Coke with additives

US11434428B2 · kind B2 · utility

Assignee

• Tokai COBEX GmbH · DE

Inventors

• Oswin Öttinger · Meitingen, DE
• Heribert Walter · Oebisfelde, DE
• Martin Christ · Osterode, DE
• Johann Daimer · Bad Aibling, DE
• Wilhelm Frohs · Meitingen, DE
• Frank Hiltmann · Kriftel, DE
• Rainer Schmitt · Meckenheim, DE

Key dates

• Filing date: Jan 30, 2017
• Grant date: Sep 6, 2022
• Expiry date: Jan 30, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9607
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Coke including additives that are accumulated at the yield points or in the regions surrounded by the yield points. For homogeneous distribution, the additives are continuously dosed into the delayed coker during the filling time. The dosing can be carried out by powdery blowing with an inert gas (nitrogen) or also distributed in a slurry consisting of the reaction components and a partial flow of the coker feed (vacuum resid, pytar, decant oil or coal-tar distillates). According to an advantageous form of embodiment, the additives may optionally have a diameter of between 0.05 mm and 5 mm, preferably between 1 mm and 3 mm. Advantageously, the additives can be selected from at least one of acetylene coke, fluid coke, flexi coke, shot coke, carbon black, non-graphitisable carbons (chars), non-graphitic anthracite, silicon carbide, titanium carbide, titanium diboride or mixtures thereof.