Dusseldorf Energy Company named Uniper announced last week that it sends methane from renewable hydrogen, a local natural gas pipeline
A methanisation plant in Falkengaagen, which produced synthetic methane, opened in May 2018 (PDF), and plant operators began testing the process of combining renewable hydrogen with carbon dioxide from a neighboring plant from bioethanol. ] Synthetic methane is sent to a local gas pipeline, where it is used together with traditional natural gas. "Today, the plant produces up to 1,400 cubic meters of synthetic methane (SNG) per day, which corresponds to about 14,500 kWh [kilowatt hours] of energy," said Uniper press release.
The methanization plant receives renewable hydrogen (H 2 ) from a neighboring plant that has used excessive wind and solar energy for electrolysis-based hydrogen synthesis from 2013. Store & Go, a European-funded research program that recently co-operated with CO 2 -claims the launch of Climeworks for the construction of a synthetic methane plant in Troy, Italy.
H 2 from the closest Store & Go electrolyzer with entrapped CO 2 from a neighboring bioethanol plant, uniting two molecules for methane (CH 4 ) is the main ingredient of natural gas. This process also creates heat as a by-product of a neighboring plant for facing.
The great advantage of this meta-design project is that it can use the existing natural gas infrastructure, allowing vehicles, residences and other clients indirectly to use renewable sources. energy for fuel and heat.
The problem with methane is usually a cost. Uniper did not claim how much he needed to spend on synthetic methane, but he would most likely not compete with natural gas prices, even in Europe, where natural gas is not as rich as here in the United States. In the United States, such a project of methane development, as it will undoubtedly be much more expensive than the use of traditional natural gas, at least in the absence of a policy or carbon tax.
Austria's largest electricity supplier, Verbund, announced this week that it intends to build a pilot plant for hydrogen energy next to the country's largest natural gas plant. Sunfire, a European low carbon technology firm that helps Verbund build its pilot project, said in a press release that the project will test "the partial replacement of natural gas with hydrogen in a climatically neutral way"
As Austria plans to further expand its wind and solar the country is looking for ways to store excessive periodic energy for those times when the sun does not shine and the wind does not blow. The Verbund pilot plant, called Hotflex, will use electricity to control the high-temperature electrolysis process to create gas . It is unclear whether renewable energy will be used from a particular source in this process, or if the pilot plant simply receives electricity from an increasing number of renewable sources of energy.
However, the resulting N 2 will be mixed with natural gas for the drive of two gas turbines [at the natural gas plant] in a more climate-neutral way, – wrote Sunfire.
Hydrogen-rich natural gas has been studied in recent years as a way to reduce carbon emissions associated with a heating and cooking home. In 2018, the study "Sustainable Energy and Fuel" suggested that in the United Kingdom, natural gas can be enriched up to 30% hydrogen without seriously increasing the risk of damage to the burner phenomena, which is called "flash" and "blown" . "