July 2015 CEP Preview


Selecting Sensors for Safety Instrumented Systems

A plant’s safety instrumented system (SIS) is critical in preventing process safety incidents. Use this guide to help choose the proper sensors for your plant’s SIS.

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When Mixing Matters: Choose Impellers Based on Process Requirements

The power number is one consideration in impeller selection. Other important factors include bulk flow, turbulence at the impeller, and mixing conditions at the bottom of the vessel and at the liquid surface.


Synthetic Biology: Putting Together the Pieces

Synthetic biology represents a new way of 
building biological systems via engineering tools and principles. Genetic components and pathways will be created to reprogram organisms, endowing them with novel functions for a wide range of applications.


Do Your Due Diligence

Use this guidance to conduct comprehensive due diligence assessments and help ensure your acquisitions — of equipment, technologies, facilities, or companies — are operationally and technologically successful.


The Chemicals Industry in South Africa

Built upon the nation’s abundant coal reserves, South Africa’s chemicals industry spent much of the 20th century isolated from world trade. The abolishment of apartheid opened doors to its full participation in global markets.


  • Inks from Silk Show Biomedical Promise
  • Activated Carbon Gets a Designer Label
  • Graphene Coating Promises to Improve Condenser Efficiency
  • Solar Materials Self-Assemble for Lengthy Energy Storage
  • Process Model Puts a New Spin on Silk
  • Shades Go Out the Window


  • AIChE Journal Highlight: Bridging the Scale Gap to Model Heterogeneous Catalytic Reactions
  • Catalyzing Commercialization: Designer Microbes Make Green Surfactants
  • Process Safety Beacon: Know When to Leave
  • Material Matters: Guidelines Aim to Reduce Failures
  • Patent Update: What Constitutes Inducement to Infringe a Patent?
  • What’s New
  • Books
  • Product Digest: Valves
  • Calendars
  • Institute News:
    • AIChE Election Candidate Platforms
    • Your AIChE Membership — Technical Divisions and Forums
    • Member News

The July 2015 issue of CEP is now available online. AIChE members receive access to CEP, including a searchable archive of issues dating back to 2001, online at http://www.aiche.org/cep.