This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Program Notes abs Eight varieties of Biomass feedstocks are available as inputs to the Wood-to-Ethanol-Power plant = User Defined Input. Default Values are provided. = User Defined Input, subject to experimental determination. Default Values are provided. = Calculated Value. Should not be changed by the User. = Calculated Interim Result. Should not be changed by the User. = Calculated Major Result. Should not be changed by the User. = Heat Balance Calculation User defines the Biomass Input factors in terms of Quantity, % Bark, Moisture (or can accept Default Suggestions) Four treatments of the Biomass are available by clicking on the Cel next to the specific biomass. May use different Treatments for differen 0 = storage only 1= "Level 1" or relatively mild prehydrolysis with water 2= "Level 2" or more severe prehydrolysis with water 3= "Level 3" or most severe prehydrolysis with water 4= "Level 4" undefined but available for future development Each variety of Biomass characterized in terms of "Ultimate Analysis" on "As Received" Basis. Values suggested are "Defaults" subject to Impact of Storage: Values suggested are "Defaults" subject to experimental determination Stored Biomass is subjected to a mild Prehydrolysis: mass and composition are estimated for "Residue" and "Extract" based on Default prehydrolysis spl Stored Biomass is subjected to a more severe Prehydrolysis: mass and composition are estimated for "Residue" and "Extract" based on D Stored Biomass is subjected to most severe Prehydrolysis: mass and composition are estimated for "Residue" and "Extract" based on Def Graphical representation of the assumed conversions Annual volume of Residue, Extract and Ethanol produced from Extract (if any), and power generated, based on selections made in the "Bi Material and Energy Balance around the boiler, based on the "Active Case" inputs Power generated based on the boiler input design characteristics and the steam generated as calculated in the "Steam" area. Material Balance of Process from Digester to Distil ation Section. Applicable only in Biorefining Cases. Heat and Material Balance of Process from Digester to Distil ation Section. Applicable only in Biorefining Cases. Financial Analysis of the Base Case vs The Active Case conditions, Biomass Input Quantities Biomass Input Properties Level 0 Pretreatment Level 1 Pretreatment Level 2 Pretreatment Level 3 Pretreatment Conversion Summary Active Case Steam Power Biorefinery Flowsheet Heat Balances Financial_Analysis Biomas Input Quantities User enters the volumes and moisture content of the Biomas types or ac epts the Defaults Select the ap ropriate Proces Option for the individual forms of Biomas by using the drop-down list Alarms An ual Average Basis None Biomas Inputs % Bark % of Total Whole Stem Loblol y Pine 12%- 0% 50% Biomas stored and then burned 0%- 0% 50% 1 Whole Stem Hardwo d 14%- 0% 50% 2 0%- 0% 47% 3 90%- 0% 45% 4 Reserved for future use 90%- 0% 57% 15% 280,0 0 50% 48% Biomas purchased Moisture Los in Storage...
View Full Document
This note was uploaded on 08/22/2011 for the course WPS 417 taught by Professor Kirkman during the Spring '11 term at N.C. State.
- Spring '11