公开(公告)号：US20220349078A1

公开(公告)日：2022-11-03

申请号：US17596027

申请日：2020-05-28

Applicant: BASF SE ,  thyssenkrupp AG ,  thyssenkrupp Industrial Solutions AG

Inventor： Frederik SCHEIFF ,  Marc Leduc ,  Andreas Bode ,  Karsten Bueker ,  Nicolai Antweiler

IPC: C25C3/22 ,  C01B3/38 ,  C10K3/02 ,  C07C1/12 ,  C07C29/50 ,  C01B32/40 ,  C25C3/12

Abstract: A process can be used for the treatment of an offgas stream, which is formed in a plant for the production of aluminum by electrolytic reduction of aluminum oxide in a melt, using at least one anode composed of a carbon-containing material. The offgas stream contains carbon oxides due to the reduction of the aluminum oxide by the carbon. At least a substream of the carbon oxides contained in the offgas stream is reacted with hydrogen or mixed with a hydrogen stream and is subsequently passed to a use. After purification and conditioning of the offgas stream in a device, an enrichment, for example with carbon monoxide, can subsequently be carried out in a reactor and the synthesis gas obtained in this way can be fed to a chemical or biotechnological plant for the synthesis of chemicals of value.

公开(公告)号：US20210277526A1

公开(公告)日：2021-09-09

申请号：US17250390

申请日：2019-07-15

Applicant: BASF SE

Inventor： Frederik SCHEIFF ,  Marc Leduc ,  Andreas Bode ,  Sabine Eichhorn ,  William Daloz ,  Julien Wyss

IPC: C25B11/043 ,  C25B1/00 ,  C25B11/02

Abstract: A blend composition contains a mixture of petroleum coke and pyrolytic carbon. An electrode recipe, and the use of this electrode as an anode in the process of producing aluminum are described.

公开(公告)号：US20220235479A1

公开(公告)日：2022-07-28

申请号：US17595982

申请日：2020-05-28

Applicant: BASF SE ,  thyssenkrupp AG ,  thyssenkrupp Industrial Solutions AG

Inventor： Frederik Scheiff ,  Marc Leduc ,  Andreas Bode ,  Karsten Bueker ,  Nicolai Antweiler

IPC: C25C3/22 ,  C25C3/12

Abstract: A process can utilize carbon oxides formed in the production of aluminum, by electrolytic reduction of aluminum oxide in a melt using at least one anode made of a carbon-comprising material. A pyrolysis of hydrocarbons, in particular methane or natural gas, is carried out in which pyrolysis carbon and hydrogen are formed. The pyrolysis carbon is used for the production of the at least one anode. The hydrogen formed in the pyrolysis of methane is mixed with carbon dioxide and/or carbon monoxide from the electrolytic production of aluminum, to produce a gas stream which is parsed to a further use. An integrated plant contains an electrolysis apparatus for producing aluminum by melt-electrolytic reduction of aluminum oxide, and also contains at least one reactor in which pyrolysis carbon and hydrogen are produced by pyrolysis of hydrocarbons.

公开(公告)号：US20220228280A1

公开(公告)日：2022-07-21

申请号：US17596000

申请日：2020-05-28

Applicant: BASF SE ,  thyssenkrupp AG ,  thyssenkrupp Industrial Solutions AG

Inventor： Frederik Scheiff ,  Marc Leduc ,  Grigorios Kolios ,  William Daloz ,  Karsten Bueker ,  Nicolai Antweiler ,  Andreas Bode

IPC: C25C7/02 ,  C01B3/24 ,  C01B32/05 ,  C25C3/06 ,  C25C3/12

Abstract: An integrated process contains the following steps of: (i) pyrolysis of hydrocarbons to carbon and hydrogen, (iia) removal of at least a part of the produced carbon in step (i) and at least partly further processing of said carbon into a carbon containing electrode, and (iib) removal of the hydrogen produced in step (i) and at least partly using said hydrogen for providing energy, preferably electric energy or heat, for the electrode production in step (iia). A joint plant is also useful, which contains (a) at least one reactor for a pyrolysis process, (b) at least one reactor for the production of electrodes for an aluminum process, (c) a power plant and/or at least one gas-fired burner, and optionally, (d) at least one reactor for the electrolysis for producing aluminum.