What is the difference between feed gas, syngas, and raw gas?
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This post was last edited by niuky on 2009-8-29 10:04. I have two questions: 1) Is the feed gas, the raw gas, a fixed type of gas, or do its components vary depending on different process requirements? What ingredients? 2) Syngas – can syngas serve as a feed gas in different situations, right? 3) What is raw gas?
The feed gas isn’t a raw material with fixed composition, right? For example, the feed gas for Fischer-Tropsch synthesis is syngas, which consists of hydrogen and carbon monoxide, while the feed gas for Haber-Bosch synthesis (ammonia production) is hydrogen and nitrogen. There are many similar examples; thus, the composition of the gas varies depending on the specific process being used. Raw gas and syngas can both serve as feed gas under different circumstances; as mentioned earlier, syngas is feed gas once it enters the purification stage, and raw gas is also feed gas at that point. Raw gas is sometimes translated as crude coal gas; it refers to unpurified gas. The unpurified syngas produced by a gasifier can be considered raw gas.
Just translate it to the corresponding version based on what’s written in the original text. feed gas: raw material gas (for the entire process); feed gas (for a specific unit); syngas: synthetic gas; raw gas: unpurified gas