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Call to Action for a Truly Sustainable Renewable Future
August 8, 2013 – 5:07 pm | No Comment

-Include high octane/high ethanol Regular Grade fuel in EPA Tier 3 regulations.
-Use a dedicated, self-reducing non-renewable carbon user fee to fund renewable energy R&D.
-Start an Apollo-type program to bring New Ideas to sustainable biofuel and …

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Home » Biofuels Engine Design, BioRefineries, Business News/Analysis, California, Feedstocks, Idaho, Infrastructure, Marketing/Markets and Sales, Methane/Biogas, Opinions, Policy, Sustainability

What Is Renewable Natural Gas?

Submitted by on December 4, 2017 – 2:44 pmNo Comment

(RNG Coalition)  Renewable Natural Gas (‘RNG’) is an ultra-clean and ultra low-carbon natural gas alternative. As organic waste breaks down it emits methane gas, called biogas, that can be processed to meet natural gas pipeline quality specifications. Biogas is a mixture of carbon dioxide and hydrocarbons, primarily methane gas, from the biological decomposition of organic materials.

RNG is sometimes referred to as ‘biomethane,’ a related term. Biomethane is biogas-derived, high-BTU gas that is predominantly methane after the biogas is upgraded to remove most of the contaminants and majority of the carbon dioxide and nitrogen found in biogas.

Renewable natural gas is biomethane that is upgraded to natural gas pipeline quality standards such that it may blend with, or substitute for, geologic natural gas.

Natural gas is what emits from organic matter as it decomposes. We use natural gas in our stoves and ovens, for our hot water heater, and more recently to fuel and power CNG and LNG vehicles.   READ MORE

Renewable gas: the hot new fuel from animal waste? (GreenBiz)

RNG Coalition celebrates new projects, launches video (Biomass Magazine)

 

Excerpts from GreenBiz:  UPS said it has signed agreements buy 11.5 million gallons a year of renewable natural gas (RNG) through 2024, from Big Ox Energy and AMP Energy. The fuel, shipped in gas form through ordinary natural gas pipelines, will be used to fuel UPS trucks that travel the longest distances, 600 miles per route or longer, and that already are equipped with engines that run on compressed natural gas (CNG).

To be sure, new RNG plants often face opposition from residents over concerns about the safety of anaerobic digesters, increased traffic from trucks, odors and noise.

For example, local opposition to a planned biogas plant in a rural area near Boise, Idaho, prompted the Canyon County Planning and Zoning Commission to reject the project. But the developer, Treasure Valley Renewables, appealed that decision and the county Commission approved the plant this past June. The plant will convert sorghum waste, manure and other agricultural byproducts into biofuel.

The revenue from selling RINS or Low Carbon Fuel Standard credits helped convince the Los Angeles Metropolitan Transportation Authority decided to try out RNG on its existing natural gas-fueled buses, to take advantage of low prices for RNG compared to conventional natural gas.

“Due to state and federal clean fuels programs, RNG is delivered to Metro at a slight discount compared to traditional natural gas,” agency spokesman Rick Jager said.

The public transit agency is buying RNG from Clean Energy Fuels Corp. to fuel 10 percent of its fleet, about 200 buses, for a year, through August. If all goes well, the agency may decide to extend the program for four more years and use RNG for all 2,200 of its buses that run on gas.  READ MORE

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