Device for heating raw materials

The system of parallel flow with series-connected electrically isolated pipelines addresses power and space limitations in electrically heated raw material heating, achieving higher voltage and power with improved selectivity and yield.

JP2026506999APending Publication Date: 2026-02-27BASF SE +2
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Patent Information

Application Number
JP2025548339
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-02-21
Filing Date
2024-02-20
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Existing electrically heated raw material heating devices face limitations in increasing input power per pipeline due to constraints on pipeline length, voltage, and material resistivity, with high space and installation requirements for switchgear and transformers, necessitating a compact and safe design.

Method used

A system of electrically conductive pipelines arranged for parallel flow with series electrical connections, using galvanic isolation and insulators to increase applicable voltage and power, while reducing the number of voltage reduction components, allowing for higher voltages and compact design.

Benefits of technology

Enables an order of magnitude increase in applicable voltage and power, reduces space and installation requirements, and enhances selectivity and yield of valuable components by optimizing process and electrical engineering parameters.

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Abstract

An apparatus (110) for heating a feedstock is proposed. The apparatus (110) includes a plurality of electrically conductive pipelines (114) for containing the feedstock. The pipelines (114) are arranged to allow parallel flow of the feedstock. The apparatus (110) includes at least one power and / or voltage source (126) configured to supply current to the pipelines (114), which are heated by Joule heating generated when the current passes through the electrically conductive pipe material to heat the feedstock. Each pipeline (110) has a first end (116) and a second end (118). At least one electrical insulator (132) is disposed at the first end (116) and the second end (118) such that each pipeline (114), at least one supply pipeline (120), and at least one discharge pipeline (122) are galvanically isolated from each other. The individual pipelines (114) are electrically interconnected in a series connection.
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Citation Information

Patent Citations

  • Device and method for heating a fluid in a pipeline by means of three-phase current

    WO2015197181A1

  • Device and method for heating a fluid in a pipeline by means of direct current

    WO2020035575A1

  • Device and method for heating a fluid in a pipeline with single-phase alternating current

    WO2021160777A1