Storage containers with delivery pumps for introducing oil, storage containers with delivery pumps for introducing catalysts; compressors, in particular with an upstream- and downstream-connected buffer container; preheaters for gas, in particular with a heating coil; storage containers for biomass, in par-ticular with pneumatic discharge; mechanical pumps for liquids, in particular with solids contained therein, as well as for vapor- or gas-form media; pump housings as parts of mechanical pu...