Multistory structure for chemical plants

A multistory modular structure having an upper story and a lowest story for a chemical plant for production of a chemical product made from a supply of reaction media and using energy, comprising a plurality of partitions defining a wall, floor and ceiling and subdividing a space into a plurality of rooms superposed to accommodate a plurality of structural segments which structural segments are modules containing all plant components necessary for production of said product to be produced in said chemical plant and are provided with access openings, wherein at least a part of the plant components (5) have associated connections for supply lines for supply of the reaction media and energy as well as associated connections for removal of used liquid and gaseous substances as waste formed in the course of production of said chemical product, said plant components being mounted on casings on wheeled mobile frames (8) which can be moved in and out of said rooms (7) through access openings by extensible tracks (17), said multistory structure further containing at least one auxiliary device selected from the group consisting of means for supplying ventilation to said space, means for purification of said gaseous substance, means for supply of solvents said multistory structure further containing supply lines (10) running vertically and connected to horizontal ring lines (12) which are arranged in tiers in said rooms (7) with the plant components and are connected via couplings (15) to the plant components (5), said mobile frame having complete piping and wiring for connection to said ring lines, whereby production changes to produce different chemical products are possible with little expenditure of personnel and time to permit simple cleaning of plant components and rapid replacement of components.