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This post was last edited by Green Lotus on 2017-8-6 at 11:36. To increase the popularity of this section, a daily question activity has been launched; the purpose of this activity is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, they can also easily bring wealth home :) . Participation: Prize of 5 Wealth ; Correct answer: Reward of 10 wealth points ; Note: Questions from the same day will receive full feedback if answered on the same day; answers given the next day will earn 5-8 wealth points. This post is valid for 48 hours. http://bbs.hcbbs.com/static/image/hrline/2.gif Fill-in-the-blank question: The corrosion of petroleum processing equipment can be classified into three categories based on the medium involved: chemical corrosion, electrochemical corrosion, and physical corrosion. Answer: Chemical corrosion, electrochemical corrosion. Petrochemical sector – “Creative Ideas for Energy Savings” campaign (the second phase is currently in progress): http://bbs.hcbbs.com/thread-1666758-1-1.html. “My Technical Upgrades in the Coal Chemical Industry” in 2017: http://bbs.hcbbs.com/thread-1786290-1-1.html. [Daily Question] Summary post on catalyst-based coking and reformed oil blending for 2017: http://bbs.hcbbs.com/thread-1811219-1-1.html
The corrosion of petroleum processing equipment can be classified into three main types based on the corrosive agent: electrochemical corrosion, chemical corrosion, and physical corrosion.
(Chemical corrosion)------------(Electrochemical corrosion)