Introducing Renewable B​iogas into the Natural Gas Delivery Infrastructure

In 2007, GTI joined an industry-wide effort to establish renewable gas as a fungible zero-carbon product. An initiative launched by GTI has established parameters for evaluating the suitability of biomethane products—derived from dairy waste and landfills—for safe and proper introduction into existing natural gas pipelines and to assure compatibility with existing supplies.

Since then, GTI research projects sponsored by the natural gas industry and the U.S. Department of Transportation (DOT) have been adding to our industry's understanding of the chemical and biological composition of renewable gas derived from a wide range of sources, including dairy waste, landfill, and wastewater treatment sludge.

Guidance Document for the Introduction of Landfill-Derived Renewable Gas into Natural Gas Pipelines

In 2012, the GTI team developed a Landfill Guidance Document, providing analytical and other key information to pipeline companies and natural gas local distribution companies (LDCs) so that parameters specific to clean biomethane derived from landfill biomass can be identified to support a productive discussion between the biomethane supplier and the gas utility company.

The Guidance Document includes a list of constituents and methodology for testing, as well as statistical analysis of the acquired data. The Document provides data for the development of contracts for landfill-derived renewable gas, specific instrumentation for identifying and monitoring trace constituents, and cleanup technologies for removing them.

Guidance Document for the Introduction of Landfill-Derived Renewable Gas into Natural Gas Pipelines - Final Report

Guidance Document - Appendix

Pipeline Quality Biomethane: North American Guidance Document for Interchangeability of Dairy Waste Derived Biomethane

In 2009, under the sponsorship of a consortium of gas companies, including Operations Technology Development (OTD)—and working with a number of universities and dairy farms in the Northwest, Midwest, and Western U.S.—GTI scientists developed the first national biogas guidance document for introducing methane from dairy waste into existing pipelines.

This effort, GTI project number 20614, provides guidance needed for the introduction of biomethane from dairy waste into existing pipelines. To support this effort, three areas of focus have been captured, with independent reports:

  • Executive Summary and Acknowledgments – (GTI-09/0011)
  • Task 1 Final Report: Technology Investigation, Assessment, and Analysis – (GTI-09/0012)
  • Task 2 Final Report: Laboratory Testing and Analysis – (GTI-09/0013)
  • Task 3 Final Report: Guidance Document for Introduction of Dairy Waste Biomethane – (GTI-09/0014)
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