Practice questions on May 27, 2017; replies will earn 0–6 points (no scoring for replies sent more than 1 day after posting). Thank you for your replies

2017-05-27View Original

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Multiple-choice question (no points will be given for incorrect answers or incomplete responses). The \"four injections\" commonly used as anti-corrosion measures in atmospheric and vacuum distillation units refer to (A, B, C, E). A. Water injection B. Alkali injection C. Ammonia injection D. Demulsifier injection E. Corrosion inhibitor injection. No scoring for replies given within 1 day of posting; thank you for your replies

Reply #22017-05-27

A. Water injection C. Ammonia injection D. Demulsifier injection E. Corrosion inhibitor injection

Reply #32017-05-27

OP, the answer is wrong. Alkali-processed refineries were phased out long ago.

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Practice questions on May 27, 2017; replies will earn 0–6 points (no scoring for replies sent more than 1 day after posting). Thank you for your replies

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