Casale Sa

Fabio Laurenzi

Raffaele Ostuni

Jean Francois Granger

Process for reducing the content of NOx and N2O from an input tail gas of a nitric acid process, said input tail gas having a temperature lower than 400° C., the process comprising an abatement stage at least including a deN2O stage and deNOx stage and providing a conditioned tail gas having a temperature greater than the input tail gas, wherein, prior to submission to said abatement stage, said input tail gas is pre-heated to a temperature of at least 400° C. by indirect heat exchange with at least a portion of said conditioned gas.

Process for reducing the content of NOx and N2O from a tail gas of a nitric acid process

A process for the synthesis of methanol, comprising the steps of reforming a hydrocarbon source obtaining a make-up gas feed (), feeding said make up gas to a synthesis loop (L), converting said make up gas to methanol () in a substantially isothermal catalytic environment, wherein said catalytic environment comprises a plurality of isothermal catalytic beds () preferably arranged in series, and at least a portion of make-up gas () is mixed with recycle gas () from the loop (L), obtaining a gaseous mixture of fresh gas and recycle gas, and at least a portion of said gaseous mixture is directed between two consecutive catalytic beds acting as a quench gas. A related plant is also disclosed.

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Lugano, Switzerland

Fabio Laurenzi