Posts tagged “fuel use”
Kirk’s recent thoughts on how to address household air pollution crystallized in a piece published this week in Energy Policy.
It’s a very clear framing of a complex problem, split into to two related thoughts: (1) We can make the ‘available’ (biomass) clean, by improving combustion efficiency and driving down emissions and/or (2) we can make the clean (gas and electric cooking) available. Number (1) above requires proof that we can make a stove that performs well in the field, not just in the lab, and will be used by consumers. To be seen. The second approach, though, looks to pull policy levers to make proven clean technologies available. A parallel is drawn to other health interventions, like vaccines:
The health sector does not rely on NGOs and local community groups to develop vaccines and anti-retroviral drugs, but works to develop the best and most effective possible interventions using modern technology. Then, by negotiating price reductions, royalty flexibility, and pre- purchase agreements, it works to bring down the price. In parallel, it works to put into place the local supply chains to bring these effective interventions to poor populations, which has important roles for NGOs and community groups. It however does not promote different vaccines for the poor and the rich— health is for all.
The NYT reports on a growing pile of coke, a byproduct of refining, in Detroit. In this case, the coke is produced as a result of tar sands refining; due to its high sulfur and carbon content, it is largely useless in the developed world. It seems that Koch brothers, who have purchased the coke from tar sands operations in Alberta, plan to sell it abroad.
Coke, which is mainly carbon, is an essential ingredient in steelmaking as well as producing the electrical anodes used to make aluminum.
While there is high demand from both those industries, the small grains and high sulfur content of this petroleum coke make it largely unusable for those purposes, said Kerry Satterthwaite, a petroleum coke analyst at Roskill Information Services, a commodities analysis company based in London.
“It is worse than a byproduct,” Ms. Satterthwaite said.”It’s a waste byproduct that is costly and inconvenient to store, but effectively costs nothing to produce.”
Murray Gray, the scientific director for the Center for Oil Sands Innovation at the University of Alberta, said that about two years ago, Alberta backed away from plans to use the petroleum coke as a fuel source, partly over concerns about greenhouse-gas emissions. Some of it is burned there, however, to power coking plants.
From EIA’s interesting today in energy series:
Figure based on available EIA data
Coal consumption in China grew more than 9% in 2011, continuing its upward trend for the 12th consecutive year, according to newly released international data. China’s coal use grew by 325 million tons in 2011, accounting for 87% of the 374 million ton global increase in coal use. Of the 2.9 billion tons of global coal demand growth since 2000, China accounted for 2.3 billion tons (82%). China now accounts for 47% of global coal consumption—almost as much as the entire rest of the world combined.
Robust coal demand growth in China is the result of a more than 200% increase in Chinese electric generation since 2000, fueled primarily by coal. China’s coal demand growth averaged 9% per year from 2000 to 2010, more than double the global growth rate of 4% and significantly higher than global growth excluding China, which averaged only 1%.