Virtual Air Quality Compliance Training

Allison Devine

December 15, 2020

Intro to ProMax for O&G Emission Estimates

• Introduction to ProMax®

• Tank Emissions

• Dehydrator Emissions

• Pigging and Blowdown Emissions

Overview

• Bryan Research & Engineering, LLC (BR&E)• Founded in 1974

• Corporate headquarters in Bryan, Texas

• Worldwide company

• Process simulation software package• First release in 2005

• Primarily for gas processing, refining and chemical facilities

• Great technical support and training

Introduction to ProMax

• Previously• EPA’s TANKS 4.09D

• API’s E&P Tanks

• Both now obsolete, but TANKS 4.09D may still be required

• Other options for calculating tank emissions• AP-42 Chapter 7.1: Organic Liquid Storage Tanks

• Updated November 2019; March 2020; June 2020

• TankESP• Software offered by a competitor

• ProMax

Resources for Tanks Emissions

• Working Losses• Released when tank is begin filled from headspace

Tank Emissions Types

• Breathing Losses• Build up of vapors in the tank headspace

• Expansion of gas from temperature variations

Tank Emissions Types

• Flashing Losses• Occurs with increase in temperature or decrease in pressure during

transfer from production separators into atmospheric storage tanks

Tank Emissions Types

• Tank characteristics• Horizontal or Vertical; Underground

• Tank dimensions (length and diameter)

• Tank color and paint condition

• Roof types and sizes

• Closest city

• Tank contents• Sample analysis, including temperature and pressure

• Location of the sample

• Tank throughput

Tank Inputs

ProMax Tank Examples

ProMax Tank Examples

ProMax Tank Examples

ProMax Tank Examples

ProMax Tank Examples

ProMax Tank Examples

• Software program utilizing Peng-Robinson equation of state• GRI-GLYCalcTM

• Aspen HYSYS®

• ProMax

Resources for Dehydrator Emissions

Dehydrator Emissions

• Dehydrator characteristics• Rating (MMscf/day)

• Pump type (electric/pneumatic or gas injection)

• Flash tank, send gas to reboiler, combustion device, condenser?

• Operating conditions• Gas analysis, including temperature and pressure

• Operating hours

• Glycol circulation rate (gpm)

Dehydrator Inputs

• Operating conditions• Temperature (°F)

• Pressure (psig)

• Volume of gas released (scf)

• Gas analysis

Pigging and Blowdown Inputs

Pigging and Blowdown Example

Contact Information

T: 412-249-2282 T: 979-776-5220

C: 724-672-0177 C: 480-773-9041

Email: adevine@cecinc.com Email: Z.Oremland@bre.com

Allison Devine Zach Oremland