Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
Page 19
Page 20
Page 21
Page 22
Page 23
Page 24
Page 25
Page 26
Page 27
Page 28
Page 29
Page 30
Page 31
Page 32
Page 33
Page 34
Page 35
Page 36
Page 37
Page 38
Page 39
Page 40
Page 41
Page 42
Page 43
Page 44
Page 45
Page 46
Page 47
Page 48
Page 49
Page 50
Page 51
Page 52
Page 53
Page 54
Page 55
Page 56
Page 57
Page 58
Page 59
Page 60
Page 61
Page 62
Page 63
Page 64
Page 65
Page 66
Page 67
Page 68
Page 69
Page 70
Page 71
Page 72
Page 73
Page 74
Page 75
Page 76
Page 77
Page 78
Page 79
Page 80
Page 81
Page 82
Page 83
Page 84
Page 85
Page 86
Page 87
Page 88
Page 89
Page 90
Page 91
Page 92
Page 93
Page 94
Page 95
Page 96
Page 97
Page 98
Page 99
Page 100
VERACEL CELULOSE WORLD PULPPAPER32 Things improved dramatically with zero capital investment and I became a big believer FINE TUNING BIG GAINS FROM USING NEW TOOLS ago in Brazil called OPP Optimisation pioneer in adopting this tool according to Kleverson Figueiredo OPP Specialist OPP is a combination of sophisticated software methodology knowledge database on-site specialists and processequipment knowledge from project in 2007 Medeiros recalls was to optimise the DD Washers in the bleach plant. As a result of the work Veracel increased production from 2900 to dramatically with zero capital investment and I became a big believer Medeiros says. perfectly we moved on to the other three washers in bleaching and then the four in the brownstock area. In the following years we have developed new algorithms and control strategies for chemical consumption temperature better control each stage in the for a variety of smaller and easily measurable projects to reduce chemicals increase electrical generation optimise the recovery boiler project for electricity generation had the control loops and improved the programming using multi-variable controls and fuzzy logic to increase the electrical output from the boiler and turbo-generator plant Figueiredo range of about three million dollars per year. a half-percentage point here and a half-point there adds up to real money at the end of the year. ALWAYS SOMETHING TO IMPROVE UPON powerful than it was eight years ago when we started Medeiros says. techniques. I think that we are on the leading edge of using these tools but eventually they will be used in all pulp mills. In his 31 years of working in pulp mills are doing things today that I could not savings of chemicals the improvements in safety the energy gains these are all important things to keep Veracel ahead. Medeiros and his team have some ideas about what they will do next including a couple of large projects that may take up to a year to prove in simulation before operators and getting their opinions and feedback so that we can improve he human knowledge is incredibly important. Figure 5. I can say is the millwide contract Veracel had the best results in the companys history. Ari Medeiros Veracel COO Figure 4.