HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

One question per day: Coal-to-oil and olefins discussion forum, 2017.12.19

2017-12-19View Original

Thread Content

3.jpg Participation: Prize of 5 Wealth; Correct answer: Reward of 10 wealth points ; Note: This post is valid for 48 hours. Question: Principle of methanol thawing in the (DMTO) olefin separation unit: Since the melting point of methanol is -97.8 degrees, mixing it with water lowers the freezing point of water, which in turn reduces the initial temperature at which hydrocarbon-water compounds form. Moreover, methanol is highly soluble in water, so it flows out of the system! Note: The answers will be released automatically in two days!
Reply #22017-12-19
Alcohols have a melting point of -97.8 degrees; when mixed with water, it lowers the freezing point of water, thereby reducing the initial temperature at which hydrocarbon-water compounds are formed. Moreover, alcohols are highly soluble in water
Reply #32017-12-19
Since methanol has a melting point of -97.8 degrees, mixing it with water lowers the freezing point of water, which in turn reduces the initial temperature at which hydrocarbon-water compounds are formed. Moreover, methanol is highly soluble in water, so it flows out of the system!
Reply #42017-12-19
Since methanol has a melting point of -97.8 degrees, mixing it with water lowers the freezing point of water, which in turn reduces the initial temperature at which hydrocarbon-water compounds are formed. Moreover, methanol is highly soluble in water and thus flows out of the system.
Reply #52017-12-19
The location of freezing blockage is determined by comparing the pressure differences across various sections of the tower with the normal or design values; methanol is then injected above the location of freezing blockage to thaw it
Reply #62017-12-19
Methanol has a melting point of -97.8°C. Its mixture with water results in a very low freezing point, and it is highly soluble in water, which causes the hydrocarbon-water mixture to melt and be removed from the system.
Reply #72017-12-19
Since methanol has a melting point of -97.8 degrees, mixing it with water lowers the freezing point of water, which in turn reduces the initial temperature at which hydrocarbon-water compounds are formed. Moreover, methanol is highly soluble in water, so it flows out of the system
Reply #82017-12-19
Since methanol has a low freezing point, under the operating conditions of the (DMTO) olefin separation unit, adding methanol serves as an antifreeze effect due to the low-temperature separation process.
Reply #92017-12-19
Since methanol has a melting point of -97.8 degrees, mixing it with water lowers the freezing point of water, which in turn reduces the initial temperature at which hydrocarbon-water compounds are formed. Moreover, methanol is highly soluble in water, so it flows out of the system!

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.