Guizhou Qixin Industrial Co., Ltd., the Owner of TSA Purification Plant of Synthetic Ammonia Equipment for Coal Deep Processing and Comprehensive Utilization Project, awarded the EPC Contractor DKT Energy the honorary title of “Advanced Company in Project Civilized Construction in 2023” at the 2023 Annual Commendation Conference of the Project Department. DKT Energy’s construction and installation were recognized by the Owner.

DKT Energy will continue to devote all its efforts to the project construction, comprehensively manage the project quality, safety and progress, and ensure the successful completion of the project construction task.

DKT Energy’s self-developed Temperature Swing Adsorption (TSA) for removal of tar, benzene and naphthalene and core adsorbent products are adopted in this project. The development of this technology has experienced many technological innovations, especially in 2017, the third generation of new DKT-30D/B special adsorbent for benzene and naphthalene removal by temperature swing adsorption was successfully developed, and it was successfully applied in many projects in coking industry, making a major breakthrough in purification index and service life guarantee. At present, the technology and core products have been used in many similar projects such as Shaanxi Longmen Coking, Xinjiang Xinhuixia, Shanxi Woneng, Inner Mongolia Black Cat (Phase I and II), Shanxi Yaxin, Shanxi Yixin, Shanxi Tongzhou, Anyang Shunli, Donghai New Energy, Inner Mongolia Guangju, ZhongjinTaihang, Inner Mongolia Hengkun, Guizhou Meijin (Phase I and II) and Guizhou Qixin.

DKT Energy’s self-developed technology is adopted:

Temperature Swing Adsorption (TSA)

Technical features and advantages:

- Reasonable process design is carried out, and single-stage or multi-stage adsorption beds are selected according to the impurity composition and content of gas to ensure ideal purification effect;

- Reasonable design of adsorption tower, especially the tower diameter ratio, gas flow distribution and mechanical water separation, so as to prevent the occurrence of unfavorable phenomena such as bias flow, channel flow and mechanical water being brought into the adsorbent bed, and to ensure the efficient utilization of adsorbent;

- The third-generation special adsorbent for temperature swing adsorption, which is independently developed and improved by DKT, can effectively remove the impurity components (tar, naphthalene, benzene, etc.) in the feed gas. The adsorbent has low density, high pore volume, large specific surface area and larger adsorption capacity, and the desorption is easier and more complete, which can ensure the long-term safe and stable operation of the plant.