PROCESSES AND SYSTEMS FOR PURIFYING SILANE

摘要

Processes and systems for purifying silane-containing streams and, in particular, for purifying silane-containing streams that also contain ethylene are disclosed. The processes and systems may be arranged such that one or more ethylene reactors are downstream of light-end distillation operations.

主权项

1. A system for purifying a silane-containing stream, the stream comprising silane, ethylene and one or more compounds having a boiling point less than silane, the system comprising:
a reactor for converting ethylene to at least one of ethylsilane and ethane and for producing an ethylene-depleted stream relative to the silane-containing stream; a light-ends distillation column for producing a silane-depleted overhead fraction and a silane-enriched bottoms fraction relative to the ethylene-depleted stream, the silane-enriched bottoms fraction comprising silane and at least one of ethylsilane and ethane; and a conveying apparatus for conveying the ethylene-depleted stream from the reactor to the light-ends distillation column.