Process for the preparation of urea
A process for the preparation of urea comprising adding methanol to a carbon monoxide containing gas, contacting the carbon monoxide-containing gas, methanol and water in at least one shift step in the presence of a catalyst comprising copper, zinc and aluminium and/or chromium to produce a stream r...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A process for the preparation of urea comprising adding methanol to a carbon monoxide containing gas, contacting the carbon monoxide-containing gas, methanol and water in at least one shift step in the presence of a catalyst comprising copper, zinc and aluminium and/or chromium to produce a stream rich in carbon dioxide, transferring the carbon dioxide-rich stream from the at least one shift step to a urea reactor and reacting the carbon dioxide with ammonia to produce urea. |
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