Chemical Processing - November 2007 - (Page 13) ALSO IN THIS SECTION: 14 Shells egg on hydrogen output IN PROCESS < > Hour-glass-shaped pore Figure 1. Larger adjoining cavities enhance transport of material to neck of pore, which offers good separation. Source: CSIRO. >> Economic Snapshot 80.0 79.0 78.0 77.0 76.0 75.0 74.0 73.0 72.0 Sept 06 Oct 06 Nov 06 Dec 06 Jan 07 Feb 07 Mar 07 Apr 07 May 07 June 07 July07 Aug07 55,000 54,500 54,000 53,500 $ Million 53,000 52,500 52,000 51,500 51,000 49,500 Shipments (NAICS S325) Capacity utilization 71.0 Shipments slipped a bit but capacity utilization remained on an upswing. Source: American Chemistry Council. www.chemicalprocessing.com lite and carbon membranes, which are fragile and brittle, the researchers claim. at this point, both self-supporting membranes and coatings on inorganic supports such as alumina and porous stainless steel are being considered; achieving defect-free coating is apt to be easier and simpler than for other materials, add the researchers. while conventional membranes typically have a life of three to five years, 10 years’ life is a possibility for membranes made of tr plastic, because of its chemical and thermal resistance, reckons benny Freeman, a professor of chemical engineering. the family of tr plastics that can be created, he says, span one to two orders of magnitude in gas permeability. Varying the precursor and treatment temperature, as well using dopants enable tuning of properties. the hour-glass shape of the pores (Figure 1) speeds transport of material into and out of the pores, while the narrow neck provides good separation, notes Freeman. selectivities for separations such as Co2/Ch4 and o2/n2 approach or match those of carbon molecular-sieve membranes. australia’s Commonwealth scientific and industrial research organization has been involved in analyzing the material and has posted an animation of the separation of carbon dioxide november 2007 • 13 % http://www.chemicalprocessing.com
Table of Contents Feed for the Digital Edition of Chemical Processing - November 2007 Chemical Processing - November 2007 Contents From the Editor ChemicalProcessing.com Field Notes In Process Energy Saver Compliance Advisor PAT isn't Standing Pat Pursue the Perfect Plant Eliminate Exchanger Tubing Troubles Portable Conveyor Speeds Paint Production Process Puzzler Plant InSites Equipment & Services Product Spotlight/Classifieds Ad Index End Point Chemical Processing - November 2007 Chemical Processing - November 2007 - Chemical Processing - November 2007 (Page Cover1) Chemical Processing - November 2007 - Chemical Processing - November 2007 (Page Cover2) Chemical Processing - November 2007 - Chemical Processing - November 2007 (Page 3) Chemical Processing - November 2007 - Chemical Processing - November 2007 (Page 4) Chemical Processing - November 2007 - Contents (Page 5) Chemical Processing - November 2007 - Contents (Page 6) Chemical Processing - November 2007 - From the Editor (Page 7) Chemical Processing - November 2007 - From the Editor (Page 8) Chemical Processing - November 2007 - ChemicalProcessing.com (Page 9) Chemical Processing - November 2007 - ChemicalProcessing.com (Page 10) Chemical Processing - November 2007 - Field Notes (Page 11) Chemical Processing - November 2007 - Field Notes (Page 12) Chemical Processing - November 2007 - In Process (Page 13) Chemical Processing - November 2007 - In Process (Page 14) Chemical Processing - November 2007 - In Process (Page 15) Chemical Processing - November 2007 - In Process (Page 16) Chemical Processing - November 2007 - Energy Saver (Page 17) Chemical Processing - November 2007 - Energy Saver (Page 18) Chemical Processing - November 2007 - Compliance Advisor (Page 19) Chemical Processing - November 2007 - PAT isn't Standing Pat (Page 20) Chemical Processing - November 2007 - PAT isn't Standing Pat (Page 21) Chemical Processing - November 2007 - PAT isn't Standing Pat (Page 22) Chemical Processing - November 2007 - PAT isn't Standing Pat (Page 23) Chemical Processing - November 2007 - PAT isn't Standing Pat (Page 24) Chemical Processing - November 2007 - PAT isn't Standing Pat (Page 25) Chemical Processing - November 2007 - PAT isn't Standing Pat (Page 26) Chemical Processing - November 2007 - Pursue the Perfect Plant (Page 27) Chemical Processing - November 2007 - Pursue the Perfect Plant (Page 28) Chemical Processing - November 2007 - Pursue the Perfect Plant (Page 29) Chemical Processing - November 2007 - Pursue the Perfect Plant (Page 30) Chemical Processing - November 2007 - Pursue the Perfect Plant (Page 31) Chemical Processing - November 2007 - Pursue the Perfect Plant (Page 32) Chemical Processing - November 2007 - Eliminate Exchanger Tubing Troubles (Page 33) Chemical Processing - November 2007 - Eliminate Exchanger Tubing Troubles (Page 34) Chemical Processing - November 2007 - Eliminate Exchanger Tubing Troubles (Page 35) Chemical Processing - November 2007 - Eliminate Exchanger Tubing Troubles (Page 36) Chemical Processing - November 2007 - Eliminate Exchanger Tubing Troubles (Page 37) Chemical Processing - November 2007 - Portable Conveyor Speeds Paint Production (Page 38) Chemical Processing - November 2007 - Portable Conveyor Speeds Paint Production (Page 39) Chemical Processing - November 2007 - Process Puzzler (Page 40) Chemical Processing - November 2007 - Process Puzzler (Page 41) Chemical Processing - November 2007 - Plant InSites (Page 42) Chemical Processing - November 2007 - Equipment & Services (Page 43) Chemical Processing - November 2007 - Equipment & Services (Page 44) Chemical Processing - November 2007 - Product Spotlight/Classifieds (Page 45) Chemical Processing - November 2007 - Product Spotlight/Classifieds (Page 46) Chemical Processing - November 2007 - Product Spotlight/Classifieds (Page 47) Chemical Processing - November 2007 - Product Spotlight/Classifieds (Page 48) Chemical Processing - November 2007 - Ad Index (Page 49) Chemical Processing - November 2007 - End Point (Page 50) Chemical Processing - November 2007 - End Point (Page Cover3) Chemical Processing - November 2007 - End Point (Page Cover4)
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