Process for producing a regenerable oxide-based adsorbent

Patent metadata

Field	Value
Publication number	US-9561488-B2
Application number	US-201514973923-A
Country	US
Kind code	B2
Filing date	Dec 18, 2015
Priority date	Nov 2, 2012
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A zinc titanate reactive adsorbent comprising multiphase, polycrystalline nanofibers comprising ZnTiO 3 , ZnO, TiO 2 , and Zn 2 TiO 4 .

First claim

We claim:

1. A process for producing a zinc titanate reactive adsorbent comprising electrospinning a solution, the solution comprising an organic zinc-containing compound and a titanium-containing compound wherein the organic zinc-containing compound comprises zinc acetate dihydrate and the titanium-containing compound comprises titanium (IV) isopropoxide,
wherein the zinc titanate adsorbent comprises multiphase, polycrystalline nanofibers comprising ZnTiO 3 , ZnO, TiO 2 , and Zn 2 TiO 4 , and having a diameter ranging from 350 to 800 nm.

2. The process of claim 1 , further comprising a sulfidation step operated at a sulfidation temperature and a regeneration step operated at a regeneration temperature, wherein the sulfidation temperature and the regeneration temperature are within 5° C. of each other.

3. The process of claim 2 wherein the sulfidation temperature and the regeneration temperature are the same.

Assignees

• Univ Illinois

Inventors

• Jain Prashant
• Behl Mayank
• Shannon Mark
• Yeom Junghoon

Classifications

• B01D53/52

  Hydrogen sulfide · CPC title

• B01D2253/304

  Linear dimensions, e.g. particle shape, diameter · CPC title

• B01D2251/602

  Oxides · CPC title

• Y10T442/60

  Nonwoven fabric [i.e., nonwoven strand or fiber material] · CPC title

• B01D2253/25

  Coated, impregnated or composite adsorbents · CPC title