By James H. Clark, Duncan Macquarrie
Sustainable improvement is now authorized as an important target for attaining societal, fiscal and environmental goals. inside this chemistry has an essential function to play. The chemical is winning yet commonly luck has come at a heavy fee to the surroundings. The problem for chemists and others is to improve new items, tactics and companies that in attaining societal, fiscal and environmental merits. This calls for an process that reduces the fabrics and effort depth of chemical procedures and items; minimises the dispersion of damaging chemical compounds within the surroundings; maximises using renewable assets and extends the sturdiness and recyclability of goods in a fashion that raises business competitiveness in addition to enhance its tarnished photograph.
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Additional info for Handbook Of Green Chemistry And Technology
Is a function of the hazard and the exposure to that hazard. g. the toxic effects of MIC) the risk has been controlled by reducing exposure through protective equipment, safety devices and other control methods. The basic concept of inherently safer design is that instead of controlling exposure it is the hazards that are, as far as possible, designed out of the process—the ‘what you don’t have can’t harm you approach’. In the Bhopal case such a design would have avoided the storage of both MIC and phosgene.
1999, 1, G15. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 27 Stankiewick, A. , & Moulijn, J. A. Chem. Eng. , 23. , & John, A. Chem. , 66. Victor, D. Nature, 1998, 395, 837. Armor, J. N. J. Appl. Catal. A: General, 2000, 194/195, 3. de Adams, C. Chem. , 1999, 19, 740. Muller, H. In Ullmans Encyclopedia of Industrial Chemistry, 5th edn, Vol. 25. VCH, Wurzburg, 1994, pp. 635–703. Brown, H. , Hamel, B. , & Hedman, B. A. Energy Analysis of 108 Industrial Processes.
14 Adapted from Ref. 37. ) example where process intensiﬁcation has led to signiﬁcant improvements in throughput overcoming the need for additional plant to be built. Formation of a gel by-product necessitated frequent shut down of a Dow Corning process involving a gas/liquid reaction in a packed column . Owing to increased demand, the company were faced with building another plant at a cost of some US$5 million or making signiﬁcant improvements in productivity. The key problems were identiﬁed as poor gas–liquid mixing and mass transfer, which were readily solved at a cost of US$22 000 by adding a static mixer.
Handbook Of Green Chemistry And Technology by James H. Clark, Duncan Macquarrie