HydrierungPyrolyse

HydrierungPyrolyse is a chemical process that integrates hydrogenation and pyrolysis to convert organic feedstocks into useful liquid products. The technique first subjects the feed to pyrolysis, a thermal decomposition in the absence of oxygen, producing a mixture of gases, liquids and solid char. During or immediately after the pyrolysis step, hydrogen gas or a hydrogen donor is introduced in the presence of a catalyst. The hydrogenation step saturates the unsaturated bonds in the liquid fraction and can reduce the viscosity and improve the stability of the product.

Typical feedstocks for HydrierungPyrolyse include lignocellulosic biomass, pyrolysis oil derived from plastics, and other polymer wastes. The process is designed to improve the yield of liquid hydrocarbons and reduce the amount of solid residue. Common catalysts are metal–support systems such as nickel or cobalt on alumina, lanthanum oxide, or zeolitic materials doped with transition metals. The catalyst not only facilitates hydrogen addition but also promotes cracking of larger molecules into lighter hydrocarbons.

One of the key advantages of HydrierungPyrolyse is its ability to convert waste plastics into drops of fuel that can feed into existing petroleum infrastructure. The combined action of thermal and catalytic steps allows for a higher overall conversion efficiency compared to conventional pyrolysis followed by separate hydrogenation. The process can also be tuned to target specific product ranges by adjusting temperature, pressure and catalyst composition.