a fossil fuel, wherein the iron powder has an average particle size of less than or equal to 100 ?m; reacting the iron powder with the fossil fuel at a temperature and a pressure sufficient to allow coking for a period of time; separating a supernatant and a solid product after said coking; and analyzing the solid product for carbon content, wherein the carbon content is proportional to the coking propensity. There is also provided is a method for measuring effectiveness of a coking inhibitor.

Abstract: Methods and apparatus relate to measuring corrosion rate. Corrosive fluid contacts a metal powder altering physical properties of the metal powder due to resulting corrosion thereof. For example, the corrosion diminishes mass of the metal powder reducing particle size and particle surface area of the metal powder. Since these physical properties of the metal powder are indicative of the corrosion rate, analysis of the metal powder provides the corrosion rate based on difference in the property of the metal powder before and after the contact with the corrosive fluid.

Abstract: Methods and apparatus relate to measuring corrosion rate. Flowing corrosive fluid contacts a metal coupon or object and results in an effluent stream. The effluent stream contains metal from the object due to reaction of constituents in the fluid with the metal. Analysis of the effluent stream measures concentration of the metal therein. Since the concentration of the metal in the effluent stream is indicative of mass loss from the object, calculations provide the corrosion rate utilizing weight of the metal that is eluted, surface area of the object and exposure time of the object with the corrosive fluid.