Material Balances for Converting Biomass to Fuels

Upgrading biomass feeds normally results in signficant weight losses. * To upgrade sugars to fuel, remove excess oxygen * Removed oxygen “pulls” Hydrogen (H) and Carbon (C) with in in form of H2O and CO2 * Maximum Yields depend on starting feeds and ending products, but not path chosen . Example of Balance Reaction Sugar…

What Material goes in….Comes out

A Focus on Yields and Raw Material Costs. * Most biofuel and commodity chemical companies profit margins depend highly on the margin between one commodity feed stock and one commodity product. * First focus on Maximum Theoretical Yields & resulting Minimum Product cost. (Raw Material Cost ($/lb))/(Theoretical Yield)=(Minimum Product Cost ($/lb)) *Later focus on energy,…

Due Diligence for Chemicals & Biofuels

A systematic approach to analysis. 1-Does process make commercial sense or pass a “smell test”?? 2-Does process show that: what material goes in…..comes out? 3-Does process show that: you get less chemical energy out than goes in? 4-Are there any Business Model Disconnects? 5-Gibbs Free Energy Balances. 6-Detailed energy balances for Unit Operations. 7-Does design…

Smell Test #2: Sugar to Fuels

Does this investment pass the “Smell Test”? *** A process converts 2 lbs of sugar into biofuels. (it also adds in 1 lb of methane.) Do you invest? ***Equivalent Analogy: I offer to buy both of us lunch an McDonalds. (While there, I pull $12 out of your wallet that “helps” pay for lunch.) Analysis:…

Smell Test # 1: CO2 to fuels

Does this investment pass a “Smell Test”? *** A process converts CO2 to a liquid fuel for cars by a new company. It also co-feeds to the reactor “a little bit” of methane. *** Equivalent Analogy: I have a process that converts 10 pounds of gravel to 8 pounds of gasoline…….wow……impressive……. The process also co-feeds…

Chrome-Iron Flow Battery Design

Flow batteries are one emerging technology for storage of electrical energy. Development of large-scale flow batteries would enable storage of electricity created at off-peak times (mostly at night) and then supplied to the grid at peak (~noon-4pm) hours. Sources like wind generators or large electrical utility plants (that cannot totally shut down off-peak) would charge…

Coal Pyrolysis Project

Requested Consulting: Process design review of coal pyrolysis project for investor group. Design and Business Issues: 1) Created a material balance showed company claimed process had over 100% yield of widely promoted product and claimed yield was probably >20% higher than what technology could produce. 2) Marketing claimed carbon product may get sold into drinking…

Biologic process converting light and CO2 into specialty chemical

Requested Consulting: Create model and basic economic evaluation for process converting sunlight and CO2 into bio-based chemical for patent pending process. Scope: Client needed material & energy balance and corresponding capital cost estimate for process. Results: 1) Provided model for parts of material and energy balance that drive economics. 2) Converted lab data for biologic…