Patent ID: 8173853
Filing Date: 2012-05-08
Classification: C07C,Y10S

Abstract:
1. A process for continuously operating a plant for preparing acetylene from hydrocarbons by partial oxidation, cleavage in an arc, cleavage in plasma or pyrolysis of hydrocarbons or carbon to obtain a reaction gas mixture comprising acetylene which is conducted through one or more compressors, the pressure of the reaction gas mixture on the suction side of the compression being controlled within a predefined range by a controller, which comprises additionally using a higher-level model-supported predictive controller which reacts to abrupt changes in the mass flow rate of the reaction gas mixture, wherein the plant comprises two or more compressors connected in parallel and the higher-level model-supported predictive controller calculates a reduced mass flow rate of a compressed reaction gas mixture in the event of failure of one compressor or a plurality of compressors and diverts a corresponding mass flow rate of the reaction gas mixture from the suction side of the compression out of the plant.