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AssigneeInstitut Francais du Petrole
InventorsFrancois Ropital, Philippe Dascotte
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The present invention relates to a device comprising a thermobalance equipped with a detector (5) for measuring acoustic signals emitted by a sample (6) hanging from the balance beam and a preamplifier (2) incorporated in the vicinity of the head of the balance. The invention allows gas phase kinetic study of the degradation of materials and of depositions on these materials under temperature (100 to 1400° C.). In particular, corrosion phenomena such as: oxidation, sulfurization, carbonizing, metal dusting, nitriding, hydridation, chlorination, molten salt attack, and combinations of these degradations. Besides, deposits on the materials can be due to coking phenomena (carbon deposits), deposition of molten salts, volatile compounds condensation. The invention allows evaluation of the efficiency of inhibitors against corrosion and deposition processes.
A device for analyzing corrosion and/or deposits on a material sample, comprising means for measuring a mass variation of the material sample, including a thermobalance equipped with a rod for suspending the material sample, the rod comprising a detector for measuring acoustic signals emitted by the material sample, the detector being connected to an amplification means incorporated in the head of the balance.
Dependencies are inferred from the claim text.