Device and method for testing catalysts with variable process pressure adjustment

A catalysis apparatus, comprising:

• a plurality of reaction chambers, wherein each reaction chamber is directly connected to a common reactant fluid supply line and comprises a corresponding reaction chamber outlet-side line, and
• a common reactant fluid supply connected to the common reactant fluid supply line,
• wherein each reaction chamber outlet-side line is operatively connected to a corresponding main line which in turn branches into secondary lines and tertiary lines,
• wherein each tertiary line combines into a main line, which is operatively connected to a common regulating valve and a common exhaust-airline which both are located downstream of the plurality of the reaction chambers, wherein the common regulating valve and the common exhaust-airline are located downstream of the plurality of the reaction chamber, wherein the connection of each main line to the common regulating valve and the common exhaust-gas line is via the common exhaust-air line, and wherein the downstream side of the common regulating valve is in communication with the common exhaust-air line, wherein the outside of the exhaust air line may be optionally connected to the inlet of a vacuum pump,
• wherein each secondary line is operatively connected to a corresponding restrictor element and to a common analysis unit, wherein each restrictor element is a high-temperature regulating valve or comprises a cascade of regulating valves or high-temperature regulating valves,
• wherein the common regulating valve is a high-temperature regulating valve or comprises a cascade of regulating valves or high-temperature regulating valves,
• wherein a connecting line between each main line and corresponding secondary line is equipped with a cascaded series of a switching valve and of the restrictor element guiding fluids to a multi-port valve or the restrictor element and downstream of the multi-port valve or the restrictor element to the common analytical device,
• optionally, the branching takes place at the connecting ports of a mixing vessel, and
• the apparatus is suitable for testing solid state catalysts in a continuous process.