Integrated process and catalysts for manufacturing hydrogen iodide from hydrogen and iodine
AssigneeHoneywell International Inc.
InventorsTerris Yang, Haiyou Wang, Yuon Chiu, Richard Wilcox, Christian Jungong, Haluk Kopkalli
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Abstract
The present invention provides a process for producing hydrogen iodide. The process includes providing a vapor-phase reactant stream comprising hydrogen and iodine and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide. The catalyst includes at least one selected from the group of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide. The catalyst is supported on a support.
Claims22
A process for producing hydrogen iodide, the process comprising:
- providing a vapor-phase reactant stream comprising hydrogen and iodine;
- and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide, wherein the catalyst consists of at least one selected from the group consisting of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide, and wherein the catalyst is supported on a support.
A process for producing hydrogen iodide, the process comprising the following steps:
- reacting hydrogen and iodine in the vapor phase in the presence of a catalyst to produce a product stream comprising hydrogen iodide and unreacted iodine, wherein the catalyst consists of at least one selected from the group consisting of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide, and wherein the catalyst is supported on a support;
- removing at least some of the unreacted iodine from the product stream by cooling the product stream to form solid iodine, the solid iodine forming in one of:
- a first iodine removal vessel;
- or
- a second iodine removal vessel;
- producing liquid iodine from the solid iodine by:
- heating the first iodine removal vessel to liquefy the solid iodine when cooling the product stream through the second iodine removal vessel;
- or
- heating the second iodine removal vessel to liquefy the solid iodine when cooling the product stream through the first iodine removal vessel;
- and
- vaporizing the liquid iodine and recycling the vaporized iodine to the reactant stream.
Dependencies are inferred from the claim text.