Purification process
AssigneeJohnson Matthey Public Limited Company
InventorsColin Baptist, Claire Cahill, Matthew John Cousins, David Davis, Michelle Taylor Wilson, Christopher John Young
Life of this patent
Estimating the term…
Abstract
A process is described for removing halogen compounds, particularly chlorine compounds, from a process fluid, comprising the steps of (i) passing a process fluid containing hydrogen halide over a first sorbent to remove hydrogen halide and generate a hydrogen halide depleted process fluid and then, (ii) passing the hydrogen halide depleted process fluid over a second different sorbent to remove organic halide compounds therefrom. A purification system suitable for removing hydrogen halide and organic halide compounds from process fluids is also described.
Claims20
A process for removing a halogen compound from a process fluid, comprising the steps of:
- (i) passing a process fluid containing hydrogen halide over a first sorbent comprising an alkalized alumina to remove hydrogen halide and generate a hydrogen halide depleted process fluid;
- and then
- (ii) passing the hydrogen halide depleted process fluid over a second sorbent comprising zeolite 13X to remove an organic halide compound.
A purification system for removing a halogen compound from a process fluid, the system comprising:
- a first sorbent that removes hydrogen halide from said process fluid to generate a hydrogen halide depleted process fluid;
- and
- a second sorbent downstream of said first sorbent that removes the organic halide compound from the hydrogen halide depleted process fluid,
- wherein:
- the first sorbent comprises pellets, granules or extrudates comprising an alkalised alumina, and the second sorbent comprises pellets, granules or extrudates comprising zeolite 13X.
Dependencies are inferred from the claim text.