www.chemengonline.com OctOber 2014 VOlume 121, nO. 10 Cover Story 34 Cover Story Part 1 Pressure Transmitter Selection A pressure transmitter measures the pressure of a gas or liquid and relays that information back to a control system. This differentiates it from a pressure gage, which gives only a local indication and does not communicate 41 Cover Story Part 2 Pressure Transmitter Basics: DP Transmitters How a variety of process parameters can be measured with differential pressure (DP) transmitters NewS 11 Chementator The commercial debut of a methanol-to-gasoline process; Combine wastewater treatment with biofuel production; An energy-saving bioreactor for wastewater treatment; A step forward for a new titanium leaching process; This solar cell promises to be less expensive; and more 19 Newsfront Rethinking Intellectual Property Policies Shifts in university policies surrounding IP in industry-funded research could mean expanded opportunities for CPI companies 23 Newsfront Better Filtration for the Bottom Line Advanced filtration methods reduce costs and increase productivity eNgiNeeriNg 32a Facts at Your Fingertips Forces Acting on a Gasket This one-page reference helps readers review the major forces that act on gaskets in piping and vessels, and the relevant equations 33 Technology Profile Production of Hydrogen Cyanide This onepage profile describes the Andrussow process for producing the key precursor HCN from ammonia, natural gas and air 45 Feature Report Part 1 Reactive Chemistry in the CPI Improper handling of reactive chemicals can result in catastrophic industrial disasters and a clear understanding of these materials is essential for safe process-design practices 53 Feature Report Part 2 The Next Step Change in Process Safety Leveraging the convergence of operational and information technologies can aid in minimizing risk 45 ChemiCal engineering www.Chemengonline.Com oCtober 2014 1 23 34 19http://www.chemengonline.com http://www.Chemengonline.Com