Definition

Noun: * The gas leaving a generator during a blow period: In industrial processes, particularly in gas manufacturing or certain chemical operations, "blow gas" refers to the gaseous byproduct or waste gas that is expelled or vented from a generator or reactor during a specific phase of its operation known as the "blow" period. This gas is typically not the primary product.

Usage Examples

• Noun:
  • The engineers monitored the composition of the blow gas to ensure the process was operating efficiently.
  • A special scrubber was installed to treat the blow gas before it was released into the atmosphere.

Advanced Usage

• The term is highly technical and specific to certain engineering or industrial chemistry contexts. It is not used in everyday language.
• The "blow period" is a controlled part of a cyclic process where the generator is purged or cleaned, often by forcing a gas (like steam or air) through it, which carries away residual products or contaminants. The resulting effluent is the "blow gas."

Variants and Related Words

• Blowdown (noun): Often used in similar contexts, particularly in steam systems or pressure vessels, to describe the fluid (which can be gas or liquid) discharged during a blowdown process for pressure reduction or cleaning.
• Off-gas (noun): A more general term for any gas that is emitted as a byproduct of an industrial process.
• Flue gas (noun): The gas exiting to the atmosphere via a flue (a pipe or channel), often from combustion processes like in a boiler or furnace.

Synonyms

• Waste gas
• Process vent gas
• Effluent gas

Notes on Meaning

• Primary Meaning: The specific, technical meaning defined above is the core and almost exclusive use of the compound noun "blow gas."
• Non-Standard Interpretation: If encountered outside a technical manual, separating the words ("blow" as a verb and "gas" as a noun) would lead to a completely different, informal, and potentially crude interpretation unrelated to the industrial term. The technical term should be considered a fixed compound.

Noun

1. the gas leaving a generator during a blow period