News
News
In May 2025, our company DOING successfully signed a 30T mazut oil refining contract with a Kazakhstan customer. This meaningful deal is the result of our close cooperation and careful follow-up for more than a year.

DOING waste oil refining plant components
Kazakhstan customers have abundant mazut oil raw materials and have been looking for reliable solutions to produce high-quality diesel. The quality of the final product is always their top concern. After extensive research and evaluation, they finally chose DOING's advanced waste oil refining technology. After pretreatment-heating-refining-cooling-decolorization-deodorization-fine filtration, we can extract non-standard diesel with bright color and no bad odor from mazut. This process adopts a new solid catalyst design. This process has a high degree of automation and good refining effect. The proportion of purified diesel products is as high as 85%.

Waste oil refining plant working process
Throughout the process before signing, DOING provided excellent service. We first deeply understand the customer's specific needs for refining and the characteristics of their raw materials. Our team of experts provides tailor-made mazut oil refining technology consultation and answers every question and concern of the customer. We demonstrate our commitment to quality and reliability as a waste oil refining manufacturer.
From the initial contract to subsequent delivery, we are committed to ensuring that our customers have a seamless experience. We provide comprehensive support, including detailed documentation, logistics coordination, and a clear installation and commissioning schedule. Our after-sales service team is also on call, ready to assist in solving any problems that may arise during the operation of the waste oil refining plant.

DOING waste oil refining plant manufacturer
The customer's decision to choose our 30T mazut oil refining plant is not only due to our advanced waste oil refining technology but also a recognition of our excellent service quality. We are committed to providing the customer with the best service and helping them achieve success in their mazut oil refining business.
DOING Company will continue to uphold our commitment to quality and service, and strive to create more value for our customers worldwide.
Contact DOING experts and learn how we can service your needs.