Template:TCESolventExtraction Tab Page

Unit Type: {{{TCE}}}SolventExtraction - The first tab page in the access window will have this name.

Tag (Long/Short)	Input/ Calc	Description
Tag	Display	This name tag may be modified with the change tag option.
Condition	Display	OK if no errors/warnings, otherwise lists errors/warnings.
ConditionCount	Display	The current number of errors/warnings. If condition is OK, returns 0.
GeneralDescription / GenDesc	Display	This is an automatically generated description for the unit. If the user has entered text in the 'EqpDesc' field on the Info tab (see below), this will be displayed here. If this field is blank, then SysCAD will display the UnitType or SubClass.
Requirements
On	Tick box	If this is enabled then the unit will be in full operational mode. If this is disabled, then unit will be 'inoperative', as described in Inoperative Mode.
SeparationMethod / SeparMethod	Density	The user selects the Density of Separation. All species (INCLUDING solids) that have a density LESS than this density will report to the organic outlet. All species with a density GREATER than this density will report to the Aqueous outlet.
	IndPhase to Organic	The user selects the Individual liquid Phase(s) (usually (o)) that reports to the organic phase. All solids and other liquid phases will report to the Aqueous phase.
SeparDensity / SeparRho	Input	Visible if SeparMethod = 'Density'. The required separation density. This must be a value between the density of the aqueous and organic streams. Note: The density of water is a function of temperature, and is often less than 1000 kg/m³; therefore it is safer to specify a separation density below 950 kg/m³.
List of Liquid Individual Phases	Tick Boxes	Visible if SeparMethod = 'IndPhase to Organic'. The user must select one or more Individual liquid phases that will report to the Organic outlet. Normally, the user will select the 'o', or 'org' phase. All other liquid phases will report to the Aqueous outlet. (The user defines the Individual phase for each species in the Species Database. Normally organic species are defined to have an individual phase of 'o', or 'org'. Please see Individual Phase Label for information on how to change the Individual Phase of a species)
Entrainment	None	No entrainment.
	Feed Loss	The Aqueous/Organic loss is defined as a percentage of the aqueous (or organics) in the unit after all the reactions have been completed. NOTE: This is feed to the separator section, not the mixer section.
	Product Fraction	The Aqueous/Organic loss is defined as mass concentration in the outlet stream, normally in ppm.
AqueousLossReqd / AqsLossReqd	Input	Visible with the Feed Loss Entrainment method. The mass fraction of Aqueous liquid in the unit lost to the Organic product stream. Note that solids in the Aqueous phase will also report to the Organic stream when an entrainment value is specified.
OrganicLossReqd / OrgLossReqd	Input	Visible with the Feed Loss Entrainment method. The mass fraction of Organic liquid in the unit lost to the Aqueous product stream.
AqueousInOrgReqd / AqsInOrgReqd	Input	Visible with the Product Fraction Entrainment method. User specified the mass concentration of aqueous (normally in ppm) in the organic outlet stream. Note that solids in the Aqueous phase will also report to the Organic stream when an entrainment value is specified.
OrganicInAqsReqd / OrgInAqsReqd	Input	Visible with the Product Fraction Entrainment method. User specified the mass concentration of organics (normally in ppm) in the aqueous outlet stream.
OperatingP - NOTE: this pressure is applied to the (combined) feed, before sub-models (if any).
Method	AutoDetect	If there are any liquids AND no vapours present in the feed, outlet streams will take the highest pressure of the feeds. Else (e.g. some vapours present) outlet streams will take the lowest pressure of the feeds.
	LowestFeed	Outlet streams will take the lowest pressure of the feeds.
	HighestFeed	Outlet streams will take the highest pressure of the feeds.
	Atmospheric	Outlet streams will be at Atmospheric Pressure. The atmospheric pressure is calculated by SysCAD based on the user defined elevation (default elevation is at sea level = 101.325 kPa). The elevation can be changed on the Environment tab page of the Plant Model.
	RequiredP	Outlet streams will be at the user specified pressure.
IgnoreLowMassFlow / IgnoreLowQm	Tick Box	This option is only visible if the AutoDetect, LowestFeed or HighestFeed methods are chosen. When calculating the outlet pressure and temperature of the tank, SysCAD will ignore the low flow feed streams should this option be selected. The low flow limit is set in the field below.
LowMassFlowFrac / LowQmFrac	Input	This field is only visible if the IgnoreLowQm option is selected. This is the amount any stream contributes to the total flow. For example, if the total feed to the tank is 10 kg/s, and this field is set to 1%. Then any feed streams with less than 0.1 kg/s will be ignored in the pressure calculations.
PressureReqd / P_Reqd	Input	This field is only visible if the RequiredP method is chosen. This is user specified pressure.
Result	Calc	The actual pressure used for the sum of the feeds which will also be the outlet pressure (unless further model options change the pressure).
Options
ShowQAqFeed	Tick Box	QAqFeed and associated tab pages (e.g. Sp) will become visible if this is enabled. These tabs will show the properties of the combined aqueous feed stream to the Unit. Note this is before any premixing of entrained material from the organic feed.
ShowQOrgFeed	Tick Box	QOrgFeed and associated tab pages (e.g. Sp) will become visible if this is enabled. These tabs will show the properties of the combined organic feed stream to the Unit. Note this is before any premixing of entrained material from the aqueous feed.
ShowQFeed	Tick Box	QFeed and associated tab pages (e.g. Sp) will become visible if this is enabled. These tabs will show the properties of the combined feed stream to the Unit. These values are BEFORE any evaluation blocks such as reaction or EHX.
Operating Line
Organic/Aqueous / OARatio	Calc	The calculated volumetric ratio of Organic to Aqueous liquid entering the unit.
Product Conditions
AqueousInOrg / AqsInOrg	Calc	The mass concentration aqueous in the organic outlet stream.
OrganicInAqs / OrgInAqs	Calc	The mass concentration organic in the aqueous outlet stream.
AqueousLosses / AqsLosses	Calc	The mass fraction of feed aqueous loss to the organic outlet stream.
OrganicLosses / OrgLosses	Calc	The mass fraction of feed organic loss to the aqueous outlet stream.
OutletT.Iterations	Calc	The number of iterations required for outlet temperature calculations to converge.