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- 1. ADNOC H2S Level 2 Training
- 2. SLIDE No. 2 OF 100 Company Introduction Velosi Training Institute LLC is a subsidiary of Velosi Asset Integrity Limited, which offers a comprehensive range of specialized courses in Certified Technical Training, Exam Preparatory, HSE, Training in Oil and Gas Field, ISO, NEBOSH, IOSH, Food Safety courses, Administrative & Business related trainings, Corporate and Postgraduate Qualifications.
- 3. SLIDE No. 3 OF 100 Velosi Asset Integrity Limited Velosi Group was founded in 1982 in Malaysia Velosi Asset Integrity Limited was founded in the UK in 2007 as part of the Velosi Group of Companies. We operate globally through our associate offices in Middle-East, Africa and Asia. Our corporate office is in UK and Head office in UAE (Abu Dhabi). We have associated offices in more than 38 countries worldwide. A leading international consulting firm, currently enjoying the fastest growth rate amongst our competitors.
- 4. SLIDE No. 4 OF 100 Worldwide Existence of Velosi
- 5. SLIDE No. 5 OF 100 Training Categories From Certified Technical training to Post-Graduate Qualification, our training categories let you quickly select your chosen course and ensure you remain at the forefront of developments throughout various industries. Our training program is divided into the following categories: 1. Certified Technical Training 2. Exam Preparatory Training 3. HSE Training 4. Training in Oil and Gas Field 5. ISO Trainings 6. Mechanical Training 6. NEBOSH Training 7. IOSH Training 8. Administrative and Business Related Trainings 9. Food Safety Training 10. ADNOC Approved Training
- 6. SLIDE No. 6 OF 100 Course Timings: 09:00 - 10:30 : First Session 10:30 - 11:00 : Break 11:00 - 12:00 : Second Session 12:00 - 01:00 : Prayer and Break 01:00 - 03:00 : Last Session
- 7. SLIDE No. 7 OF 100 Participants Introduction Please introduce yourself to the group: 1. Your name & Country Location 2. Your job title and who you work for? 3. How many years of experience? 4. What are your expectations from this course? 5. What are you want to know from this course?
- 8. SLIDE No. 8 OF 100 COURSE OUTLINE What is Hydrogen Sulfide (H2S)? Where do you find H2S? Properties of H2S Detection of H2S Protection against H2S hazards How does H2S affect individuals? Emergency Response and Rescue Procedures Safety Measures Proper donning, doffing, and storage of SCBA
- 9. SLIDE No. 9 OF 100 Check safety controls confined space driving, energy isolation hot work line of fire safe mechanical lifting PTWand working at height. What are the exposure limits for H2S ADNOC? General Industry Ceiling Limit: 20 ppm. General Industry Peak Limit: 50 ppm (up to 10 minutes if no other exposure during shift) Construction 8- hour Limit: 10 ppm.25 Mar 2017 ADNOC Regulatory Requirement
- 10. SLIDE No. 10 OF 100 10 Life-Saving Rules ADNOC LSR At ADNOC, the lives of our employees and contractors are paramount to our optimal business performance. We have developed robust policies to address both personal and process safety challenges. We have increased accountability in our workplace while recognizing safe and good behavior across our operations. We have embedded a safety culture into our everyday lives by launching ten Life-Saving Rules that keep our employees and contractors safe. These principles are based on international best practices and help prevent injuries, protect the lives of our employees, and safeguard damage to our assets. 10 Life-Saving Rules •Work with a valid permit when required - Obtain authorization before entering a confined space •Verify isolation and zero energy before work begins •Obtain authorization before overriding or disabling safety controls •Protect yourself against a fall when working at height •Plan lifting operations and control the area Follow the rules for working in toxic gas environments •Follow safe driving rules •Keep yourself and others out of the line of fire •Control flammables and ignition sources
- 11. SLIDE No. 11 OF 100 How many people have died from H2S gas? Hydrogen sulfide is one of the leading causes of workplace gas inhalation deaths in the United States. According to the Bureau of Labor Statistics (BLS), hydrogen sulfide caused 46 worker deaths between 2011 and 2017. Why is hydrogen sulfide so deadly? It is highly flammable and toxic, even at low concentrations. Abu Dhabi: Feb 23, 2023 Two men died from asphyxiation at an industrial company, causing the Abu Dhabi Court of Misdemeanour to convict the defendant of causing the deaths by not providing the necessary safety equipment. A third worker was injured in the accident and the company will pay Dh10,000 in addition to the Dh400,000 per worker in blood money. Thu 5 Feb 2009 Toxic gas killed Shah oilfield workers – report Global consultancy Wood Mackenzie estimates fields’ output at around 50,000 bpd. Three workers who died during an accident at a UAE oilfield were killed by exposure to toxic gas emitted from crude oil, the country’s state news agency said on Thursday. An investigation has begun into how the workers came to be exposed to the deadly toxic hydrogen sulphide gas, the agency said. NEWS/ DATA - H2S Death
- 12. SLIDE No. 12 OF 100 What is Hydrogen Sulfide (H2S)? A colorless (transparent) gas that is heavier than air and tends to accumulate in low-lying areas Consists of 2 Hydrogen atoms and 1 Sulphur atom Has an offensive odor similar to rotten eggs at low concentration, at higher concentrations it rapidly deadens the sense of smell A poisonous gas that can paralyze the breathing system and can kill in minutes Highly toxic and very corrosive to certain metals and elastomers Belongs to the inorganic Sulfide family
- 13. SLIDE No. 13 OF 100 . As a pure chemical species, the discovery of H2S (1775) is credited to Swedish-German chemist Carl Wilhelm Scheele (1742-1786), who produced it through the reaction of acid with metal (poly)sulfides or by heating sulfur in hydrogen gas. History- H2S Hydrogen sulfide What is hydrogen sulfide old name? Sulfane Hydrogen sulfide is also known as sulfane, sulfur hydride, sour gas, sulfurated hydrogen, hydrosulfuric acid, sewer gas and stink damp. International Union of Pure and Applied Chemistry - IUPAC accepts the names "hydrogen sulfide" and "sulfane". When people speak of more complicated compounds they always use the term "sulfane".
- 14. SLIDE No. 14 OF 100 Hydrogen sulfide is a gas that naturally occurs in the environment in crude petroleum, natural gas, volcanic gases and hot springs. It can also be produced from bacterial breakdown of organic matter. It is flammable, colorless and noticeable by its rotten egg odor. Where does H2S gas come from? What kills hydrogen sulfide? Continuous Chlorination and Filtration Oxidation is the most common form of treatment used to eliminate hydrogen sulfide.
- 15. SLIDE No. 15 OF 100 Hydrogen sulfide is used primarily to produce sulfuric acid and sulfur. It is also used to create a variety of inorganic sulfides used to create pesticides, leather, dyes, and pharmaceuticals. Hydrogen sulfide is used to produce heavy water for nuclear power plants (like CANDU reactors specifically). What is the importance of H2S gas? What are the benefits of H2S gas? The idea at the center of all these studies is that hydrogen sulfide reduces the effects of oxidative stress on cells. ... Here's what the research suggests the compound may be able to do in humans: •Lower blood pressure. ... •Treat heart attack and stroke. ... •Improve kidney health. ... •Protect your brain.
- 16. SLIDE No. 16 OF 100 Can hydrogen sulfide cause death? According to the National Institute for Occupational Safety and Health (NIOSH), H2S environmental concentrations of 100 ppm are immediately dangerous to life or health, concentrations greater than 500 ppm can cause a person to collapse within five minutes, and concentrations exceeding 700 ppm can cause immediate ... Can you smell H2S at high concentrations? Exposure to very high concentrations can quickly lead to death. Odor threshold (when rotten egg smell is first noticeable to some). Odor becomes more offensive at 3-5 ppm. Above 30 ppm, odor described as sweet or sickeningly sweet. At what concentration is H2S toxic? According to the National Institute for Occupational Safety and Health (NIOSH), H2S environmental concentrations of 100 ppm are immediately dangerous to life or health, concentrations greater than 500 ppm can cause a person to collapse within five minutes, and concentrations exceeding 700 ppm can cause immediate Why does H2S odor fade at higher concentrations? At concentrations above 100 ppm, detection ability is affected by rapid temporary paralysis of the olfactory nerves, resulting in loss of the sense of smell. H2S is a chemical asphyxiant and mitochondrial poison.
- 17. SLIDE No. 17 OF 100 Why is H2S difficult to detect at concentrations above 100 150? If exposure is prolonged, pulmonary edema may result. As concentrations approach 100 ppm, the odor becomes imperceptible because of olfactory fatigue. At a concentration of 150 ppm, the olfactory nerve is paralyzed. At higher concentrations of 200 to 300 ppm, hydrogen sulfide can be immediately life threatening. What eats hydrogen sulfide? In soil, hydrogen sulfide will be consumed by bacteria and changed to sulfur. How do you separate H2S from water? Since hydrogen sulfide occurs as a gas in water, it can be physically removed by injecting air into the water and allowing the gas to escape. Aeration units may work by cascading, bubbling, or stripping the gas from the water. Aeration may be advantageous because it does not add chemicals to the water.
- 18. SLIDE No. 18 OF 100 What are the methods of removing H2S? Hydrogen sulphide removal techniques •iron sponge, •iron oxide pellets, •activated carbon, •water scrubbing, •Na OH scrubbing, •biological removal on a filter bed, How do you remove H2S? Removal of Hydrogen Sulfide and Sulfate | UGA Cooperative ... Because hydrogen sulfide gas escapes rapidly from water to cause an odor, it may also be removed from the water by aeration. The process includes bubbling air through the water tank, then separating or "stripping" the hydrogen sulfide in the air by venting it to the outdoors.
- 19. SLIDE No. 19 OF 100 Other names referred to H2S: H2S Stink Damp Rotten-Egg Gas Sulphurated Hydrogen Hydrosulphuric Acid Sour Crude / Sour Gas Swamp Gas Sewer Gas Dihydrogen Sulfide Hepatic Gas Zwavelwaterstoff Hydrogen Sulfide
- 20. SLIDE No. 20 OF 100 H2S SAFETY TRAINING What are the 9 industry life-saving rules? Life saving rules in the spotlight to improve safety in North Sea The nine rules are: bypassing safety controls, confined space, driving, energy isolation, hot work, line of fire, safe mechanical lifting, work authorisation and working at height.
- 21. SLIDE No. 21 OF 100 Concentration Physiological Effects 0.005 - 0.13ppm Minimal perceptible odor 5ppm Easily detectable, moderate odor TWA 10ppm Beginning eye irritation 27ppm Strong unpleasant odor, but not intolerable 100ppm Coughing, eye irritation, loss of sense of smell after 2-5mins (IDLH) 200 – 300ppm Marked conjunctivitis and respiratory tract irritation after 1hr of exposure 500 – 700ppm Loss of consciousness and possible death in 30 minutes 700 – 1000ppm Rapid unconsciousness, cessation of respiration and death 1000 – 2000ppm Unconsciousness at once, with early cessation of respiration and death in a few minutes.
- 22. SLIDE No. 22 OF 100 •9 ppm (parts-per-million) is the maximum indoor safe carbon monoxide level over 8 hours •200 ppm or greater will cause physical symptoms and is fatal in hours •800 ppm of CO or greater in the air is fatal within minutes Carbon Monoxide These parties all agreed to CO2 exposure limits in the workplace by NIOSH and OSHA: •Short Term Exposure Limit (STEL): 30,000 ppm for 15 minutes •Long Term Exposure Limit (TWA): 5,000 ppm average over 8 hours Other areas to be aware of in terms of CO2 exposure include: •Skin Contact - Liquefied CO2 or Dry Ice, can quickly burn and irritate the skin once contact is made. For safety, gently remove any clothing that may restrict circulation, loosely cover the affected areas with a sterile cloth and immediately call a poison center or doctor. •Eye Contact - When coming into contact with Liquefied CO2 or Dry Ice, immediately flush eyes with lukewarm water and cover both eyes with a sterile cloth. Treatment is urgently required.
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