API 4645 : 1997

METHANE AND CARBON DIOXIDE EMISSION ESTIMATES FROM U.S. PETROLEUM SOURCES

American Petroleum Institute

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Section
EXECUTIVE SUMMARY
      RESULTS
      SENSITIVITY ANALYSIS
      CONCLUSIONS
1 INTRODUCTION
      PETROLEUM INDUSTRY BOUNDARY DEFINITION
2 COMPARISON OF METHODOLOGIES
      STANDARD APPROACH
      LITERATURE REVIEW
      KEY ELEMENT COMPARISON/RANKING
           Boundaries
           Detail Level
           Data Quality
           Representativeness
           Comprehensiveness
           Practicality
      CONCLUSIONS
3 1990 EMISSION ESTIMATE
      METHANE EMISSIONS
           Production
           Crude Transportation
           Refining
           Product Transport
      CARBON DIOXIDE EMISSIONS
           Production
           Crude Transportation
           Refining
           Product Transportation
4 METHODOLOGY FOR PROJECTIONS TO 2000
      METHODOLOGY FOR METHANE ACTIVITY FACTOR
      PROJECTIONS
           Production
           Crude Transportation
           Refining
           Product Transportation
           Mass Balance
      METHODOLOGY FOR CO2 ACTIVITY FACTOR PROJECTIONS
           Production
           Crude Transportation
           Refining
           Product Transportation
      METHODOLOGY FOR EMISSION FACTOR PROJECTIONS
           Oil and Gas (O&G) Production MACT
           Marine Vessel Recovery (MVR) MACT
           Refinery MACT
           Gasoline Distribution MACT
           Energy Efficiency Changes
5 EMISSIONS AT YEAR 2000
6 CONCLUSIONS
      RESULTS
      SENSITIVITY ANALYSIS
      RECOMMENDATIONS
7 REFERENCES
APPENDICES
Appendix A Supporting Figures for Section 4
Figures
1-1 Petroleum Industry Segments
1-2 Industry Boundaries
2-1 Major Flows for Emission Data Lineage
6-1 1990 CO2 Emissions
6-2 1990 Methane Emissions

Abstract

The objective of this project is to update and revise the inventory and methodology for methane (CH4) and carbon dioxide (CO2) emissions from the United States petroleum industry.