Fossil fuels: oil, gas, coal, nuclear (fission and fusion)Coal gas, new energy source?

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Ahmed
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Unread Messageby Ahmed » 11/07/15, 12:00

The different techniques available actually depend on the nature of the deposit ...
the CO2 will not pollute water bodies
And besides, it's sparkling water! 8)

Never forget that the energy production, even the most virtuous as possible, never used only for purposes unchanged and potentially destructive. Focus on ways lost consciousness purposes or means or implied membership, which is near a resignation for those purposes ...
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chatelot16
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Unread Messageby chatelot16 » 14/07/15, 19:43

and alcohol in the water is that it can bring out the methane from the rock?

it would not pollute it would make ferruginous water kind of bourvil!

the method has already been Experienced when there was a fire at the factory Pernod pontarlier ... all stock has escaped into the Doubs ... the days of the source of the rents felt Pernod ... this is how we understand the praise was a resurgence of the Doubs
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moinsdewatt
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Re: Coal gas, new energy source?

Unread Messageby moinsdewatt » 12/03/16, 14:00

Lorraine could provide coal gas

PASCAL AMBROSI / CORRESPONDENT | Les Echos 06 / 03 / 2016

The French Energy will raise € 70 million for a first operation by the end 2017. She wishes to enter into distribution agreements with regional partners.


Coal gas, said the "gas explosion" was the obsession of minors. It could ultimately reduce the energy trade balance of France, by substituting the imported natural gas. The French Society of Energy in Forbach (Moselle), a research office of twenty employees, preparing to exploit the 2017 end, a first gas sensing platform from the basement former Moselle coalfield in Longeville-lès-Saint-Avold. 2015 end, the Company obtained the prefecture of Moselle permission to do exploratory drilling. A fundraiser, up to 70 million, will be launched for this purpose. "We are looking for investors able to accompany us in the long term, because we are committed to long-term investments. The operating life of the Lorraine gas field will be about twenty-five to thirty years, "said Julien Moulin, Chairman of the company, supported by a first family shareholder and French institutional investors and European already committed 40 million in research groundwater houille.Issue gas of the Australian group European gas Limited, now in Lorraine since 2009, French Energy is based on geological data from the old operating mines Charbonnages de France to evaluate gas reserves found in coal seams. Verified by the French Petroleum Institute, these would be in the order of 400 billion cubic meters, accounting for nearly ten years of domestic consumption.

A noninvasive technique

To start the production of this gas composed almost 96% methane, the company asked the prefect of the Moselle operating license. Confident, the president argued that gas production will be done by a non-invasive technique. "We will use the natural cracks of coal to pump gas by simple pressure differential," he says, noting in passing that hydraulic fracturing, highly controversial, is prohibited in France since 2011. Julien Moulin is also based on a study published in early February by the Institut für Energie und Umweltforschung (Ifeu), German reference laboratory in research dedicated to energy and the environment based in Heidelberg. The results reveal that this high quality energy and 100% French emits on average far less greenhouse gas than other conventional sources. Especially as the proximity of many regional consumers, including industrial, limit transportation costs and the final price. Another promise, the project would generate the creation of jobs 300 medium term. The local population, she is concerned about the risks associated with the use of chemicals. In late November, a protection of the local environment Association (Apel) was created to oppose the commissioning of six wells in the municipality of Longeville-lès-Saint-Avold and much to Zimming. "A meeting in mid-March, is organized by the prefect with the company and representatives of the municipalities and other associations," explains Hervé-Cyril Losson member call. The association also claims the vote against - purely advisory - municipal councils concerned. Eventually, French Energy covets the exploitation of coal gas in Saarland and Wallonia.


http://www.lesechos.fr/pme-regions/actu ... 204930.php
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moinsdewatt
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Unread Messageby moinsdewatt » 25/02/17, 13:59

Française de l'Energie extracts coal gas with an unprecedented process

PASCAL AMBROSI The 07 / 02 / 2017

Image

Located near Lachambre, near Saint-Avold, Moselle, the derrick erected in December by the French Energy Company does not go unnoticed. Until spring, it drills the basement in search of coal gas trapped between 1.000 and 1.500 meters deep, in coal seams that have never been exploited. It has just reached a first of 8 meters thick at 1.103 meters. "We are using a technology that is still unused in Western Europe," says Ronan Séguier, Ph.D. in Geology. Here, there is no hydraulic fracturing - which is forbidden in France - and neither water nor injected chemicals, such as for the exploitation of shale gas. "The gas is extracted by pressure differential, using the natural cracks of coal," he said. Concretely, it is a question of pumping the water present in the coal seams by a drain, then sent to treatment stations. This operation releases the layer gas which, returned to the surface by a second drain, can be directly injected into the distribution networks. It is a gas composed of 96% of methane against 93% for the imported gas. The stakes are high because the basement of the Moselle coal basin represents the equivalent of six years of gas consumption in France. The company hopes to commission several wells in the coming years, generating production of more than 700 million cubic meters over twelve years. To expand their production area, these wells will use an innovative star-shaped technique. "Set up for the purpose of" zero rejection ", it is a first in France on a drilling site," insists Laurence Franke, spokesman for the company. To avoid the risk of groundwater pollution, drilling is carried out using the triple formwork method in steel and concrete.


http://www.lesechos.fr/pme-regions/inno ... 063112.php
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moinsdewatt
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Re: Coal gas, new energy source?

Unread Messageby moinsdewatt » 12/01/19, 22:29

How the city of Bethune will heat mine gas

Rémi Amalvy Factory New the 03 / 01 / 2019

A true pioneer in this field, Bethune (Pas-de-Calais) will recycle the infamous mine gas to supply its urban heat network. An operation that should allow him to make significant savings, in a city where 28% of the population lives below the poverty line.

This is a first in the genre and a small revolution in the world of energy. The city of Bethune (Pas-de-Calais) will recycle the mine gas to supply its urban heat network, reports Libération. Although the extraction of coal from the mining basin was stopped in 1990, the notorious firedamp, responsible for deadly explosions and great pollutant, is still present in the basements.

Following the expiry of the old and expensive network operating contract, a new call for tenders has been launched. It is the company Dalkia, with its original proposal, which has been retained. The mine gas will be used to create heat and electricity. Its use will be coupled with the heat generated by the city's waste incinerator to limit the use of natural gas.

76% green energy from 2021

Result: a district heating powered by green energies to 76% from 2021, and 88% to 2030. In addition, as recovery energy, firedamp is only taxed at 5% instead of the usual 20%. What to spend the cost of megawatt / hour, according to the mayor of Bethune - which 28% of the population lives below the poverty line - quoted by Libération, 100 65 euros (300 euros savings per year), and the network of one of the most expensive to one of the cheapest in France.

Added to this is an extension of the network, to cover 6 800 homes instead of the current 3 700. A capacity that should allow to serve public facilities, such as the hospital, and save money to reduce the rates of some public services, such as recreation centers, according to the town hall. A reflection is underway to extend the device to individual homes.

The contract was validated in July 2017

The story is not new. The contract was validated by the city of Bethune in July 2017, as told by La Voix du Nord. To route the gas, different jobs take place. Pipes are being built to carry mine gas between the Divion pumping station and the Mont-Liébaut district, where a new boiler room will be built. The costs, estimated at 11,8 million, are borne by Dalkia.

https://www.usinenouvelle.com/article/c ... ne.N788574
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