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What is the four-stage distillation process? Four-stage distillation builds upon the traditional atmospheric and vacuum distillation process by adding an additional vacuum furnace and a vacuum tower; as a result, part of the atmospheric load and part of the vacuum load are transferred to the vacuum tower respectively. The vacuum tower is primarily used for separating diesel and wax oil. This process is relatively simple, utilizing a new four-stage distillation configuration that includes one fractionating tower, one atmospheric furnace, one atmospheric tower, one vacuum furnace, one vacuum tower, one secondary vacuum furnace, and one secondary vacuum tower. Participate in in-depth discussions on related topics +5 wealth============================================= Discussion on the two-stage combined cracking process: http://bbs.hcbbs.com/thread-1560503-1-1.html (Source: Haichuan Chemical Industry Forum) [Petroleum and Chemicals Section] Compilation of professional “basic knowledge” posts (Supported by the main forum; surprises await, with prizes available for winners): http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum). This initiative encourages various groups to create or individuals to post basic knowledge-related posts (the content can be gathered from the internet or created originally; multiple topics can be used, and there are no restrictions on the way of participation – it could be an explanation of a noun or an introduction to a series of principles). What are some suggestions and methods for getting in touch with cleaners? The regular administrator will reward the content that performs excellently. You will also be rewarded for regions where the activities are more intensive. (Regions should also carry out summarization and optimization based on the amount of such content available in their area.) ———————————————— The second phase of the event runs from February 20, 2016, to the end of June 2016; at least 50 award vouchers are available for you to claim (mugs, power banks, USB drives, and other prizes or event benefits). Awards can be given at any time based on performance, and additional rewards can also be granted at any time depending on performance. (12,000 event points and rewards await those regions that perform well)