• Blending process using vacuum slops
• Blowing of air into vacuum bottom feed in blowing reactors

The technology of blending the vacuum slops obtained in refinery distillation tower with vacuum bottom feed is one of the ways to achieve the bitumen properties such as softening point and penetration to figures which meet specific standards, especially when the entering feed has higher viscosities. Required equipment of this process includes feed and product storage tanks , in-line mixer , transfer pumps and heating equipment.