Tag Archives: Fire

Bakken Crude, Crude By Rail, Explosion, Fire, Light sweet crude, Massive increase in crude-by-rail, Oil stabilization, Public Safety, Rail inspection, Rail Safety, Train speed, Volatile gases

MINNESOTA PUBLIC RADIO: Seven things you need to know about oil-by-rail safety

Repost from Minnesota Public Radio (MPR)

7 things you need to know about oil-by-rail safety

By Emily Kaiser, Feb 26, 2015
Derailment in Mount Carbon, West Virginia
This aerial Feb. 17, 2015 file photo photo made available by the Office of the Governor of West Virginia shows a derailed train in Mount Carbon, West Virginia. Steven Wayne Rotsch | AP file

Last week’s oil train derailment in West Virginia launched a national conversation about the safety of shipping oil by rail. It’s a topic we’ve been hearing about over the past couple years, especially here in Minnesota, where Bakken oil crisscrosses the state’s rail lines in large volume.

It’s a complex topic combining federal policy with scientific questions. The Wall Street Journal’s Russell Gold has been following the issue closely and spoke to MPR News’ Tom Weber to explain what you need to know.

Here are 7 things you should know about oil transport by rail:

1. The most misunderstood part of crude oil transport by train: It’s very explosive.

“The kind of oil that’s being taken out of the ground in North Dakota and put into these tanker cars is a much lighter oil,” Gold said. “It is a very gassy oil; it has a lot of ethanes, and butanes and propanes dissolved in it. It really does explode and that’s really what’s causing the problems.”

When a set of tanker cars goes up in flames, it can cause 20-story-tall fireballs.

Footage from the West Virigina derailment last week:

2. The amount of crude oil carried by train has increased exponentially in less than a decade.

According to the American Association of Railroads, there were 9,500 rail cars carrying crude in 2008. Last year is was 400,000.

We’ve been moving small amounts of crude by rail for years, but it was one or two cars in long train, Gold said. Now we see 100 to 120 tanker cars all filled with crude oil. That’s 70,000 barrels of crude per train, he said.

3. Once the crude oil is extracted in North Dakota, it has to be transported to the country’s major refineries on the coasts.

Refineries are built to utilize the gases removed from the product. If it was stabilized near the extraction site, North Dakota would have to find a way to use or dispose of the ethane and propane gases that make the oil explosive.

4. Railroads have become “virtual pipelines” for oil.

From a Gold WSJ article:

While these virtual pipelines can be created in months, traditional pipelines have become increasingly difficult to install as environmental groups seek to block permits for new energy infrastructure.

“What we are seeing on rail is largely due to opposition to and uncertainty around building pipelines,” said Brigham McCown, who was the chief pipeline regulator under President George W. Bush . Pipelines, he adds, are far safer than trains.

5. Pipeline leaks and spills are environmental problems. Oil train derailments are public safety issues.

When you have a tank car that derails and starts losing it’s very gassy oil, it’s going to burst into fire rather than leak into waterways, Gold said.

6. If you live close to these rail lines, get in touch with local first responders.

Gold recommends checking with emergency responders nearby and ask if they are properly trained to handle a crude oil train derailment. Make sure your fire chief is in contact with the rail companies to know when major shipments come through your area. Push for decreasing train speed limits and increased track inspection.

7. Can we make the tanker cars safer? Gold gave us the latest:

MPR News Producer Brigitta Greene contributed to this report.

Bakken Crude, CPC-1232, Crude By Rail, Derailment, DOT-111, Explosion, Fire, Tank car design, Tar sands crude

Multiple train disasters: Public awareness increasing exponentially

By Roger Straw, Editor, 2/26/15
Oil train.
Oil train. Credit flickr user: Roy Luck (CC-BY-2.0)

A series of horrific train accidents over the past two weeks has opened a floodgate of media news stories, investigative reports, editorials and calls for action.  Local, state and federal first responders and emergency planners, as well as elected and appointed officials have produced an incredible amount of headlines.  As an op-ed in the Richmond Times-Dispatch put it, “Public awareness of these issues is increasing exponentially.”

That is good news for those of us who have been calling for a moratorium on dangerous crude by rail and a cutback and eventual ceasing of production of Bakken crude and Canadian tar-sands dilbit.

Here is a rough sampling of a few of the postings by media nationwide:

MONTANA PUBLIC RADIO: Rail Safety Analysis Sparks Concern Over Oil Trains
By Edward O’Brien, 2/26/15

A new analysis of train safety and recent accidents involving spilled crude oil has caught the attention of many Montanans, especially as more trains carrying oil are moving through the state.  ¶ That’s because a lot crude moves on our rail lines.  ¶ Joe Hanson is well aware of the risk presented by these crude shipments.  ¶ “I went to the door and opened it up and it was just this gray, greenish cloud floating in the street. It was really eerie because of the street lights.”  ¶ That was April 11 of 1996 when 19 Montana Rail Link freight cars derailed near Hanson’s Alberton home. Six of those cars contained hazardous chemicals including chlorine gas.  ¶ The spill killed one person and forced the evacuation of over 1,000 Alberton residents for over two weeks.  [MORE]  [AUDIO]

RICHMOND TIMES-DISPATCH: Op-Ed: Missed opportunities could prove toxic for Virginia
By Greta Bagwell and Emily Russell, February 25, 2015 10:30 pm

The headlines should be familiar to Virginians by now: “River on fire after train derailment”; “Drinking water supplies shut down to thousands after spill”; “Polluters fined for violating environmental laws.” Last week, another CSX train carrying volatile Bakken crude oil from North Dakota derailed in West Virginia. At least 15 rail cars caught fire, sending a neighborhood into evacuation mode….The train cars were state-of-the-art, designed to address safety concerns arising from the transport of a highly flammable fuel. ¶ The intended destination of this fuel? Yorktown, Va. With this train derailment, we have now had two railway accidents on the same railroad that cuts across the commonwealth…. [MORE]

BUFFALO ART VOICE WEEKLY: Buffalo’s Bomb Trains
by Michael I. Niman, 2/26/15

They span over a mile long containing up to 140 tank cars and as much as 4.5 million gallons of some of the nastiest forms of crude oil on earth, pumped from “extreme” extraction operations in North America’s new oil boomtowns. They cross rivers and transverse open plains, wilderness forest and some of the most densely populated urban areas in the country. Occasionally, with alarmingly increasing frequency, they careen off into rivers, catch fire and explode, or both. When spilled in water, their heavy oil exterminates river ecosystems. When they blow up, they release the fires of hell, with one oil train accident in 2013 wiping out most of the town of Lac-Mégantic, Quebec, killing 47 people and gutting its downtown. That’s when folks started referring to these explosive steel snakes as “Bomb Trains.”  [MORE]

 

CPC-1232, Crude By Rail, Derailment, Diluted bitumen (Dilbit), DOT-111, DOT-117, Fire, Flash point, Tar sands crude

RAILWAY AGE: Why tar sands train became a fireball – bitumen isn’t necessarily safer than Bakken

Repost from Railway Age
[Editor: Significant quote: “This blend of bitumen and petroleum-based diluents, known as “dilbit,” has a low flash point. Thus, the widespread belief that bitumen from Alberta’s northern oil sands is far safer to transport by rail than Bakken crude is, for all intents and purposes, dead wrong. This may be disruptive news for bitumen shippers, carriers, and regulators.”  – RS]

Why bitumen isn’t necessarily safer than Bakken

By  David Thomas, Contributing Editor, February 23, 2015 
Feb. 14, 2015 CN oil train derailment near Gogama, Ontario
Feb. 14, 2015 CN oil train derailment near Gogama, Ontario. CBC News/Dillon Daveikis

The chain reaction fireballs that attended the Feb. 16, 2015 derailment of a CSX unit oil train in populated West Virginia probably blinded observers to the significance of the concurrent derailment and explosions of a CN oil train in a remote and uninhabited area of northern Ontario. Most reports treated the two events as equals, given that both trains consisted of recently manufactured CPC-1232 tank cars loaded with crude oil.

CN’s Ontario conflagration is the more disturbing of the two mishaps: The railroad reported that its train was not carrying the extra-light Bakken crude that, in a series of high-energy derailments since 2013, has proved to be explosive. To the contrary, the CN train was laden with bitumen, the extra-heavy tarry substance extracted from Alberta’s oil sands. Bitumen, in its natural highly viscous form, is considered to be essentially inflammable by petrochemical experts and is rarely considered in safety evaluations of crude by rail.

So why did the bitumen ignite and explode in Ontario’s -40ºC (-40ºF) weather? The reason, based on research consulted by Railway Age, is that the diluent added to make bitumen flow into and out of tank cars makes the blended lading quite volatile.

This blend of bitumen and petroleum-based diluents, known as “dilbit,” has a low flash point. Thus, the widespread belief that bitumen from Alberta’s northern oil sands is far safer to transport by rail than Bakken crude is, for all intents and purposes, dead wrong. This may be disruptive news for bitumen shippers, carriers, and regulators.

The hope for Bakken crude is that it can be treated to remove benzene and other “light end” substances before loading, rendering it mildly flammable instead of highly explosive. The same is not true for dilbit, because the highly volatile diluents are added to the crude to make it less viscous. A safer procedure is to heat bitumen at origin before loading into a tank car and again at destination, prior to unloading. Some tank cars are equipped with internal steam coils for this purpose and are used in crude oil service, but a requirement for such heating elements is not included in the specifications proposed for a future DOT-117 tank car to replace both the DOT-111 and CPC-1232 cars now in CBR service.

According to “Properties of Dilbit and Conventional Crude Oils,” a February 2014 report by the Alberta Innovates consortium of industry, government, and university researchers, “[T]he flash point of fresh dilbit is initially lower than other oil types and is comparable to a diluent.” It says that dilbit will ignite upon exposure to an ignition source at -35ºC, compared to -9ºC for conventional light oil. The flash point of raw diluent is -35ºC or less. The flash point of undiluted bitumen is +151ºC, well above the +60ºC flammability threshold specified in current hazardous materials classification regulations.

The reason for the low flash point of dilbit is that ignitability is determined by a blend’s most volatile components, in this case, the diluent itself: “[T]he flash point is determined by the lowest-boil-point components (volatiles). Consequently, the flash point of the dilbit is governed by the 20%-30% volume diluent component . . . .”

The study defines flash point as “the temperature to which the fuel must be heated in order to produce an adequate fuel/air concentration to be ignited when exposed to an open flame. The flash point of the crude oil is used as an index of fire hazard in North America.”

Thus, flash point is the critical factor in determining whether a tank car breach will lead to its contents burning or exploding upon exposure to the pyrotechnics of a high-energy derailment.

Canada’s Transportation Safety Board can be expected to analyze the dilbit lading of CN’s Ontario accident, as it did the Bakken crude that exploded at Lac-Mégantic in 2013. TSB reported then that Bakken crude is more volatile than other varieties. Should TSB conclude that dilbit has a volatility similar to Bakken crude, as the Alberta research suggests, the hazmat classification of crude oil could be in question.

Bakken Crude, Benicia CA, BNSF Railway, CPC-1232, Derailment, DOT-111, Earthjustice, Explosion, Fire, Tank car design, Tank car retrofit, Union Pacific Railroad, Valero Benicia Refinery, Valero Crude By Rail, Valero Energy Corporation, Western States Petroleum Association (WSPA)

KQED covers rail and oil industry “show and tell” in Sacramento

Repost from KQED Science, NPR

Railroads, Big Oil Move to Ease Fears Over Crude Shipments

By Daniel Potter, KQED Science | February 24, 2015
This CPC-1232 tank car represents an upgrade over an older models criticized for being easily punctured, but critics say there's still much to be desired. (Daniel Potter/KQED)
This CPC-1232 tank car represents an upgrade over an older models criticized for being easily punctured, but critics say there’s still much to be desired. (Daniel Potter/KQED)

Facing growing apprehension among Californians, railroads and oil companies are trying to allay fears over the dangers of hauling crude oil into the state.

Tensions have been heightened by a spate of derailments, as well as a recently unearthed government report with some sobering projections for the potential cost to life and property from such incidents in coming years. Federal regulators are weighing stricter rules governing everything from modernized braking systems to new speed limits.

In a rare move Tuesday in Sacramento, officials with California’s two major railroads, Union Pacific and BNSF, held a media briefing explaining safety measures ranging from computerized stability controls to special foam for choking out fires.

At the California State Railroad Museum, Pat Brady, a hazardous materials manager for BNSF, showed off a newer model tank car with half-inch thick “head shields” – metal plates extending halfway up on either end.  The car was also equipped with “skid protection,” Brady said, pointing to a nozzle underneath that’s designed to break away in a derailment, leaving the valve itself intact, to avert spills.

This tank car, the CPC-1232, is supposed to be safer and harder to puncture than the older DOT-111 version, but it’s facing skepticism after several exploded last week when a train hauling North Dakota crude through West Virginia derailed.

Using a simulator, Union Pacific's William Boyd demonstrates technology making sure train operators don't go too fast or end up on the wrong track. (Daniel Potter/KQED)

Industry officials at the Sacramento briefing were reluctant to comment about that incident, saying not all the facts are in yet, but several emphasized the importance of keeping trains from derailing to begin with, and claiming that more than 99.99 percent of such shipments arrive safely.

Both BNSF and Union Pacific said tracks used to haul crude through California undergo daily visual inspections, said Union Pacific spokesman Aaron Hunt, as well as a battery of high-tech tests.

“We’re using lasers to measure track gauge and track profile to keep trains on tracks,” he said, and also “pushing ultrasonic waves into our rail to detect potential cracks early.”

Hunt says in a typical month, Union Pacific brings in 1,000 to 1,200 cars loaded with oil, a tiny fraction of the company’s in-state freight. BNSF said its oil haul is even less: about two trains a month. But some predict such shipments could soar in the near future.

Also represented at the briefing was Valero Energy, which is hoping to start bringing two fifty-car oil trains a day to its refinery in Benicia.

“Valero as a company has acquired over five thousand rail cars,” said Chris Howe, a health and safety manager at Valero’s Benicia facility. “We’re able to get a number of them committed to our project, so we will likely be using Valero cars of these newer designs.”

The industry’s shift away from the DOT-111 model is “a useful step,” says Patti Goldman, managing attorney with Earthjustice, who adds that the newer cars are still “not nearly safe enough.”

“What you need to do to prevent catastrophes when trains do leave the tracks is have far better tank cars to be able to prevent the leaks and explosions in the first place,” says Goldman.

Earthjustice is in a legal fight pushing for stronger oversight and regulation. Goldman charges that it’s taking a long time to fully phase out older models because the industry is more focused on growing fleets rapidly.

“That’s just inexcusable,” she says. “We don’t think they’re allowed to do that. We think they need to get these hazardous tank cars off the rails before they start increasing the amount of crude oil that’s going to be shipped on the rails.”