• 45 mins UK On Track To Approve Construction of “Mini” Nuclear Reactors
  • 5 hours LNG Glut To Continue Into 2020s, IEA Says
  • 7 hours Oil Nears $52 With Record OPEC Deal Compliance
  • 10 hours Saudi Aramco CEO Affirms IPO On Track For H2 2018
  • 12 hours Canadia Ltd. Returns To Sudan For First Time Since Oil Price Crash
  • 13 hours Syrian Rebel Group Takes Over Oil Field From IS
  • 3 days PDVSA Booted From Caribbean Terminal Over Unpaid Bills
  • 3 days Russia Warns Ukraine Against Recovering Oil Off The Coast Of Crimea
  • 3 days Syrian Rebels Relinquish Control Of Major Gas Field
  • 3 days Schlumberger Warns Of Moderating Investment In North America
  • 3 days Oil Prices Set For Weekly Loss As Profit Taking Trumps Mideast Tensions
  • 3 days Energy Regulators Look To Guard Grid From Cyberattacks
  • 3 days Mexico Says OPEC Has Not Approached It For Deal Extension
  • 3 days New Video Game Targets Oil Infrastructure
  • 4 days Shell Restarts Bonny Light Exports
  • 4 days Russia’s Rosneft To Take Majority In Kurdish Oil Pipeline
  • 4 days Iraq Struggles To Replace Damaged Kirkuk Equipment As Output Falls
  • 4 days British Utility Companies Brace For Major Reforms
  • 4 days Montenegro A ‘Sweet Spot’ Of Untapped Oil, Gas In The Adriatic
  • 4 days Rosneft CEO: Rising U.S. Shale A Downside Risk To Oil Prices
  • 4 days Brazil Could Invite More Bids For Unsold Pre-Salt Oil Blocks
  • 4 days OPEC/Non-OPEC Seek Consensus On Deal Before Nov Summit
  • 4 days London Stock Exchange Boss Defends Push To Win Aramco IPO
  • 4 days Rosneft Signs $400M Deal With Kurdistan
  • 5 days Kinder Morgan Warns About Trans Mountain Delays
  • 5 days India, China, U.S., Complain Of Venezuelan Crude Oil Quality Issues
  • 5 days Kurdish Kirkuk-Ceyhan Crude Oil Flows Plunge To 225,000 Bpd
  • 5 days Russia, Saudis Team Up To Boost Fracking Tech
  • 5 days Conflicting News Spurs Doubt On Aramco IPO
  • 6 days Exxon Starts Production At New Refinery In Texas
  • 6 days Iraq Asks BP To Redevelop Kirkuk Oil Fields
  • 6 days Oil Prices Rise After U.S. API Reports Strong Crude Inventory Draw
  • 6 days Oil Gains Spur Growth In Canada’s Oil Cities
  • 6 days China To Take 5% Of Rosneft’s Output In New Deal
  • 6 days UAE Oil Giant Seeks Partnership For Possible IPO
  • 6 days Planting Trees Could Cut Emissions As Much As Quitting Oil
  • 6 days VW Fails To Secure Critical Commodity For EVs
  • 6 days Enbridge Pipeline Expansion Finally Approved
  • 7 days Iraqi Forces Seize Control Of North Oil Co Fields In Kirkuk
  • 7 days OPEC Oil Deal Compliance Falls To 86%
Alt Text

The (Only) Culprit Of Coal’s Demise

Cheap and abundant natural gas…

Alt Text

China Creates World’s Biggest Power Group With $271B In Assets

Chinese authorities approved the merger…

Darrell Delamaide

Darrell Delamaide

Darrell Delamaide is a writer, editor and journalist with more than 30 years' experience. He is the author of three books and has written for…

More Info

Flaw in CCS Theory May Puncture Clean Coal Dream, Study Says

Flaw in CCS Theory May Puncture Clean Coal Dream, Study Says

Clean coal is likely to remain a chimera rather than a real solution to carbon emissions, a new study suggests, because the much-touted process of carbon capture and sequestration simply won’t prove to be feasible.

Proponents of coal have held out CCS as the key to a future use of coal in keeping with efforts to combat global warming, but the technology remains unproven and has long faced skepticism.

In theory, carbon dioxide given off during combustion would be captured and injected in either liquid or “supercritical” state into an underground rock formation so that it would not disperse into the atmosphere.

The new study on CCS by Michael Economides of the University of Houston and Christine Ehlig-Economides of Texas A&M University says that proponents of CCS have underestimated the amount of reservoir space that will be required because the volume of carbon dioxide to be stored cannot exceed more than 1% of pore space, and perhaps much less, rather than the 1-4% in most calculations.

“This will require from 5 to 20 times more underground reservoir volume than has been envisioned by many,” the authors write, “and it renders geologic sequestration of CO2 a profoundly non-feasible option for the management of CO2 emissions.”

Michael Economides himself is a self-declared skeptic of global warming and long has argued that traditional fossil fuels must continue to provide the bulk of our energy needs.

The mistaken calculations are due to the assumption that the CO2 can be injected into a reservoir formation at a constant pressure, the authors say. But in fact, pressure will vary, affecting the rate of injection. Excessive pressure could fracture the formation, says the study, published in the Journal of Petroleum Science and Engineering.

“In applying this to a commercial power plant, the findings suggest that for a small number of wells the areal extent of the reservoir would be enormous, the size of a small U.S. state,” the authors say.

Several government-sponsored experiments in CCS are under way in various countries, including the U.S.  The New York Times reported last week on a project in Germany that has been injecting carbon into a sandstone reservoir for the past 22 months and is attempting to monitor any leakage.

By. Darrell Delamaide




Back to homepage


Leave a comment

Leave a comment




Oilprice - The No. 1 Source for Oil & Energy News