logging in or signing up HydrogenSulphide TTT 10azam10 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 724 Category: Science & Tech.. License: All Rights Reserved Like it (4) Dislike it (1) Added: May 02, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: towema (7 month(s) ago) I like your presentation and would like to download it. May I? Saving..... Post Reply Close Saving..... Edit Comment Close By: hatchevans (9 month(s) ago) Thank you for information. May I download your presentation? Saving..... Post Reply Close Saving..... Edit Comment Close By: farouq6447 (11 month(s) ago) hello sir...a very impressive slides...may i download? Saving..... Post Reply Close Saving..... Edit Comment Close By: anshuravi (12 month(s) ago) very good information against h2s gas thank you ; sir. ravi Saving..... Post Reply Close Saving..... Edit Comment Close By: almrisk (25 month(s) ago) Thanks for your presentation please can i download ? Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript Slide 1: 1 May 2009 1 Hydrogen Sulphide Awareness Slide 2: 1 May 2009 2 The Silent Killer Slide 3: 1 May 2009 3 The toxicity of the gas was responsible for the death of 3 men in GASCO – Abu Dhabi in one incident. In Saudi Arabia 19 people were killed in one incident due to H2S poisoning in 1980 Disastrous Accidents Occupational fatalities due to H2S exposure- Alberta, Canada 1976-1994. : 1 May 2009 4 Occupational fatalities due to H2S exposure- Alberta, Canada 1976-1994. Industry: Oil & Gas Fatalities 1976-1994 Operation of oil & gas wells Natural gas processing plants Oilfield maintenance & construction Operation of battery tanks Gas well blow out control Well servicing with service rigs Other Transportation Other Total 5 4 3 2 2 1 4 6 3 30 Objectives : 1 May 2009 5 Objectives Identify chemical constituents of Hydrogen Sulphide and its existence in the nature; Explain physical and chemical characteristics of the gas; Recall different names of the gas; Recognize hazards of the gas; Define safe working levels. By the end of this module the participant will be able to: Hydrogen Sulphide (H2S) : 1 May 2009 6 Hydrogen Sulphide (H2S) Let’s know each other. Please tell us your: Name Job Experience Constituents of Gas & Existence : 1 May 2009 7 Constituents of Gas & Existence H2S is a combination of hydrogen and sulphur atoms:- 2 hydrogen to 1 sulphur The process of combination takes place by a bio-chemical reaction, the decay, rotting down or putrefaction of dead organic material How is H2S formed ? H H S Gas Existence in Oil/Gas Industry : 1 May 2009 8 Define areas where you find H2S: Oil Production & Processing Facilities Degassing Stations Storage Facilities Refineries Sewage Treatment Plants Gas Existence in Oil/Gas Industry Physical & Chemical Characteristics : 1 May 2009 9 Physical & Chemical Characteristics Colourless It has the smell of rotten eggs Heavier than air Highly flammable (explosive) Soluble in water Extremely toxic Irritant Corrosive Other names : 1 May 2009 10 Other names H2S Stink Damp Sulphurated Hydrogen Sour Gas Rotten-Egg Gas Hydrosulphuric Acid Sulphur Hydride Hazards of H2S : 1 May 2009 11 Hazards of H2S At slightly higher concentrations when mixed with air it will kill your sense of smell It is one of the most lethal gases Irritant at relatively low concentrations. Corrosive . Adverse Health Effect : 1 May 2009 12 0.13 ppm Minimal perceptible odour 4.60 ppm Easily detectable, moderate odour 10 ppm Beginning eye irritation 27.0 ppm Strong, unpleasant odour, but not intolerable 100 ppm Coughing, eye irritation, loss of sense of smell after 2-5 minutes 200 -300ppm Marked conjunctivitis(eye inflammation) and respiratory tract irritation after one hour of exposure 300 ppm Immediately Dangerous to Life & Health (IDLH) 500 -700ppm Loss of consciousness and possible death within 30 minutes to one hour 700 -1000ppm Rapid unconsciousness, cessation (stopping or pausing) of respiration and death 1000 -2000ppm Unconsciousness immediately with rapid cessation of respiration and death within a few minutes. Death may occur even if the individual is removed to fresh air at once Adverse Health Effect Adverse Health Effect : 1 May 2009 13 The effect of H2S depends on 4 factors: Example: Bronchial Asthma Alcohol Duration Intensity Frequency Individual Susceptibility Note: there are FOUR (4) factors Adverse Health Effect Flammability : 1 May 2009 14 Flammability 0% H2S 100%H2S 4.3% Lower explosive level 46% Upper explosive level Boom !! (43,000 PPM) (460,000 PPM) Gas lean Gas rich will not burn will not burn Explosive Range H2S is Highly Corrosive : 1 May 2009 15 H2S is highly corrosive by nature It reacts with metals resulting in: Hydrogen embrittlement Sulphide stress cracking (SSC) Hydrogen induced cracking (HIC) Forms an acid in water which causes pitting on steel H2S is Highly Corrosive Safe Working Limit : 1 May 2009 16 What is meant by PPM ? Parts Per Million If a million parts of air by volume contains one part of H2S it is 1PPM H2S in air 1PPM = 0.0001% 10 PPM = 0.001% (TLV) 100 PPM = 0.01% 1000 PPM = 0.1% 10,000 PPM = 1% Safe Working Limit Safe Working Limit : 1 May 2009 17 This value is the maximum concentration of toxic gas that a worker can be exposed to day after day without suffering health problems This TLV is an average taken over an 8 hour day or a 40 hour week TLV - Threshold Limit Value TWA - Time Weighted Average Threshold Limit Value-Time Weighted Average is normally abbreviated as TLV-TWA H2S has a TLV-TWA of 10 PPM in 8 hours exposure Recommended industry practice is to wear BA at 10 PPM and above Best safe practice is to work at zero exposure to H2S Threshold Limit Value - Time Weighted Average Safe Working Limit Safe Working Limit : 1 May 2009 18 This is a higher TLV which defines the maximum concentration that a person may be exposed to for a maximum of 15 minutes There should be no more than four such exposures per day, with at least 1 hour between exposures Short Term Exposure Limit (TLV-STEL)-15PPM Safe Working Limit Safe Working Limit : 1 May 2009 19 This is the concentration level beyond which workers must never be exposed- even for an instant ! It is 20 ppm Threshold Limit Ceiling (TLV-C) Safe Working Limit Summary : 1 May 2009 20 Hydrogen Sulphide existing in nature as well as Oil & Gas industries. Physical and chemical characteristics of gas (colourless, rotten egg odour, heavier than air, water soluble, irritant, flammable). Different potential hazards; health hazards (toxic/ irritant) – flammable – corrosive Safe working limits (TLV-TWA, STEL, TLV-Ceiling) Refer to ADCO HSE Manual 10 to know more details about H2S Remember: Summary Finally : 1 May 2009 21 Remember- don’t take chances with H2S You won’t get a second chance Know your enemy to work safely Any Questions? Finally You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
HydrogenSulphide TTT 10azam10 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 724 Category: Science & Tech.. License: All Rights Reserved Like it (4) Dislike it (1) Added: May 02, 2009 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... By: towema (7 month(s) ago) I like your presentation and would like to download it. May I? Saving..... Post Reply Close Saving..... Edit Comment Close By: hatchevans (9 month(s) ago) Thank you for information. May I download your presentation? Saving..... Post Reply Close Saving..... Edit Comment Close By: farouq6447 (11 month(s) ago) hello sir...a very impressive slides...may i download? Saving..... Post Reply Close Saving..... Edit Comment Close By: anshuravi (12 month(s) ago) very good information against h2s gas thank you ; sir. ravi Saving..... Post Reply Close Saving..... Edit Comment Close By: almrisk (25 month(s) ago) Thanks for your presentation please can i download ? Saving..... Post Reply Close Saving..... Edit Comment Close loading.... See all Premium member Presentation Transcript Slide 1: 1 May 2009 1 Hydrogen Sulphide Awareness Slide 2: 1 May 2009 2 The Silent Killer Slide 3: 1 May 2009 3 The toxicity of the gas was responsible for the death of 3 men in GASCO – Abu Dhabi in one incident. In Saudi Arabia 19 people were killed in one incident due to H2S poisoning in 1980 Disastrous Accidents Occupational fatalities due to H2S exposure- Alberta, Canada 1976-1994. : 1 May 2009 4 Occupational fatalities due to H2S exposure- Alberta, Canada 1976-1994. Industry: Oil & Gas Fatalities 1976-1994 Operation of oil & gas wells Natural gas processing plants Oilfield maintenance & construction Operation of battery tanks Gas well blow out control Well servicing with service rigs Other Transportation Other Total 5 4 3 2 2 1 4 6 3 30 Objectives : 1 May 2009 5 Objectives Identify chemical constituents of Hydrogen Sulphide and its existence in the nature; Explain physical and chemical characteristics of the gas; Recall different names of the gas; Recognize hazards of the gas; Define safe working levels. By the end of this module the participant will be able to: Hydrogen Sulphide (H2S) : 1 May 2009 6 Hydrogen Sulphide (H2S) Let’s know each other. Please tell us your: Name Job Experience Constituents of Gas & Existence : 1 May 2009 7 Constituents of Gas & Existence H2S is a combination of hydrogen and sulphur atoms:- 2 hydrogen to 1 sulphur The process of combination takes place by a bio-chemical reaction, the decay, rotting down or putrefaction of dead organic material How is H2S formed ? H H S Gas Existence in Oil/Gas Industry : 1 May 2009 8 Define areas where you find H2S: Oil Production & Processing Facilities Degassing Stations Storage Facilities Refineries Sewage Treatment Plants Gas Existence in Oil/Gas Industry Physical & Chemical Characteristics : 1 May 2009 9 Physical & Chemical Characteristics Colourless It has the smell of rotten eggs Heavier than air Highly flammable (explosive) Soluble in water Extremely toxic Irritant Corrosive Other names : 1 May 2009 10 Other names H2S Stink Damp Sulphurated Hydrogen Sour Gas Rotten-Egg Gas Hydrosulphuric Acid Sulphur Hydride Hazards of H2S : 1 May 2009 11 Hazards of H2S At slightly higher concentrations when mixed with air it will kill your sense of smell It is one of the most lethal gases Irritant at relatively low concentrations. Corrosive . Adverse Health Effect : 1 May 2009 12 0.13 ppm Minimal perceptible odour 4.60 ppm Easily detectable, moderate odour 10 ppm Beginning eye irritation 27.0 ppm Strong, unpleasant odour, but not intolerable 100 ppm Coughing, eye irritation, loss of sense of smell after 2-5 minutes 200 -300ppm Marked conjunctivitis(eye inflammation) and respiratory tract irritation after one hour of exposure 300 ppm Immediately Dangerous to Life & Health (IDLH) 500 -700ppm Loss of consciousness and possible death within 30 minutes to one hour 700 -1000ppm Rapid unconsciousness, cessation (stopping or pausing) of respiration and death 1000 -2000ppm Unconsciousness immediately with rapid cessation of respiration and death within a few minutes. Death may occur even if the individual is removed to fresh air at once Adverse Health Effect Adverse Health Effect : 1 May 2009 13 The effect of H2S depends on 4 factors: Example: Bronchial Asthma Alcohol Duration Intensity Frequency Individual Susceptibility Note: there are FOUR (4) factors Adverse Health Effect Flammability : 1 May 2009 14 Flammability 0% H2S 100%H2S 4.3% Lower explosive level 46% Upper explosive level Boom !! (43,000 PPM) (460,000 PPM) Gas lean Gas rich will not burn will not burn Explosive Range H2S is Highly Corrosive : 1 May 2009 15 H2S is highly corrosive by nature It reacts with metals resulting in: Hydrogen embrittlement Sulphide stress cracking (SSC) Hydrogen induced cracking (HIC) Forms an acid in water which causes pitting on steel H2S is Highly Corrosive Safe Working Limit : 1 May 2009 16 What is meant by PPM ? Parts Per Million If a million parts of air by volume contains one part of H2S it is 1PPM H2S in air 1PPM = 0.0001% 10 PPM = 0.001% (TLV) 100 PPM = 0.01% 1000 PPM = 0.1% 10,000 PPM = 1% Safe Working Limit Safe Working Limit : 1 May 2009 17 This value is the maximum concentration of toxic gas that a worker can be exposed to day after day without suffering health problems This TLV is an average taken over an 8 hour day or a 40 hour week TLV - Threshold Limit Value TWA - Time Weighted Average Threshold Limit Value-Time Weighted Average is normally abbreviated as TLV-TWA H2S has a TLV-TWA of 10 PPM in 8 hours exposure Recommended industry practice is to wear BA at 10 PPM and above Best safe practice is to work at zero exposure to H2S Threshold Limit Value - Time Weighted Average Safe Working Limit Safe Working Limit : 1 May 2009 18 This is a higher TLV which defines the maximum concentration that a person may be exposed to for a maximum of 15 minutes There should be no more than four such exposures per day, with at least 1 hour between exposures Short Term Exposure Limit (TLV-STEL)-15PPM Safe Working Limit Safe Working Limit : 1 May 2009 19 This is the concentration level beyond which workers must never be exposed- even for an instant ! It is 20 ppm Threshold Limit Ceiling (TLV-C) Safe Working Limit Summary : 1 May 2009 20 Hydrogen Sulphide existing in nature as well as Oil & Gas industries. Physical and chemical characteristics of gas (colourless, rotten egg odour, heavier than air, water soluble, irritant, flammable). Different potential hazards; health hazards (toxic/ irritant) – flammable – corrosive Safe working limits (TLV-TWA, STEL, TLV-Ceiling) Refer to ADCO HSE Manual 10 to know more details about H2S Remember: Summary Finally : 1 May 2009 21 Remember- don’t take chances with H2S You won’t get a second chance Know your enemy to work safely Any Questions? Finally