A chemical manufacturer in India has been asked to pay to pay $8.37 million for a fire that destroyed a Houston-based pesticides maker's warehouse and offices in Pasadena six years ago.
The fire apparently took place when Chloropyrifos drums were placed were placed in a “hot box” in the Houston company's Pasadena warehouse for melting, based on procedures provided by the manufacturer. However, during the melting process, the contaminated chemicals exploded and caught fire.It appears that the drums contained chloropyrifos contaminated with solvent.
It is quite common in pesticide manufacturing to put a drum in a steam bath or a hot box to melt the drum contents. But as this incident shows, you must understand the dangers before doing it.....
See this article for more details.
March 2, 2010
March 1, 2010
Process Safety in India -PCPIR's
To promote investment in the chemical sector and make the country an important hub for both domestic and international markets, the government is in the process of setting up Petroleum, Chemicals & Petrochemical Investment Regions (PCPIRs). As per the PCPIR policy ,this is to "attract major investment, both domestic and foreign, by providing a transparent and investment friendly policy and facility regime.These PCPIRs would reap the benefits of co-siting, networking and greater efficiency through the use of common infrastructure and support services. They would have high-class infrastructure, and provide a competitive environment conducive for setting up businesses. They would thus result in a boost to manufacturing, augmentation of exports and generation of employment".
Isn't the setting up of these PCPIR's a good opportunity for the Government to implement mandatory process safety norms in these PCPIR's?
Isn't the setting up of these PCPIR's a good opportunity for the Government to implement mandatory process safety norms in these PCPIR's?
February 28, 2010
The future of Process Safety in India
A recent news item on February 26th indicates that in the immediate future, Oil Industry Safety Directorate (OISD) is likely to be announced as the single window agency to ensure safety in the oil & gas sector and is also expected to be vested with all necessary statutory powers to fulfill its responsibilities. Several other regulatory changes and announcements that are in the pipeline and expected to be unveiled over the next few months.
What is the future of process safety in India? Do not be surprised if a Chemical Safety Board, similar to the US is set up. Do not be surprised if investigation reports of incidents are put up on the web. But for this to happen, I feel there has to be a strong impetus to the Government to bring in such changes. I am only hoping that another Bhopal is not the impetus!
While on the subject, let us visit the subject of awards and incidents. In my experience, many companies have won many safety awards but then there is a fatal accident. An award for process safety performance cannot be judged by visiting the unit for a few days. It requires commitment day in and day out from top management to really achieve top class process safety performance. I feel that an organization would be better off if it sits back and takes a good look at its performance in process safety periodically.
What is the future of process safety in India? Do not be surprised if a Chemical Safety Board, similar to the US is set up. Do not be surprised if investigation reports of incidents are put up on the web. But for this to happen, I feel there has to be a strong impetus to the Government to bring in such changes. I am only hoping that another Bhopal is not the impetus!
While on the subject, let us visit the subject of awards and incidents. In my experience, many companies have won many safety awards but then there is a fatal accident. An award for process safety performance cannot be judged by visiting the unit for a few days. It requires commitment day in and day out from top management to really achieve top class process safety performance. I feel that an organization would be better off if it sits back and takes a good look at its performance in process safety periodically.
February 26, 2010
Natural Gas Blowing of pipelines causes accident
The CSB has released a statement that mentions that the explosion at the Kleen energy plant in the US occurred during the blowing of new pipelines with natural gas to clear them of debris. There were a number of possible ignition sources.It appears that this is a "common" practice in power plants. I wonder if people are forgetting the basics: flammable gas + air + ignition source = Fire or explosion!
It is very dangerous to assume that ignition sources will not be present!
It is very dangerous to assume that ignition sources will not be present!
February 24, 2010
Monitor your Pressure Safety valves for fugitive emissions
An incident in the US highlights the need to ensure that operational checks are conducted to detect any fugitive emissions from PSV’s. It was reported that about 1.5 tonne of a toxic chemical had leaked from the PSV over a period of two weeks. The leak was finally detected when mass balances did not match. If you have PSV’s discharging to the atmosphere that are mounted on top of vessels tanks and other equipment, ensure that you implement a fugitive emission monitoring program to detect any leak from the safety valve. Many large atmospheric ammonia storage tanks have their PSV’s located on the tank top and any leakage from these valves cannot be detected from the ground level. With more and more habitation coming up near maximum accident hazard units, it becomes imperative that you implement a proactive monitoring PSV leak monitoring program.
Process safety - Do not forget the human being in your design!
Some experts predict that in the future, there will not be any control rooms, but operators and managers individually wearing hi tech equipment like personalized visual displays and control units that will be networked and will be used to control plants. Whatever the future, one thing is sure - the human is going to be around! And continue to commit the same mistakes!! Some examples of design "googlies" are given below:
1. If you install an orifice plate to restrict flow as part of your design, be sure one day it will be removed.
2. If you install an instrument on top of a vessel or equipment and expect the operator to note down the reading, be sure that the reading one day will be noted without the operator going to the top.
3. If you design a tank for full pressure and not for vacuum, when there is a chance of vacuum formation, be sure that the tank will collapse one day due to vacuum.
If you forget to think like an operator, be sure your design will fail one day!!
This also raises another point. In the future is it possible to operate a plant that does not depend on human beings? Ultimately, there will have to be a human being who is looking after that technology and he can also make mistakes!
1. If you install an orifice plate to restrict flow as part of your design, be sure one day it will be removed.
2. If you install an instrument on top of a vessel or equipment and expect the operator to note down the reading, be sure that the reading one day will be noted without the operator going to the top.
3. If you design a tank for full pressure and not for vacuum, when there is a chance of vacuum formation, be sure that the tank will collapse one day due to vacuum.
If you forget to think like an operator, be sure your design will fail one day!!
This also raises another point. In the future is it possible to operate a plant that does not depend on human beings? Ultimately, there will have to be a human being who is looking after that technology and he can also make mistakes!
February 23, 2010
Advanced instrumentation at Refinery
Please read this article
The Worlds Largest Foundation Fieldbus Project
Reliance Petroleum Limited Needed Foundation Fieldbus to Manage the Most Complex Refinery in the World
February 20, 2010
Jaipur oil depot fire - Sharing of Incident Report
Kudos to the Oil Industry Safety Directorate for posting the independent investigation committee report on the Jaipur oil depot fire. (Click MB Lall report in their website).As far as I know this is a first in India for sharing incident reports and this is a very positive change for process safety in India.
On reading the report, the following points come out:(I am quoting from the report)
1."Uncontrolled Loss of Primary Containment in the form of a jet of gasoline:Policy issues - Safety not given adequate priority".
2."It was observed that safety shut down system envisaging closure of all Motor Operated Valves (MOV) at the inlet and outlet, immediate to the tanks was provided in design and installation but had been decommissioned, a few years ago, probably after 2003, due to some operational issues. The exact timing of the above is not known to the current operating officers".
3."No External Safety Audit for last 6 years.Internal Safety Audit inadequate as it could not point out any deficiency in design or procedures & practices".
4. "The certifications such as ISO, NSC awards, Greentech awards, Ministry of Labour awards etc., are all based on documentation submitted by the organizations and not on field verifications and safety practices. The awards/recognitions mesmerize the higher management besides giving wrong signals about safety management systems leading to complacencies. It is, therefore, recommended that time and efforts be directed towards annual safety audits by involving non-company experts so as to have unbiased reports. The companies should be cautioned to be circumspect about utilizing agencies and organizations who claim to be providing expert safety advice and assessment"
I THINK THE ABOVE STATEMENTS CLEARLY INDICATE WHERE THE PROBLEMS ARE!
Update 3.7.10:
A reader called Atul has sent me this query"But how can this be a case of individual fault ? My Brother in law was attending his fathers funeral at the time of accident and could do nothing about it.
In depot fires across the globe, its the Corporation which are at fault and fined. People are given compensation. In India, the employees are put into Jail! Is this a JUSTICE system which you are proud of?"
I request Atul to read my latest post on the subject in this link
On reading the report, the following points come out:(I am quoting from the report)
1."Uncontrolled Loss of Primary Containment in the form of a jet of gasoline:Policy issues - Safety not given adequate priority".
2."It was observed that safety shut down system envisaging closure of all Motor Operated Valves (MOV) at the inlet and outlet, immediate to the tanks was provided in design and installation but had been decommissioned, a few years ago, probably after 2003, due to some operational issues. The exact timing of the above is not known to the current operating officers".
3."No External Safety Audit for last 6 years.Internal Safety Audit inadequate as it could not point out any deficiency in design or procedures & practices".
4. "The certifications such as ISO, NSC awards, Greentech awards, Ministry of Labour awards etc., are all based on documentation submitted by the organizations and not on field verifications and safety practices. The awards/recognitions mesmerize the higher management besides giving wrong signals about safety management systems leading to complacencies. It is, therefore, recommended that time and efforts be directed towards annual safety audits by involving non-company experts so as to have unbiased reports. The companies should be cautioned to be circumspect about utilizing agencies and organizations who claim to be providing expert safety advice and assessment"
I THINK THE ABOVE STATEMENTS CLEARLY INDICATE WHERE THE PROBLEMS ARE!
Update 3.7.10:
A reader called Atul has sent me this query"But how can this be a case of individual fault ? My Brother in law was attending his fathers funeral at the time of accident and could do nothing about it.
In depot fires across the globe, its the Corporation which are at fault and fined. People are given compensation. In India, the employees are put into Jail! Is this a JUSTICE system which you are proud of?"
I request Atul to read my latest post on the subject in this link
February 19, 2010
Process Safety and Asset Integrity
Maintaining asset integrity is one of the key areas of process safety. As I observe more and more competition in the Indian Chemical Industry,I am beginning to observe a lack of long term focus towards maintaining asset integrity. With current high attrition rates in the chemical industry, it is only natural that a plant manager tends to "adjust" his focus on maintaining asset integrity to ensure that nothing happens during his tenure.This is also mentioned in the investigation report of the BP Texas refinery incident.Many organizations are implementing process safety management systems without a long term approach. Such systems will bring in more complacency than doing good.Another worrying factor is the lack of competency to manage asset integrity programs. I have observed many "in house" asset integrity teams influenced by their organizational culture in such a way that they get blinded to reality.Top management feels everything is hunky dory when suddenly something fails and everybody wakes up!The UK HSE chair has said "Never allow short-term business pressures to blind you to the real and potentially devastating human and business consequences of neglecting process safety and asset integrity"
I will end with a joke - I was chairing a HAZOP study for a Bio Ethanol Plant coming up in South Africa when one of the participants jokingly asked me "Does'nt all your negative thinking affect you?". Well, Process Safety is not about negativity, but about worrying about things that are so obvious to you but not obvious to others!
I will end with a joke - I was chairing a HAZOP study for a Bio Ethanol Plant coming up in South Africa when one of the participants jokingly asked me "Does'nt all your negative thinking affect you?". Well, Process Safety is not about negativity, but about worrying about things that are so obvious to you but not obvious to others!
February 17, 2010
"Non observance of safety norms caused Jaipur oil depot fire"- investigation report
The investigation committee into the Jaipur oil depot fire has pointed out the lack of written operating procedures, absence of leak stopping devices and lack of understanding of hazards and risks as root causes of the incident. See this report for further details.
The committee also has recommended improving operating discipline. This requires a lot of commitment from top management. Operating discipline is easy to bypass in times of cost pressures. I have observed many times that incidents are caused when operating discipline is set aside even though management knows that it is being bypassed. Process Safety Audit reports should be given due weightage by management. The observations pointed out in the audit report are indicators that something is wrong and unless they are attended and root causes are found out, a big incident could occur. How many times can we be lucky?
See other opinions in this link
The committee also has recommended improving operating discipline. This requires a lot of commitment from top management. Operating discipline is easy to bypass in times of cost pressures. I have observed many times that incidents are caused when operating discipline is set aside even though management knows that it is being bypassed. Process Safety Audit reports should be given due weightage by management. The observations pointed out in the audit report are indicators that something is wrong and unless they are attended and root causes are found out, a big incident could occur. How many times can we be lucky?
See other opinions in this link
February 15, 2010
Hazards of natural gas - explosion in an US Power plant
On 7th February, an explosion was reported in a US power plant. The mayor of that place put it very nicely when he said "Something happened that should not have happened and something did not happen which should have happened".
The explosion involved natural gas. Many facilities use natural gas for power generation, heating and in furnaces. Natural gas is also a raw material for the manufacture of ammonia. Natural gas is like electricity - a bad master but a good servant. For it to be a good servant, your operators must know the hazards of inadequate purging (removal of oxygen from pipelines/vessels) before admitting natural gas.In fact the US Chemical safety Boards had just three days before the incident issued a warning about the hazards involved in natural gas purging - see this safety bulletin
See this link for a video posted on youtube about the incident.
My book details the various methods of purging of equipment and pipelines.
The explosion involved natural gas. Many facilities use natural gas for power generation, heating and in furnaces. Natural gas is also a raw material for the manufacture of ammonia. Natural gas is like electricity - a bad master but a good servant. For it to be a good servant, your operators must know the hazards of inadequate purging (removal of oxygen from pipelines/vessels) before admitting natural gas.In fact the US Chemical safety Boards had just three days before the incident issued a warning about the hazards involved in natural gas purging - see this safety bulletin
See this link for a video posted on youtube about the incident.
My book details the various methods of purging of equipment and pipelines.
Separate your shutdown system from control systems
Today,for cutting costs,many plant owners are trying to incorporate shutdown actions using the control system itself. For example, if there is a control valve that has to close when a predetermined shutdown point is reached, the instrument air to this valve is cut off using a solenoid valve and the valve is designed to "fail close".You must always keep your shutdown system independent from the control system. This is important from an emergency safe shutdown point of view. There is an interesting case study presented in this link where the shutdown system was designed to be independent from the control system. The control system valve did not close during an emergency due to a failure of a solenoid valve but the separate shutdown system acted safely.
I have investigated many process incidents where the shutdown system was connected through the control system and it failed to operate. In fact in one of the Ammonia plants in Europe a friend told me that every critical shutdown valve is provided with redundant solenoids for greater reliability. Have a relook at all your critical shutdown systems. Its better to be safe than to be sorry!
I have investigated many process incidents where the shutdown system was connected through the control system and it failed to operate. In fact in one of the Ammonia plants in Europe a friend told me that every critical shutdown valve is provided with redundant solenoids for greater reliability. Have a relook at all your critical shutdown systems. Its better to be safe than to be sorry!
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