Amine Unit Air Emissions Model and User’s Guide, AMINECalc Version 1.0 AMINECalc is a user - friendly Windows® - based software program that estimates hydrocarbon emissions from amine - based sour gas and natural gas liquid sweetening units. The outpu t generated by the software can be used for regulatory reporting by unit operators according to the requirements of the Clean Air Act Amendments of 1990. AMINECalc performs three types of calculation options: (1) mass bal ance calculation, (2) gas process (gas feed) simulation, and (3) NGL proc ess (liquid feed) simulation. Mass emission rates of hazardous air pollut ants, including benzene, toluene, ethylbenzene, and xylenes (BTEX), an d volatile organic compounds can be estimated with the use of AMINECalc. System requirements for running AMINECalc Version 1.0 are IBM PC 486 compatible or higher, 8 MB RAM or more, and Windows® 95/98/NT. Approximately 2 MB of hard disk space are required to hold the program and its su pporting run - time libraries. For better interface viewing, it is recommended t hat the user set the monitor to a high color 16 bit (or higher) resolution. See also Publ 4680