TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The plant further comprises a product gas cooler for cooling the product gas. A gas turbine for recovering energy is installed after the pressure swing adsorption unit or the membrane reactor. A pipeline for flue gas is arranged between the gas turbine and the Rectisol wash (RTM: Acid gas removal process using methanol as a solvent), the membrane reactor, the amine scrubber, the carbonate wash or the pressure swing reactor. A high-pressure urea reactor is arranged after the ammonia synthesis reactor, where a pipeline for ammonia is arranged between the ammonia synthesis reactor and the high-pressure urea reactor, and a pipeline for carbon dioxide is arranged between the Rectisol wash (RTM: Acid gas removal process using methanol as a solvent) and the high-pressure urea reactor. A buffer container is arranged in or at the pipelines for hydrogen, flue gas and carbon dioxide. A fabric-or packed-bed filter is used for particle separation and a wet scrubber or an activated carbon filter is used for tar precipitation. The pressure swing adsorption unit is a molecular sieve arranged with palladium or noble metal particles or palladium or noble metal membrane.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method further comprises reacting the produced ammonia and carbon dioxide in a high-pressure urea reactor to obtain urea. The product gas obtained from the biomass is subjected to cooling and particulate- and tar precipitation. The pressurized product gas is supplied into a gas turbine for power generation. The exhaust stream of the gas turbine along with the flue gas is subjected to gas treatment. The carbon dioxide is separated from flue gas by Rectisol wash (RTM: Acid gas removal process using methanol as a solvent) using methanol at low temperatures, or in a membrane reactor, or amine or carbonate wash, or by pressure swing adsorption. Preferred Components: The product gas exhibits a minimum pressure of 10 bar, after passing through the pressure swing adsorption unit or the membrane reactor. EXAMPLE - No suitable example given.