(Daily Question) Coal-to-Oil and Olefins Forum, 2018.2.8
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3.jpg Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: When starting the propylene unit in the (DMTO) olefin separation plant, what is the vacuum level achieved by the startup jet pump? When starting the propylene refrigeration compressor, the start-up jet pump creates a vacuum of around -73 kPa! Note: The answer will be announced automatically in two days!
The vacuum level that can be achieved by starting the exhaust pump is generally only around 80 KPa; the exhaust pump can be activated only when the vacuum inside the condenser is below 80 KPa.
What is the vacuum level achieved by the start-up jet pump when the propylene unit is started up? -69KPa
When starting the propylene refrigeration compressor, the start-up jet pump creates a vacuum of around -73 kPa!
The vacuum level achieved by the starting jet pump is generally around 80 KPa
Water cooler – 85 kPa, air cooler – 80 kPa
The vacuum level that can be achieved by the dynamic extractor is generally only around 80 KPa; the start-up extractor can be activated only when the vacuum in the condenser is below 80 KPa.
When starting the propylene refrigeration compressor, the start-up jet pump creates a vacuum of around -73 kPa
When starting the propylene refrigeration compressor, the start-up jet pump creates a vacuum of around -73 kPa