www.chemengonline.com DECEmbEr 2014 VolumE 121, no. 12 Cover Story 36 Cover Story Improve Your Contingency Cost Estimates for More Realistic Project Budgets Reliable risk-analysis and contingencyestimation practices help to better manage costs in chemical process industries (CPI) projects of all sizes NewS 11 Chementator This methane-to-methanol process operates at low temperatures; Carbon mineralization process monetizes CO2 from fluegas; A new metals-recovery process moves to the pilot scale; New method for making beryllium-aluminum alloys expands accessibility; These batteries charge faster, last longer; Commercial debut for a new bioleaching process; and more 17 Newsfront Winning with Electrochemistry New electrode designs and process technology promise to reduce energy costs in traditional processes 23 Newsfront Advanced Coatings for New Applications New formulations allow the oil-and-gas and engineering industries to evolve, reduce labor costs and environmental concerns eNgiNeeriNg 17 34 Facts at Your Fingertips Distillation Column Modeling This one-page reference discusses the differences between equilibriumstage modeling of distillation columns and the non-equilibrium (ratebased) approach 35 Technology Profile n-Butanol from Lignocellulosic Feedstock This one-page profile outlines the production of n-butanol from corn stover via the ABE fermentation process 44 Feature Report Achieving Excellence in Energy Efficiency Effective energy-management programs provide motivation for behavioral, technical and business changes that improve efficiency 44 ChemiCal engineering www.Chemengonline.Com DeCemBer 2014 1 36http://www.chemengonline.com http://www.Chemengonline.Com