As they rose ever higher, methane gas condensed into methane ice, causing the clouds to glow.
High-purity methane gas (>99.999%, Takachiho Chemical Industrial, Tokyo, Japan) was used as a reaction gas for negative chemical ionization (NCI) mode.
The general features of high-temperature methane gas phase chemistry, even in the absence of any catalyst surface, are well-known.
It has been found to be leaking high levels of methane gas, produced by the rotting garbage beneath it.
One military search team was sent deep into the woods today to investigate when their sensor equipment picked up a high level of methane gas.
SARDINATA, Colombia, Feb. 4 (AP) — Crews battling dangerously high levels of methane gas have recovered the bodies of 30 coal miners killed in an explosion in northeast Colombia, an official said Sunday.
But construction of the course, which was scheduled to open in 2001, was plagued by problems, including the discovery of toxic substances in the soil, including high levels of methane gas from rotting garbage beneath the site.
Before stubbornly high levels of methane gas drove them back Thursday, rescuers had come within 500 feet of where the bodies of one group of miners may lie, with the authorities hoping that they would be able to restart the search Thursday night.
Due to the high levels of methane gas produced in coal mines, the South African Department of Minerals and Energy Affairs requires the abandoned areas of a mine to be blocked off from the working parts of the mine to prevent methane exchange and/or to contain any possible coal dust explosions.
The plant will be the first in the UK to use Induced Blanket Reactor (IBR) technology, a system developed at Utah State University that is designed to digest larger organic particles, with a faster throughput and a higher output of methane gas.
