Method and device for the photoinduced conversion of CO2 to methanol

An installation for the production of methanol by the CO2 conversion route in a photocatalytic process, equipped with a reaction tank (1) made of a transparent material partially or completely transmittable for the UV-VIS-FIR wavelength, connected from the top to a base liquid tank (9) provided with a programmable injection pump and connected from the top to a vapour condenser subsystem (13), wherein the vapour condenser subsystem (13) is connected in the upper part to a deaerator (14) and in the lower part to an intermediate tank (13) for methanol, and further the intermediate tank (13) through a valve (16) is connected to the target tank (17) for methanol equipped with a programmable pump, the reaction tank (1) further contains a graphene suspension (2) and the reaction tank (1) is connected from the top by a carrier gas supply (10) to a process controller (11) connected to the carrier gas installation (12), in the part where the reaction tank (1) is made of transparent material partially or completely transmittable for the UV-VIS-FIR wavelengths, there is an optical system (8) equipped with a light sensor (F) and connected by an optical fiber (7) to an electromagnetic radiation emitter (6), wherein the reaction tank (1) is embedded in the body (3) by means of a mounting (4) and additionally in the lower part of the reaction tank (1) there is a temperature sensor (T), and in the upper part of the reaction tank (1) there is a pressure sensor (P).