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Archive for the ‘Silicon smelters’ Category

Iceland’s PCC silicon smelter in search of extra funds

The PCC silicon smelter at Bakki, North Iceland, is asking its owners and other investors, such as pension funds, for up to 5 billion kronur (almost $US 40 million) to provide a firmer base for its operations. The majority of the money is expected to come from the holding company of the PCC Group, PCC SE, which has an 86.5% share in the Bakki smelter. Pension funds currently have a 13.5% share in the silicon smelter. PCC SE already provided extra funds last year in the form of a shareholder loan, totalling $US 34 million.

Although PCC SE proudly states: “In the north of Iceland we have constructed one of the world’s most advanced and most environmentally compatible facilities for silicon metal production which was commissioned in 2018”, it has in fact suffered innumerable problems and has frequently, if not usually, operated at reduced capacity due to various problems.

Just this week, the first furnace had to be switched off due to a leak in the cooling system, which led to melting of part of the electrode (þrýstiklemma in Icelandic).  A new part has to be ordered. Note that the PCC website gives very little information about the plant’s problems.

Besides operating problems, the market price of silicon metal has been decreasing recently.

News of PCC’s financial problems must surely make it harder for Stakksberg to sell the former United Silicon plant in Helguvik, Southwest Iceland.

 

 

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Heavy industry in Iceland looks to CarbFix to become carbon-neutral

Iceland’s four largest CO2 emitters, three of which are aluminium smelters and the other a ferro-silicon plant, have signed a Letter of Intent with the Icelandic government to look for ways to become carbon neutral by 2040. The PCC silicon metal smelter at Bakki, which is another large emitter, is also expected to sign – “although our first priority is to get the operation running properly,” according to the environmental officer there.

The aim is to thoroughly investigate whether the CarbFix method for storing CO2 can become a viable option, both technically and financially, for storing CO2 emissions from these companies.

CarbFix was set up originally in 2007 in conjunction with the Hellisheidi geothermal power station, where CO2 is captured from steam and dissolved in water at pressure. The water is then injected into underground basalt rock at a depth of 500-800 m, where it forms carbonate minerals such as calcite within a few years. These carbonate minerals are stable on a geological time-scale.

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Annual capacity at the Hellisheidi plant is around 12,000 tonnes CO2, which accounts for about a third of the plant’s CO2 emissions. The Hellisheidi plant also removes hydrogen sulphide (H2S) from the steam, but this will not be an issue with the companies intending to become carbon-neutral by 2040.

In 2017, a pilot-scale Direct Air Capture unit was added to the system: this process is independent of location as it mostly relies on energy in the form of heat, which is available as a by-product in numerous industrial processes. Unfortunately the technique is currently too expensive to be used  for making heavy industry climate-neutral.

The project with heavy industry, which is expected to span five to ten years, will involve analysing the concentration of CO2 in emissions, so that similar removal techniques can be applied to those at Hellisheidi. The next step will involve design and manufacture of experimental equipment for capturing and injecting CO2, followed by design and manufacture of similar equipment on a larger scale.

The standard method of carbon capture and storage (CCS) involves pumping oil into old gas fields or using some form of carbon capture and usage (CCU). Edda Sif Aradóttir, who is project manager of CarbFix, says there are both advantages and disadvantages to traditional methods.

“The CarbFix method transforms CO2 into minerals within two years through a chemical process that happens naturally in nature, while traditional methods store CO2 in gas or liquid form. The procedure is thus of a completely different nature and CO2 is permanently removed,” she says.

She says that the main disadvantage is that it requires a considerable amount of water to dissolve the CO2 where chemical changes occur between water and rock. “On the other hand, the water needed by the procedure may be reused, which we in fact do up at Hellisheidi … we are working at developing the process even more so that seawater can be used,” she explained.

Funding for the CarbFix2 project has come from various programmes within the EU, including Horizon 2020, with collaborators in Toulouse, Barcelona and Zurich. CarbFix2 is designed to move the project on from a demonstration phase to one which will lead to an economically viable, complete CCS chain that can be used within Europe and globally.

Future research involves exporting the method to new injection sites in Germany, Italy and Turkey as well as Iceland, and further developing the method so it can be used offshore for permanent mineral storage of CO2 on the sub-sea floor. CarbFix proponents say that there is far more storage available in porous sub-marine basalts than required for the geologic storage of all the anthropogenic CO2 that will ever be produced.

I also wrote about this for ENDS Europe Daily today.

 

Call for Health Impact Assessment for Helguvik silicon smelter

I got a document yesterday from the Planning Agency (now available in Icelandic on the Net) because I’d made comments to a proposal for what should be covered in an environmental impact assessment concerning improvements to the closed-down silicon smelter formerly owned by United Silicon.

Besides allowing comments from the public (which they took no notice of, except to say that many residents had complained of health problems!), they’d asked for comments from bodies such as the Environment Agency, Directorate of Health, the local council, the Marine Research Institute, the Met Office and others.

Some of the information was particularly interesting. For instance, the Directorate of Health said that a Health Impact Assessment should be done because of all the complaints received from local residents. Stakksberg (the current owners) responded by saying that they were not aware of HIAs being done in Iceland, and until legislation was passed about HIAs, they were not going to do one!

When United Silicon was operating the plant, the temperature of the cooling water was 7°C and was discharged into the sea afterwards, when the temperature was not supposed to go over 10°C. Was this the case? No – the maximum recorded cooling temperature of the cooling water was 36°C! As a biologist, I was appalled by this. The draft EIA has to show how much area will be affected by the cooling water and what the temperature difference will be.

The Met Office were concerned about the aquifiers, which they said were very susceptible to disturbance in that area. They also said that there should be a scenario for when the worst possible weather conditions occur, i.e. calm weather/gentle breeze and also when there was high humidity.

They also had concerns about some of the substances emitted from the operation, some of which are bio-accumulative (or accumulate in soils) or do not change into less toxic materials. These substances include heavy metals such as arsenic, persistent organic compounds and sulphur compounds.

The Environment Agency said that because most of the odour problems occur when the smelter is not running at full capacity, a distribution model of pollutants should be done for volatile organic compounds (VOC) with different exhaust temperatures.

The EA also said that the option of not starting up the plant again should be considered.

Many other points came up too, and there were conflicting opinions from different agencies about whether a emergency chimney was needed or not.

I still suspect that the plant won’t start up again. Stakksberg announced long ago that they were trying to sell the plant, but they haven’t succeeded yet. They originally implied that they had no intention of running the plant themselves.

The document I received yesterday raised so many issues that I suspect it will take a long time to process them all.

Iceland’s silicon metal industry still having problems

PCC Bakki Silicon mentioned on their Facebook page recently that although their first furnace was operating smoothly for considerable time (which I doubt is the case), furnace no. 2 was still causing them problems. “Now”, they say, the cooling system is leaking water and they have to open the emergency chimney again. The plant is causing endless problems, like the first silicon plant at Helguvik that was eventually closed down after nine months of operation.

In response to the leak, one person – obviously a member of ASH, the group opposed to the silicon smelter in Helguvik  – commented: “Helguvik all over again.”

The Bakki smelter is supposedly using BAT,  Best Available Technology, or Best Available Techniques, which sounds reassuring but is just a bluff that doesn’t mean anything.

Engineering-related problems are not their only worries. There was another small fire this morning at the plant, in the same place as the first fire.

They are also about to get their third CEO since the plant started operation about a year ago. Ostensibly, CEO no. 2 wants to move down south again for personal reasons.

In response to a question I asked  at a public meeting last year, organized by the company Stakksberg that is currently seeing to the “refurbishment” of the Helguvik plant, the Stakksberg director, Thordur Olafur Thordarson,  admitted that he did not know about the problems that PCC was having.

Stakksberg is a daughter company of Arion Bank, set up specifically to see to the Helguvik smelter, and has been trying to sell the former United Silicon plant for many months. Originally, Arion Bank said that they had a number of prospective buyers, but they obviously haven’t succeeded yet – and with all the countless problems that PCC is having, I can’t see any company wanting to take it on.

Indeed, even though Stakksberg never intended to run the Helguvik plant themselves, their website now says:

Stakksberg owns a plant in Helguvik, which produces 99% pure silicon (Si) and has a production capacity of 23,000 tonnes per year. The silicon is used, among other things, to manufacture solar cells and computer circuits. Some 70 persons will be employed at Stakksberg’s plant in Helguvik when the plant starts its operation.

Note the use of the present tense (produces, is used) and the use of the words “Stakksberg’s plant”. The website makes no mention of trying to sell the plant. Stakksberg say they hope to start the Helguvik plant up in the last quarter of 2020.

That won’t be popular.

 

Former United Silicon smelter rears its ugly head again

At a packed residents’ meeting last night over the future of the silicon metal plant in Helguvik formerly owned by United Silicon, Thordur Thordarson from Stakksberg said, in  response to a question about whether the thought had ever occurred to them to simply dismantle the plant, “Too much money has been spent on the silicon metal smelter already. If we abandon the aim of resurrecting the plant, it would be inexcusable handling of money.”

But the local campaigning group ASH say that they don’t want it to reopen.

Stakksberg is the company set up by Arion Bank to deal with the mess left by United Silicon. They intend to sell the plant when the extensive repairs and modifications have been completed. They say that the plant should be operational by 2020.

The meeting was called at two days’ notice. In the intervening period, considerable media attention was directed at the dormant plant, and the other silicon plant designed to be adjacent to the (Stakksberg) plant. The latter plant, which would be operated by Thorsil, had virtually disappeared off the drawing board as nothing had been heard about it for about two years – until someone from the local council said that the two silicon metal smelters would rescue Helguvik harbour.

The meeting, which lasted for almost three hours, consisted of explanations by Thordarson followed by powerpoint presentations by a Verkis engineer and a consultant from Norwegian firm Multiconsult. The first EIA for the Stakksberg/United Silicon plant was ostensibly prepared by Verkis, while Multiconsult were brought in last year to advise on problems – apparently, seven silicon metal smelters operate smoothly in Norway (though, unbeknown to the Multiconsult engineer, there appear to be health problems such as silicosis afflicting the workers).

Thordarson said that the “most able specialists” were advising Stakksberg. Note that United Silicon also said they had experts on hand to deal with any problems, and look what happened there.

Two of us brought up the matter of PCC Bakki, whose silicon smelter has been beset by problems and where start-up has not been easy, to say the least. Thordarson said he was not aware of the situation there, but “must look into it”. Unbelievable!!!

Other issues were brought up during question time. If Thorsil gets to operate with four furnaces and Stakksberg with four, how will anyone know which smelter is to blame if pollution levels rise sky high? No one knew the answer.

The Multiconsult person said that routine maintenance would mean that the furnaces would be shut down sometimes. Each time a furnace is restarted, there is the risk of burning odours. Multiply that by four (or eight) and there could be constant problems. One of the additions to the plant will be an emergency smoke stack that will operate during start-up. Some people are not convinced that this will make a difference.

Outside of the meeting, ASH is preparing a group lawsuit to call for a citizen’s referendum to try and stop the plant from becoming operational again.

A scoping document (in Icelandic) for a fresh EIA has been put forward and can be seen here.

 

 

PCC silicon smelter at Bakki no better than United Silicon’s smelter at Helguvik

The Icelandic media have gradually woken up to the fact that the silicon smelter  operated by PCC at Bakki in North Iceland is little better than Iceland’s first silicon smelter at Helguvik, owned by United Silicon, which was closed down by the Environment Agency on September 1 last year after about nine months of operation. Initially, the lack of media attention indicated that everything was going to plan, when in fact this was not the case at all.

Besides having to switch the first furnace at Bakki on and off a number of times, with accompanying odour problems, when it was finally brought into operation after a delay of over four months, there was a fire at Bakki in July and ongoing problems with the start-up of the second furnace. Bogi, which apparently still hasn’t become fully functional (United Silicon were never allowed to start up a second furnace because of the problems with the first one).

Then last month there was an accident to one of the workers, when he was using a “gun” to open part of the furnace and the bullet rebound to hit him on his arm.

The trade union for the plant’s workers, Framsýn, say that staff turnover has been rapid and that many of the new workers come from Estonia. Workers are discontented and relations between management and ordinary workers are strained – probably not helped by the accident.

In mid-September the smelter’s first managing director, Hafsteinn Viktorsson, was replaced by Jokull Gunnarsson, who had previously been in charge of the plant’s production process. The media have complained that it is nigh impossible to contact Gunnarsson.

The company make light of all their problems, glossing over them with words such as “There are many things to think about when starting up a furnace…” “and “Such events can occur…”.

Just as I thought that the ongoing problems at Bakki must make it unlikely that a buyer would be found for the Helguvik smelter, it was reported that many investors had shown interest in buying the Helguvik plant. PCC still don’t have any news in English on their website or their Facebook page, so I don’t know how much the prospective buyers of the Helguvik plant know about the problems encountered by PCC with its “best available technology”.

One item of interest concerning the Helguvik plant is that Stakksberg – the company set up by Arion Bank to sell the smelter – has been working with the local Reykjanesbaer council to change the district land-use plans because two of the smelter’s buildings are too high. One would have expected that the smelter’s buildings would have been adapted to the plans….

Update, 23 October: They STILL haven’t managed to get the second furnace to work.

Update, 10 November: They seem to have got Boga working again.

Second silicon furnace begins operation at PCC Bakki

PCC Bakki Silicon started up their second furnace last night, 1 September (ironically exactly a year from when Iceland’s Environment Agency closed down United Silicon’s  silicon smelter in Helguvik, southwest Iceland). They’ve called it Boga.

PCC’s first furnace was called Birta, and suffered a number of setbacks, most of which I’ve probably blogged about, including a fire. One setback I haven’t yet mentioned happened on August 22, when a computer problem caused the emergency smokestack to open for 15 minutes or so. A lot of smoke was released, and residents of the local town complained of a burning odour that residents near the Helguvik plant would recognise at once. This is not by any means the first time this has happened, as less than a month after Birta was started, it was reported that the emergency smokestack had to be opened four or five times due to various problems, although the problems they encountered were not the ones they expected.

PCC are very keen to gloss over their technical problems and have always tried to maintain a glowing image of the factory.

That said, PCC management have said that local residents might experience a burning odour while the second furnace is being brought into use. It will be interesting to see how many problems are experienced with the second furnace.

Update: They reported on their Facebook page on Saturday that the start-up of Boga was proving more complex than expected. had been problems with the feeding system that had shorted not just the second furnace but also the first one. This had happened about a week earlier. They got the latter (Birta) going soon afterwards but decided that Boga needed more attention, not just with the material feeding system but also with the electrodes, which had broken and cracked too much. They were intending to start up Boga again later that day – with potential odours. Ho hum.

Update: They haven’t got Boga going again. On 21 September they said they realised there were a number of problems with it that needed attention and they’d report again when these were done – which hasn’t happened yet (25 September). Bogi has never reached full capacity.

Update: October 23: They STILL haven’t got Boga to work and they haven’t managed to identify the root of the problem.

Update: November 10: They seem to have got Boga working.