改質触媒の再生方法 - IFP ENERGIES NOUVELLES

Title:

改質触媒の再生方法

Document Type and Number:

Japanese Patent JP5319689

Kind Code:

B2

Abstract:

Process for regenerating a catalyst for producing or reforming aromatic hydrocarbon, comprises (a) combustion in a combustion zone A comprising two combustion beds A1 and A2 in series, (b) oxychlorinating in oxychlorinating zone B comprising one oxychlorinating bed, where the oxychlorinating zone B is fed by a chlorinating agent, water or water precursors and gas comprising oxygen, and (c) calcining in a calcining zone C comprising a calcining bed fed by a gas comprising at least an auxiliary dry air. Process for regenerating a catalyst for producing or reforming aromatic hydrocarbon, comprises (a) combustion in a combustion zone A comprising two combustion beds A1 and A2 in series, (b) oxychlorinating in oxychlorinating zone B comprising one oxychlorinating bed, where the oxychlorinating zone B is fed by a chlorinating agent, water or water precursors and gas comprising oxygen, and (c) calcining in a calcining zone C comprising a calcining bed fed by a gas comprising at least an auxiliary dry air, where: the catalyst comprises a support, chlorine and at least a noble metal and is circulated in beds A1 and A2 serially, in the oxychlorinating zone B and in the calcining zone C; effluent gas of bed A1 is sent to bed A2; the gas feeding in the calcining zone C circulates freely towards the oxychlorinating zone B; the auxiliary gas comprising oxygen is produced in an entry of the calcining zone; the effluent gas of the oxychlorinating zone is partly recycled through washing section D towards the entry of the combustion beds A1 and A2; the effluent gas of the oxychlorinating zone is partly recycled by a blower without passing by the section D towards the combustion bed A2; and the effluent gas of the combustion bed A2 is partly recycled through the section D towards the entry of the beds A1 and A2.

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JPH0714486	INDUSTRIAL APPLICABILITY: Dry method for regenerating catalyst

Inventors:

Ducort Xavier
Duran sebastian
Le Goff Pierre-Eve
Wellmester Stefan

Application Number:

JP2010530504A

Publication Date:

October 16, 2013

Filing Date:

October 17, 2008

Export Citation:

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Assignee:

IFP ENERGIES NOUVELLES

International Classes:

B01J38/04; B01J27/32; B01J38/12; B01J38/44; C10G35/085

Domestic Patent References:

JP10286471A
JP10286472A
JP2290259A
JP2001310134A
JP10296094A
JP10286470A
JP49002161B1

Foreign References:

US5034117

Attorney, Agent or Firm:

Einosuke Kishimoto
Akira Watanabe
Matsumura Naoto

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