Chemical Engineering Safety and Processes Quiz
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Questions and Answers

What effect do smaller granulator screens have on the amperage?

  • They decrease the amps significantly.
  • They cause high amps to occur. (correct)
  • They stabilize the amperage output.
  • They have no effect on amps.
  • Which type of pump is used to transport aqueous phase solution to the reactors?

  • Diaphragm pump
  • Gear pump
  • Centrifugal pump (correct)
  • Peristaltic pump
  • What additive is required for product 934 SH?

  • TCE
  • BVE (correct)
  • SAF
  • DLP
  • What happens to the temperature when caustic is charged into a dissolution tank?

    <p>The temperature increases.</p> Signup and view all the answers

    What is the purpose of the Kason in the system?

    <p>To transport powder through piping.</p> Signup and view all the answers

    In what form is acrylamide most dangerous?

    <p>Crystallization (solid) form</p> Signup and view all the answers

    Is it acceptable to use homemade tools to clear a clog in equipment?

    <p>No, it is not acceptable</p> Signup and view all the answers

    What type of environmental impact does the finished product have?

    <p>The finished product can damage forest health</p> Signup and view all the answers

    Which statement about MEHQ is accurate?

    <p>MEHQ is considered a known carcinogen</p> Signup and view all the answers

    Which inhibitors are used in the production of acrylamide?

    <p>Acrylic acid and caustic</p> Signup and view all the answers

    When is the thermal catalyst typically added to the reactor?

    <p>After the addition of TBP</p> Signup and view all the answers

    What is the maximum amount of catalyst approved to be in the plant at any given time?

    <p>48 hours' worth</p> Signup and view all the answers

    What by-product is generated in the process of making post hydro?

    <p>Carbon dioxide</p> Signup and view all the answers

    What is a hazard associated with the use of nitrogen?

    <p>It is a flammable gas</p> Signup and view all the answers

    What does free monomer refer to?

    <p>Unreacted or un-polymerized monomers used in gels</p> Signup and view all the answers

    What does BVE create more of in the dissolution tank?

    <p>Foam</p> Signup and view all the answers

    What type of charge do anionic products have?

    <p>Negative</p> Signup and view all the answers

    When are dissolution tank samples discarded?

    <p>After confirming a corresponding reactor sample to QC silo blend</p> Signup and view all the answers

    When should you take a gel sample?

    <p>When any kind of QC result fails and the product becomes non-conformed</p> Signup and view all the answers

    Where is the dryer pressure transmitter located?

    <p>In the top side of the dryer shell</p> Signup and view all the answers

    What is the main function of the dryer cyclones?

    <p>To allow the dryer air to vent out through the ducts and stack, while returning the product to the dryers.</p> Signup and view all the answers

    What happens when the amount of redox catalyst is increased?

    <p>It will result in a faster kinetic reaction.</p> Signup and view all the answers

    If product is observed emitting from the stack, which situation could contribute to this problem?

    <p>All of the above.</p> Signup and view all the answers

    What is an important reason for monitoring dryer moistures?

    <p>To assure that all rotors are compatible.</p> Signup and view all the answers

    What components cause the kason to vibrate?

    <p>Air flow from the dryer cyclones and the center spiral gasket.</p> Signup and view all the answers

    What personal protective equipment is needed to handle caustic soda?

    <p>All of the above</p> Signup and view all the answers

    What does a reactor pressure test primarily prevent?

    <p>Leaks</p> Signup and view all the answers

    What could occur if too little hypo is added to any reaction?

    <p>Slower reaction curve</p> Signup and view all the answers

    What are the steps of reaction curve polymerization?

    <p>Initiation, propagation, and termination</p> Signup and view all the answers

    Why do we set the dissolution tanks to -2 degrees C when polymerizing at 0 degrees C?

    <p>To prevent auto-polymerization and ensure product consistency</p> Signup and view all the answers

    What is the purpose of adding acetic acid, caustic, and 50% acrylic acid during production?

    <p>To adjust the pH of the solution</p> Signup and view all the answers

    What is the consequence of over drying products in the production process?

    <p>It can lead to filter ratio failure</p> Signup and view all the answers

    What does hydrolysis refer to in the context of chemical processes?

    <p>Chemical breakdown due to reaction with water</p> Signup and view all the answers

    During which step is reverse osmosis water added to the catalyst pitchers?

    <p>Both during and after the drawdown process</p> Signup and view all the answers

    What is the primary reason for oiling reactors in the production process?

    <p>To assist with draining out the gel</p> Signup and view all the answers

    What could potentially cause the finished product to test high?

    <p>Acrylamide leaking by an actuator valve</p> Signup and view all the answers

    Which action should be taken first if oversize particles are found coming out of the dryer?

    <p>Check the granulator screen</p> Signup and view all the answers

    What could be a consequence of not having enough oil flow in the granulator?

    <p>Granulator high amps</p> Signup and view all the answers

    What should be done to ensure proper draw-down temperature in reactors and dissolution tanks?

    <p>Close manual valves</p> Signup and view all the answers

    What does flocculation refer to in this context?

    <p>Separation of a solution to remove sediment</p> Signup and view all the answers

    What type of reactors are used at SNT Flopa?

    <p>Tube reactors</p> Signup and view all the answers

    What could cause high moisture levels coming out of dryer 1?

    <p>Operator could be using the wrong drying conditions</p> Signup and view all the answers

    What does a brownish gel color typically signify?

    <p>Insufficient catalyst in the reaction</p> Signup and view all the answers

    What might prevent a burner flame from lighting?

    <p>Photo eye needs to be replaced</p> Signup and view all the answers

    Why is it important not to mix catalyst too long?

    <p>Mixing too long can cause chemicals to lose potency</p> Signup and view all the answers

    What problem could occur if the pressure is too low in the dryer?

    <p>Too much moisture in the product</p> Signup and view all the answers

    What could be a reason for low readings on the dryer pressure transmitter?

    <p>The pressure transmitter may be malfunctioning</p> Signup and view all the answers

    What does the abbreviation VHM represent?

    <p>Very high molecular weight</p> Signup and view all the answers

    Which inhibitors are commonly used in the production of acrylic acid?

    <p>MEHQ and oxygen</p> Signup and view all the answers

    Why is TBHP stored in the flammable cabinet of the process lab?

    <p>It can ignite easily when in contact with certain substances</p> Signup and view all the answers

    Study Notes

    Safety and Procedures

    • Smaller granulator screens can cause high amps to occur. (True/False)
    • Centrifugal is the type of pump we use to transport aqueous phase solution to the reactors. (True/False)
    • Product 934 SH requires the additive BVE. (True/False)
    • Caustic causes temperature to increase when charging a dissolution tank. (True/False)
    • Aqueous solution should never be allowed outside of the dike so it can be contained and disposed of properly. (True/False)
    • The granulator hopper measure weight by the use of a flow meter. (True/False)
    • Hypo is used as a chain-transfer agent but has a reducer properties. (True/False)
    • The purpose of the Kason is to help transport powder through piping. (True/False)
    • Diffusion is the type of drying done in dryer 1. (True/False)
    • Evaporative is the type of drying done in dryer 2. (True/False)
    • Only powders shift supervisors are authorized to work in solenoid control panels. (True/False)

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    Description

    Test your knowledge on essential chemical engineering processes, safety protocols, and equipment used in production. This quiz covers topics such as pump types, additive requirements, and environmental impacts relating to chemical manufacturing. Assess your understanding of the various hazards and operational considerations in the field.

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