Device and method for converting carbon containing feedstock into carbon containing materials having a defined nanostructure

Abstract

Apparatus and process for producing carbon black or carbon containing compounds by converting a carbon containing feedstock, comprising the following steps: generating a plasma gas with electrical energy, guiding the plasma gas through a venturi, whose diameter is narrowing in the direction of the plasma gas flow, guiding the plasma gas into a reaction area, in which under the prevailing flow conditions generated by aerodynamic and electromagnetic forces, no significant recirculation of feedstock into the plasma gas in the reaction area recovering the reaction products from the reaction area and separating carbon black or carbon containing compounds from the other reaction products.

Description

[0001]This application is a divisional of U.S. patent application Ser. No. 10 / 380,647, now U.S. Pat. No. 7,452,514, which has a § 371 compliance date of Sep. 22, 2003, which is the U.S. national phase of international patent application No. PCT / EP01 / 10835 (WO 02 / 24819 A1), filed Sep. 19, 2001, which claims priority to European Patent App. No. 00120115.1, filed Sep. 19, 2000, all of which are incorporated herein by reference in their entireties for all purposes.TECHNICAL FIELD[0002]A process and an apparatus are disclosed for converting carbon containing feedstock into carbon black or other carbon containing materials, having a defined nanostructure.[0003]More than 99% of the carbon black is presently produced by incomplete combustion processes. By far, the dominant process is a furnace process developed sixty years ago. Other processes include channel, thermal and lamp processes. All these industrial processes are characterized by the combustion of about 40% to 60% of the feedstock ...

AI Technical Summary

Benefits of technology

The patent describes a process and apparatus for producing carbon black with well-defined properties. The process allows for control of operating conditions and reproducible product quality. The carbon black can be produced from low-cost carbon-containing feedstocks, such as recycled oil from tire pyrolysis. The process involves creating a plasma by directing plasma gas through an electric arc, injecting the feedstock into the plasma, and controlling the reaction temperature. The carbon black has a defined nanostructure and reproducible quality. The process can be performed with inexpensive and readily available materials.

Problems solved by technology

Further, the production of new materials is limited by the process chemistry, i.e., chemical composition and available energy.

No evidence has been given that these processes can produce carbon black on a commercial scale.

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