南大分尸

南大分尸
漂白厂规模控制最佳实践(亚太地区)
南大分尸

总览

日期南大分尸 :  2020年11月12日

时间中国标准时间上午9:00

持续时间1小时

语言英语

网络研讨会摘要

Using chlorine dioxide as a delignification agent in the first stage (D0?Stage) of a bleach plant is a common practice which requires a relatively high pH (2.5 – 4.5) to achieve maximum delignification and bleaching efficiency. These operating conditions often result in an increased risk of developing either barium sulphate and/or calcium oxalate scale, depending on the operating pH range. This can lead to significant production losses, extra maintenance costs, high bleaching chemical costs and quality issues.

Through process modification, many mills can reduce or eliminate calcium oxalate scale formation by running the D0?Stage at a relatively low pH. However, higher costs can be incurred due to higher levels of acid and caustic. For mills with higher barium levels, lowering the pH in the first chlorine dioxide (D0?Stage) will also increase the risk of barium sulphate scale, particularly if the mill uses spent acid from chlorine dioxide generation. For mills having limited water supply or using water with high hardness, calcium oxalate issues can be even more problematic when those mills operate at the higher end of the pH range (3.5 – 4.5).

In this Webinar, Dr. Michael Wang will discuss how several mills have improved their bleach operation efficiency, reduced down-time and decreased maintenance costs with a scale control program that manages both barium sulphate and calcium oxalate scale. The program provides additional benefits by allowing the D0?Stage to operate at a slightly higher pH, resulting in incremental savings in caustic and acid costs.

在2020年11月11日东部标准时间上午9:00 /欧洲中部时间下午3:00的网络研讨会上获得相同的宝贵见解。Register for the November 11?session.

讲者

托马斯·海登.jpg

托马斯·海登

全球市场总监 –纸浆

Tom在制浆和造纸行业拥有超过25年的特种化学经验。他于1992年以销售专业人员的身份加入Solenis,随后担任销售管理和市场营销职务。 Tom是威斯康星大学史蒂文斯分校的制浆造纸工程师。

Pulp-NA-Michael-Wang.jpg

王敏博士

高级应用项目经理 –纸浆

Michael拥有数个学位,其中包括北卡罗来纳州立大学的木材和纸科学专业的博士学位。他有40多年了’ 在制浆造纸行业研究,教学和工艺开发方面的经验。他发表了20多篇论文,并且拥有多项专利。他在流程修改,降低成本,流程建模和行业培训方面非常活跃。

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