At least 40 years ago my old utility had a compressed natural gas program for city buses. Must have eventually been successful as cng for city busses is pretty widespread now. Look for the raised roof on busses to hide tanks and cng label on back. We had mined limestone caverns for propane storage to create synthetic natural gas for winter peaking. Used compress air and vaporized propane blended to a 1000btu content and injected directly into gas main. Also had a crazy program to make liquified natural gas LNG and actually had a few cars with LNG tanks in the trunk. Dangerous cause the stuff had to be stored at liquified temps and constantly boiled off. Couldn't park inside or smoke. LNG is how nat. gas is now transported world wide in tankers. As a young gas engineer I worked on both programs. Pretty exciting stuff back in the day
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Today's Featured Article - Tractor Profile: Oliver 70 Row Crop - by Staff. The Oliver 70 was part of the "Fleetline Series" and was manufacturered from 1937 to 1948. The row-crop configuration could have either dual or single front wheels. The Oliver 70 was also offered in the standard, orchard and industrial configurations. The tractors were sold in Canada. An early advertisement states "Power when you want it - power when you need it - power to help put in crops when field conditions are right and time and help are limited. That's the power you'll find in an Oliv
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