| 摘要 |
A modified purifier process, includes supplying a first stream of a feed gas containing hydrogen and nitrogen in a mol ratio of about 2:1, and also containing methane and argon, then cryogenically separating the feed gas into the following: f) a second stream of synthesis gas containing hydrogen and nitrogen in a mol ratio of about 3:1, g) waste gas containing principally nitrogen, and also containing some hydrogen and all of the methane supplied in the first stream, and splitting the waste gas into: h) a third stream of hydrogen/nitrogen gas i) a fourth stream of high concentrated nitrogen j) a fifth stream of methane rich gas, to be used as fuel. The combined second and third streams typically are passed to an ammonia synthesis process.
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