In an earlier post, we discuss how there are two categories for natural gas odorizers, vaporization or odorant injection style. In Wick-Type Odorizer and Bypass Odorizers | Vaporization Type, we share that vaporization style odorizers have limited applications, specifically low-flow, and constant flow where there is little variation in gas flow. Here we discuss the injection style odorizers.
Chemical Injection Odorization Systems
Today, chemical injection systems are used for transmission pipelines, most large cities, many medium size loads and even some small loads in particular applications. The injection may be performed using either a pump or a drip method that injects a known volume of odorant into the gas pipeline. By adding small amounts of liquid odorant into moving gas, the gas becomes odorized. In this style of odorizer, a computer controller monitors the flow which in turn will vary the injection rate.
There are three odorant injection technologies worthy of mention: Continue reading