A priority among modern gas and oil production and transportation companies is to recover and capture hydrocarbon vapors. They aim to decrease emissions of ecologically harmful volatile organic compounds (VOC) with a vapor recovery system.
There are even those who require facilities to do this measure during crude oil operations. This means that they’d have to employ their own concession to operate. These facilities typically utilize recovery efficiencies instead of mass-based emission rates. They have to define crude oil emission requirements because of the intricacies of crude oil compositions.
The Development Process
It is critical that your company has an understanding of the product you’re handling to properly design an efficient vapor recovery system. You can determine this through a product assessment and identification of the overall structure of the product you’re handling. This will enable the VRU system designer to precisely control the VOC concentrations, the succeeding emissions from the system and the vapor composition.
Ignoring operating parameters of broadly varying products, like naphtha, crude oil, and condensate, will most probably lead to a flawed VRU design.
The Various Approaches
To better understand this, it is best to tackle the approach some facilities use to address this matter. For instance, their crude oil vapor recovery system requires it to recover vapors from four diverse crude oil tankers. These have extensive-ranging vapor pressures and compositions, which the system can manage easily. They designed it to retrieve vapors from every crude oil loaded at their terminal. The problem is, for every crude oil they load, they would need to apply a different recovery efficiency guarantee that reflects on the various compositions.
Feel free to use the above approach when designing your own crude oil vapor recovery system. Ensure that you consider all the possibilities to avoid probable flaws in the system.