TMA3 CHM311 PETROLEUM CHEMISTRY QUESTION AND ANSWER

TMA3 CHM311 PETROLEUM CHEMISTRY

  1. Hydrocarbons heavier than methane that is recovered from natural gas are referred as_____?
  2. Natural gas solid
  3. Paraffin
  4. Natural gas liquid
  5. Gasoline

The answer is C. Natural gas liquid

  1. In order to reduce corrosion problems and to prevent hydrate formation?
  2. Moisture must be removed
  3. Moisture must be added
  4. Crude oil must be removed
  5. Metal must be removed

The A. Moisture must be removed

  1. Alternation of molecular structure is important in order to
  2. Breaking of large hydrocarbon into smaller ones
  3. Convert more valuable hydrocarbon compound into valuable ones
  4. Convert less valuable hydrocarbon into valuable ones
  5. Convert less valuable hydrocarbon compound into less ones

The answer is C.  Convert less valuable hydrocarbon into valuable ones

  1. In chemisorption, the is characterized by ______?
  2. Removal of moisture
  3. Corrosion
  4. High capability of absorption large amount of acid gasses
  5. Addition of water

The answer is C. High capability of absorption large amount of acid gasses

  1. The following are the most important process used for physical absorption of gas except?
  2. Celexol
  3. Selexol
  4. Sulphinol
  5. Rectisol

The answer is A. Celexol

  1. Solid while compounds formed from a physical chemical reaction between hydrocarbons and water under the high pressures and low temperatures used to transport natural gas via pipeline are known as ____?
  2. Moisture
  3. Hydrate
  4. Catalyst
  5. Sulphate

The answer is B. Hydrate

  1. Natural gas liquids are normally fractionated to separate them into the following stream except?
  2. An ethane-rich stream
  3. Natural gasoline
  4. Liquefied petroleum gas
  5. Solidified useful petrochemical

The answer is D. Solidified useful petrochemical

  1. Thermal diffusion and crystallization methods used in refining crude petroleum are based on difference in _____ of the components of crude oils.
  2. Chemical properties
  3. Physical properties
  4. Mechanical properties
  5. Extraction properties
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The answer is B. Physical properties

  1. These are typical solvent for water removal in order to increase pipeline efficiency except
  2. Ethylene glycol
  3. Diethylene glycol
  4. Triethylene glycol
  5. Tetraethylene glycol

The answer is D. Tetraethylene glycol

  1. The following are methods used in alteration of molecular structure except____?
  2. Condensation cracking
  3. Reforming
  4. Hydro cracking
  5. Catalytic cracking

The answer is A. Condensation cracking

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