Granulation of Lignin

Domtar公司在加拿大拥有并经营四家化学纸浆厂。木质素是制浆过程中的副产品，可以为工厂提供能量，但在能源、材料和化工行业也有许多潜在的应用，如粘合剂、农用化学品、吸附剂、涂料、分散剂、燃料添加剂、粘结剂和树脂。这些应用尚未完全实现，部分原因是在处理木质素方面遇到了挑战：所生产的木质素是一种极细的粉末，粉尘非常多，具有粘聚性，对热敏感，并且表现出极差的流动性。因此，它很难储存，也不容易均匀和连续地输送到许多可能的应用所需的加工设备中。

Domtar Corporation owns and operates four chemical pulp mills in Canada. Lignin is a by-product of the pulping process that can provide energy for the mills, but also has many potential applications in the energy, materials and chemical industries as adhesives, agricultural chemicals, adsorbents, coatings, dispersants, fuel additives, binders and resins. These applications have not yet been fully realized partly due to challenges in handling the lignin: the lignin that is produced is an extremely fine powder that is very dusty, cohesive, thermally sensitive, and exhibits extremely poor flowability. It is therefore difficult to store and is not easy to feed uniformly and continuously into equipment required to process for many of its possible applications.