Solid state fermentation reactor equipped with active support material

A process generating from gases or gases and liquids by solid state fermentation, the process comprising:

• a) providing a bioreactor, the bioreactor comprising:
• (1) a gas or gas and liquid distribution system;
• and
• (2) a gas or liquid or solids collection system, wherein the bioreactor comprises a solid phase, a liquid phase and a gaseous phase, the solid phase comprises a porous solid support in which at least 20% of the pore volumes have a pore size resulting in a liquid suction of about 0.01 to about 0.1 bar if pores of this sizes are filled with liquid, the porous solid support is inoculated with desired micro-organisms, the unsaturated capillary conductivity of the packed solid material is at least 0.1 cm/h, said solid support has a cationic exchange capacity of at least 0.1 mmol/g, anion exchange capacity of at least 0.01 mmol/g, and a specific surface area of at least 5 m2/g, the volume of the gaseous phase is 20% to 60% of the volume of the bioreactor and the liquid phase is at least 20% of the reactor volume and the solid support material is not silica-based material;
• b) feeding gas or gases and liquids into the bioreactor;
• c) bioconverting anaerobically or aerobically said gas or gases and liquids into gaseous, liquid or solid products;
• and
• d) collecting the product from the bioreactor. comprising vermiculite-like material, material mixtures comprising synthetic vermiculites, synthetic cation exchange resins, various peat types, and mixtures thereof.