Solvents life cycle assessment

Full life cycle assessment of solvent. Does its manufacture use more noxious materials than it replaces What is the ultimate environmental fate of the solvent ... 

FIGURE 18.12 System model for solvent assessment using the life cycle assessment method.14... 

Jimenez-Gonzalez, C., A. Curzons, and V. Cunningham. 2004. Expanding GSK s solvent selection guide-application of life cycle assessment to enhance solvent selections. J. Clean. Tech. Environ. Policy 1 42-50. 

The environmental issues are providing an exciting opportunity for R D to make a significant contribution, not only to the health of the local community but also the financial health of the company. Some of the major areas for study by R D are catalytic solutions, solvent replacement, novel reactors, such as microreactors, as well as considering the product design carrying out life cycle assessments and the use of alternative feedstocks. This area has become known as Green Chemistry [D-6]. 

Figure 1.2 Life cycle assessment of the treatment options (incineration and distillation) for 26 common laboratory solvents. [Reprinted with permission from Green Chem., 2007, 9, 927-934. Copyright 2007 The Royal Society of Chemistry.]...

C. Jimenez-Gonzalez, A. D. Curzons, D. J. C. Constable and V. L. Cunningham, Expanding GSK s Solvent Selection Guide - Application of Life Cycle Assessment to Enhance Solvent Selections, Clean Techn Environ Policy, 7(1), 42-50 (2004). 

Process design the report includes sections that discuss the use of techniques such as risk and life-cycle assessments to provide a holistic view of a product s environmental impact. Examples of environmentally adapted products include solvent-free lacquers, biologically degradable lubricants and catalysts for VOC and NOx reduction. 

Figure 13.2 Generic flowsheet for the solvent-based postcombustion CO2 capture processes including the main life cycle assessment-related issues.

Life-cycle assessment of multistep mfinamide synthesis from isolated reactions in a batch to a continuous microreactor network is reported [148]. A continuous solvent- and catalyst-free flow process utilizing relatively inexpensive and green dipolarophile, ( )-methyl 3-methoxyacrylate, was shown. Here, benzyl chloride, instead of very reactive benzyl bromide, was employed for azide formation, which was produced utilizing benzyl alcohol and hydrogen chloride. 

The extraction of raw materials, manufacturing processes, use/reuse, and disposal represent the basic stages of a solvent s life cycle. Each stage of a solvent s life cycle generates a variety of environmental burdens. Environmental-impact evaluation qualitatively assesses the life-cycle stages for chemical solvents. The goal of this evaluation is to select environmentally preferable solvents that can best minimize these life-cycle impacts. 

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