[Q&A] Catalytic Coking Reformate Blending Edition 20170905
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Describe the working principle of the extraction tower. (Reforming unit) Answer: Multiple layers of sieve plates are installed in the extraction tower. The solvent enters the tower from its top and flows downward, while the feedstock (reformed oil containing aromatics) enters the tower from its middle. Since the relative density of the feedstock is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower. http://bbs.hcbbs.com/static/image/hrline/1.gif http://bbs.hcbbs.com/static/image/hrline/2.gif The answers will be announced automatically after two days. Petrochemical Zone—“Creative Ideas for Energy Saving”: The Second Round of This Activity Is in Full Swing 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 for 2017 on the Blending of Products from Catalytic Coking and Reforming Processes http://bbs.hcbbs.com/thread-1811219-1-1.html [Q&A] Summary Post for 2017 on the Blending of Products from Catalytic Coking and Reforming Processes http://bbs.hcbbs.com/thread-1826018-1-1.html
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
Liquid-liquid extraction, taking advantage of the different solubilities of aromatics and non-aromatics in sulfolane
Multiple sieve plates are installed in the extraction tower; the solvent enters the tower from the top and flows downward. The feedstock (reformed oil containing aromatics) enters the tower from the middle, and since its relative density is lower than that of the solvent, it flows upward. When it comes into contact in reverse direction with the solvent droplets sprayed from small holes (known as the dispersed phase), the aromatics in the feedstock are extracted by these small solvent droplets. It keeps rising in this way, with the aromatics in the feed being continuously extracted. By the time it reaches the top of the tower, very few aromatics remain in the feed; what’s left is mainly non-aromatic compounds. This is the extraction process in an extraction tower.
The compound is transferred from one solvent to another by taking advantage of the difference in its solubility or distribution coefficient in two immiscible (or slightly soluble) solvents. After repeated extractions and transfers, the vast majority of the compounds were extracted.