Separator - Revision history

Mhantzmon: /* Conclusion */

2015-03-02T02:56:36Z

Conclusion

← Older revision		Revision as of 21:56, 1 March 2015
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	==Conclusion==		==Conclusion==
			The process of simulating separation in HYSYS is fairly straightforward once the user has a fully specified feed. The feed specifications come from the description of the problem that the user is attempting to solve. Without added duty, the full specification of the feed is all the information that HYSYS needs to simulate the separation. Within the feed stream, two phases exist, and the composition and flow rate of each phase will determine the composition and flow rate of the two phases leaving the separator. The addition of duty complicates the problem slightly more, though it also gives the user more flexibility as they are able to specify one aspect of the product streams and customize their separation.

			The choice between using a normal flash separator and a 3-phase separator depends on the species in the feed stream. If there are only two phases, the flash separator is sufficient, thought the exact same separation can be simulated with a 3-phase separator. In that case, the light liquid flow rate would be 0. However, if there are 3 phases in the feed stream it is necessary to simulate with a 3-phase separator. The flash separator would not work as the liquid stream would still contain two distinct phases.

	==References==		==References==

Mhantzmon at 02:49, 2 March 2015

2015-03-02T02:49:31Z

← Older revision		Revision as of 21:49, 1 March 2015
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	==Introduction==		==Introduction==
	The implementations of separation processes are of utmost importance in designing chemical plants. The product stream from a reactor is rarely close to the purity desired by the operator. There are either impurities from undesirable side reactions or unreacted species from the inlet stream. As a result, most chemical processes use an array of separation processes designed to purify the desired product and recycle remaining reactants back to the reactor feed. Aspen HYSYS V8.0 has an array of units that are able to simulate separation processes and estimate the composition of the product streams. By choosing parameters in the system in an consistent way, the operator can fully specify the system in a way that HYSYS can solve for the remaining parameters.		The implementations of separation processes are of utmost importance in designing chemical plants. The product stream from a reactor is rarely close to the purity desired by the operator. There are either impurities from undesirable side reactions or unreacted species from the inlet stream. As a result, most chemical processes use an array of separation processes designed to purify the desired product and recycle remaining reactants back to the reactor feed. Aspen HYSYS V8.0 has an array of units that are able to simulate separation processes and estimate the composition of the product streams. By choosing parameters in the system in an consistent way, the operator can fully specify the system in a way that HYSYS can solve for the remaining parameters.


	==Types of Separation==		==Types of Separation==

Mhantzmon at 02:49, 2 March 2015

2015-03-02T02:49:18Z

← Older revision		Revision as of 21:49, 1 March 2015
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	As seen above, the user specified the vapor flow rate and HYSYS was able to converge and solve for the remaining unknowns in the system.		As seen above, the user specified the vapor flow rate and HYSYS was able to converge and solve for the remaining unknowns in the system.

			==Conclusion==


	==References==		==References==

Mhantzmon: /* 3-Phase Separator */

2015-03-02T02:48:59Z

3-Phase Separator

← Older revision		Revision as of 21:48, 1 March 2015
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	[[File:mwh6.png\|thumb\|center\|'''Figure 5'' Converged 3-Phase Separator with duty\|450x500px]]		[[File:mwh6.png\|thumb\|center\|'''Figure 5'' Converged 3-Phase Separator with duty\|450x500px]]

			As seen above, the user specified the vapor flow rate and HYSYS was able to converge and solve for the remaining unknowns in the system.

	==References==		==References==

Mhantzmon: /* 3-Phase Separator */

2015-03-02T02:46:16Z

3-Phase Separator

← Older revision		Revision as of 21:46, 1 March 2015
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	===3-Phase Separator===		===3-Phase Separator===
	To simulate a useful 3-phase separator, a feed is needed that will separate into two liquid phases. The addition of benzene to the water ethanol system adds the desired element of immiscible liquid phases. The feed can be then specified as before and connected to the 3-Phase Separator. Vapor, light liquid, and heavy liquid product streams are added.		To simulate a useful 3-phase separator, a feed is needed that will separate into two liquid phases. The addition of benzene to the water ethanol system adds the desired element of immiscible liquid phases. The feed can be then specified as before and connected to the 3-Phase Separator. Vapor, light liquid, and heavy liquid product streams are added. As with the flash separator, the 3-phase separator is fully specified once the feed is specified.

			[[File:mwh5.png\|thumb\|center\|'''Figure 4'' Converged 3-Phase Separator\|450x500px]]
⚫	~~As with the flash separator, the 3-phase separator is fully specified once the feed is specified.~~ However the addition of a duty allows the user to specify one aspect of the product streams. Usually it is useful to specify concentrations of one component in a product stream or possibly the flow rate of one of those streams.

		⚫	However the addition of a duty allows the user to specify one aspect of the product streams. Usually it is useful to specify concentrations of one component in a product stream or possibly the flow rate of one of those streams.

			[[File:mwh6.png\|thumb\|center\|'''Figure 5'' Converged 3-Phase Separator with duty\|450x500px]]

	==References==		==References==

Mhantzmon: /* Flash Separator */

2015-03-02T02:44:50Z

Flash Separator

← Older revision		Revision as of 21:44, 1 March 2015
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	[[File:mwh4.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]		[[File:mwh4.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]

	In figure 3, the composition of the ~~vapor~~ stream was specified and HYSYS was able to calculate the ~~liquid~~ composition as well as other flow and energy parameters.		In figure 3, the composition of the liquid stream was specified and HYSYS was able to calculate the vapor composition as well as other flow and energy parameters.

	===3-Phase Separator===		===3-Phase Separator===

Mhantzmon: /* Flash Separator */

2015-03-02T02:42:40Z

Flash Separator

← Older revision		Revision as of 21:42, 1 March 2015
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	===Flash Separator===		===Flash Separator===
	To simulate the flash separator, first the feed must be fully specified as ~~described~~ ~~above~~.		To simulate the flash separator, first the feed must be fully specified as shown below.

	[[File:mwh1.png\|thumb\|center\|'''Figure 1''' Feed Specification\|450x500px]]		[[File:mwh1.png\|thumb\|center\|'''Figure 1''' Feed Specification\|450x500px]]

Mhantzmon: /* Flash Separator */

2015-03-02T02:42:19Z

Flash Separator

← Older revision		Revision as of 21:42, 1 March 2015
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	===Flash Separator===		===Flash Separator===
	To simulate the flash separator, first the feed must be fully specified as described above.		To simulate the flash separator, first the feed must be fully specified as described above.

	[[File:mwh1.png\|thumb\|center\|'''Figure 1''' Feed Specification\|450x500px]]		[[File:mwh1.png\|thumb\|center\|'''Figure 1''' Feed Specification\|450x500px]]

	Then the feed can be connected to the separator, and outlet vapor and liquid streams can also be added. If the separator is left without a duty, then HYSYS will be able to solve for the outlet steams based on the VLE composition of the feed.		Then the feed can be connected to the separator, and outlet vapor and liquid streams can also be added. If the separator is left without a duty, then HYSYS will be able to solve for the outlet steams based on the VLE composition of the feed.

	[[File:mwh3.png\|thumb\|center\|'''Figure 2'' Flash separator\|450x500px]]		[[File:mwh3.png\|thumb\|center\|'''Figure 2'' Flash separator\|450x500px]]

	If a duty is added, the amount of heat added or taken away will determine the final separation. Either you can specify the duty or another parameter. If there are desired outlet compositions or flow rate from the system, it can be useful to specify one of those characteristics. After being specified, HYSYS will converge to a solution and the compositions of the outlet streams can be seen in the workbook.		If a duty is added, the amount of heat added or taken away will determine the final separation. Either you can specify the duty or another parameter. If there are desired outlet compositions or flow rate from the system, it can be useful to specify one of those characteristics. After being specified, HYSYS will converge to a solution and the compositions of the outlet streams can be seen in the workbook.

	[[File:mwh4.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]		[[File:mwh4.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]

			In figure 3, the composition of the vapor stream was specified and HYSYS was able to calculate the liquid composition as well as other flow and energy parameters.

	===3-Phase Separator===		===3-Phase Separator===

Mhantzmon: /* Flash Separator */

2015-03-02T02:39:15Z

Flash Separator

← Older revision		Revision as of 21:39, 1 March 2015
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	Then the feed can be connected to the separator, and outlet vapor and liquid streams can also be added. If the separator is left without a duty, then HYSYS will be able to solve for the outlet steams based on the VLE composition of the feed.		Then the feed can be connected to the separator, and outlet vapor and liquid streams can also be added. If the separator is left without a duty, then HYSYS will be able to solve for the outlet steams based on the VLE composition of the feed.
	[[File:~~mwh2~~.png\|thumb\|center\|'''Figure 2'' Flash separator\|450x500px]]		[[File:mwh3.png\|thumb\|center\|'''Figure 2'' Flash separator\|450x500px]]

	If a duty is added, the amount of heat added or taken away will determine the final separation. Either you can specify the duty or another parameter. If there are desired outlet compositions or flow rate from the system, it can be useful to specify one of those characteristics. After being specified, HYSYS will converge to a solution and the compositions of the outlet streams can be seen in the workbook.		If a duty is added, the amount of heat added or taken away will determine the final separation. Either you can specify the duty or another parameter. If there are desired outlet compositions or flow rate from the system, it can be useful to specify one of those characteristics. After being specified, HYSYS will converge to a solution and the compositions of the outlet streams can be seen in the workbook.
	[[File:~~mwh3~~.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]		[[File:mwh4.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]

	===3-Phase Separator===		===3-Phase Separator===

Mhantzmon: /* Flash Separator */

2015-03-02T02:39:01Z

Flash Separator

← Older revision		Revision as of 21:39, 1 March 2015
Line 36:		Line 36:

	Then the feed can be connected to the separator, and outlet vapor and liquid streams can also be added. If the separator is left without a duty, then HYSYS will be able to solve for the outlet steams based on the VLE composition of the feed.		Then the feed can be connected to the separator, and outlet vapor and liquid streams can also be added. If the separator is left without a duty, then HYSYS will be able to solve for the outlet steams based on the VLE composition of the feed.
	[[File:~~mwh1~~.png\|thumb\|center\|'''Figure 2'' Flash separator\|450x500px]]		[[File:mwh2.png\|thumb\|center\|'''Figure 2'' Flash separator\|450x500px]]

	If a duty is added, the amount of heat added or taken away will determine the final separation. Either you can specify the duty or another parameter. If there are desired outlet compositions or flow rate from the system, it can be useful to specify one of those characteristics. After being specified, HYSYS will converge to a solution and the compositions of the outlet streams can be seen in the workbook.		If a duty is added, the amount of heat added or taken away will determine the final separation. Either you can specify the duty or another parameter. If there are desired outlet compositions or flow rate from the system, it can be useful to specify one of those characteristics. After being specified, HYSYS will converge to a solution and the compositions of the outlet streams can be seen in the workbook.
	[[File:~~mwh1~~.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]		[[File:mwh3.png\|thumb\|center\|'''Figure 3'' Flash separator with duty\|450x500px]]

	===3-Phase Separator===		===3-Phase Separator===