METHOD FOR PRODUCING PYROLYSIS GAS OR PYROLYSIS OIL FROM BIOGENIC STARTING MATERIALS

• Main Authors: HEIL, Volker, SCHULZKE, Tim
• Format: Patent
• Language: English; French; German
• Published: 16.10.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; FUELS; LUBRICANTS; METALLURGY; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE; PYROLIGNEOUS ACID; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING; WORKING-UP PITCH, ASPHALT, BITUMEN, TAR

A method is described for producing pyrolysis gas and pyrolysis oil from biogenic starting materials. First, a biogenic starting material, selected from ligncocellulosic biomass and lignocellulosic residual substances, and a carbon-based catalyst are provided. The starting material is then thermally treated in a pyrolysis reactor at a temperature T1 to effect pyrolysis of the starting material to liquid, vaporous or gaseous pyrolysis products. These pyrolysis products are then brought into contact with the carbon-based catalyst at a temperature T2 so that deoxygenation of the pyrolysis products to at least partially deoxygenated pyrolysis products occurs. These products are then collected in a separation device in which product separation takes place. In addition to liquid or gaseous pyrolysis products, catalysts that can be used for deoxygenation are also described which can be produced from the solid material that was separated following pyrolysis.