Integrated gasification combined cycle (IGCC) air permitting: overcoming obstacles, maximizing flexibility, presented at EUEC 2010

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Courtesy of Trinity Consultants

Agenda

1.IGCC Process Overview

  • Gasification system options and process flow diagram
  • Process area and plant-wide air emissions summary

2.Gasification Block Sources

  • Emission points and operating scenarios (OS)
  • Short-term and annual emissions summary

3.Permitting and Compliance Strategies

  • Permitting considerations for startup, shutdown, gasifier rotations, and malfunctions (SSM) emissions
  • BACT, air dispersion modeling, and other permitting considerations

Air Emissions –Process Areas

  • Area 1: Air Separation Unit(s)
    • Not typically a significant source of criteria pollutant emissions, but a significant power load (thus impacting emissions per KW produced)
  • Area 2: Material Storage and Preparation
    • Fugitive (e.g., storage piles and roads) and stack (i.e., dust collector) PM/PM10/PM2.5 emissions from gasifier feedstock and by-product (waste coal, solid sulfur, slag, etc.) storage and handling activities
    • Emission points similar to coal, ash, and limestone handling at PC plants except that scope of handling system may be more complex and may involve more materials
    • Potential emissions vary widely from project to project depending on raw materials, method for receiving feedstock, and ability to store or dispose of by-products onsite

Customer comments

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