Recently, the 2,500 Nm³/h trichlorosilane tail-gas hydrogen recovery unit for Ningxia Futai Materials Technology Co., Ltd.—for which Dakote Energy provided process technology, engineering design, supply of several key pieces of equipment, and commissioning guidance—was successfully commissioned at the first feed-in and has now passed the owner’s acceptance inspection. This project employs Dakote Energy’s domestically leading ambient-temperature dechlorination technology and a dedicated adsorbent to recover high-purity hydrogen, thereby supporting Ningxia Futai in achieving green and environmentally friendly production of a new type of precipitated silica while further reducing production costs and enhancing the company’s economic performance. The successful acceptance of this project is the result of meticulous work at every stage, marking another solid step forward for the company in its specialized field and serving as the best testament to Dakote Energy’s technical expertise and project management capabilities. Looking ahead, we will embrace more challenges, strive for excellence, and continue to deliver outstanding results! This unit utilizes our company’s independently developed technology: Polysilicon Tail-Gas Recovery Technology for Chlorosilanes and Hydrogen Key Features and Advantages: The technology is advanced and well-established, with a simple process flow and stable, reliable operation; The chlorosilane-specific adsorbent boasts a high separation factor, resulting in a high chlorosilane recovery rate; The recovered chlorides and hydrogen are of high purity, fully meeting the production requirements of polysilicon plants; Operating energy consumption is low, delivering strong economic benefits; The unit features a high degree of automation, enabling network-based remote monitoring and unattended operation; Compared with cryogenic separation methods, this approach requires lower capital investment, has a shorter construction period, and occupies a smaller footprint.

The rankings showcase strength, and the data reflect value. On December 29, the 2023 Sichuan Enterprise Technology Innovation Development Conference and the “Specialized, Refined, Distinctive, and Innovative” Enterprise Bank–Enterprise Matching Meeting, themed “Technological Innovation, Glory of Sichuan,” were held in Chengdu. At the event, the “Top 100 Sichuan Enterprises in Technological Innovation Development Capacity for 2023” and other lists were officially released. The scene of the 2023 Sichuan Enterprise Technology Innovation Development Conference and the “Specialized, Refined, Distinctive, and Innovative” Enterprise Bank–Enterprise Matching Meeting According to the “Announcement on the List of the Top 100 Sichuan Enterprises in Technological Innovation Development Capacity for 2023 and Other Lists” (Sichuan Enterprise Federation Document No. 4 of 2023), Sichuan DKT Energy Technology Co., Ltd. (a subsidiary of Hydrexia (China)) was honored with two prestigious awards: “Top 100 Sichuan Enterprises in Technological Innovation Development Capacity for 2023” and “Top 100 Sichuan Enterprises in Patent Invention Ownership for 2023.” In addition, Comrade Zhu Daixi, Chairman of the company, was awarded the title of “Outstanding Contributor to Technological Innovation among Sichuan Enterprises.” Plaque-awarding ceremony for representatives of the Top 100 Sichuan Enterprises in Technological Innovation Development Capacity Plaque-awarding ceremony for Outstanding Contributors to Technological Innovation among Sichuan Enterprises The list of the Top 100 Sichuan Enterprises in Technological Innovation Development Capacity is currently the only provincial-level ranking of its kind nationwide. According to the “Notice on Launching the Application Campaign for the ‘Top 100 Sichuan Enterprises in Technological Innovation Development Capacity’ for 2023” (Sichuan Enterprise Federation Document No. 1 of 2023), following the principles of fairness, impartiality, objectivity, and truthfulness, the selection process involved self-application by enterprises, automated system scoring, and expert review of multiple indicators, including corporate investment in innovation, development of an innovative talent pool, technological accumulation, construction of innovation platforms, technological output, and economic benefits from innovation, followed by public announcement. Through this rigorous evaluation, a platform for exchange and cooperation in enterprise technological innovation has been established, providing extensive technical and industrial integration services to the top 100 innovative enterprises, thereby fully demonstrating the achievements and experience of technological innovation among Sichuan enterprises. As a comprehensive service provider of customized solutions for hydrogen energy, carbon capture, and industrial gas separation and purification, DKT Energy is a high-tech enterprise integrating research, production, engineering design, and construction. Since its inception, the company has consistently adhered to the philosophy of “pioneering innovation, integrity and pragmatism, and scientific development.” Over the past 20 years, DKT has obtained numerous invention patents, been listed on Forbes China’s “Top 100 Most Promising Private Companies” for three consecutive years, and received many other qualifications and honors, including the national-level “Little Giant” designation for specialized, refined, distinctive, and innovative enterprises, the Sichuan Provincial Enterprise Technology Center, the Chengdu New Economy Gradient Cultivation Enterprise status, and the Pre-Unicorn Enterprise designation. DKT Energy will continue to increase its investment in and efforts toward technological innovation, leveraging innovation to drive high-quality enterprise development and advancing the research, development, and application of new technologies, processes, equipment, and materials for gas separation and purification. In 2023, DKT Energy achieved one success after another in technological innovation, talent cultivation, market expansion, and project construction. Over the past year, the entire DKT team worked together with unity and dedication, contributing their wisdom and delivering outstanding results. Looking ahead, DKT Energy will remain committed to the path of innovation, seize emerging opportunities, and usher in a new chapter in 2024!

On December 23, the PSA hydrogen purification EPC general contracting project for Shaanxi Runzhong Clean Energy Co., Ltd., undertaken by Dakote Energy, successfully completed its trial run. Attending the trial-run acceptance were Tan Hongliang, Deputy General Manager of Runzhong Energy; Yang Jun, Secretary of the Board of Directors; Liu Yajing, Deputy General Manager of Dakote Energy; and heads of relevant departments. This project employs Dakote Energy’s independently developed high-pressure pressure swing adsorption (PSA) technology for hydrogen purification, along with specialized high-purity hydrogen-grade adsorbents, to produce hydrogen from the tail gas of a methanol plant. The resulting hydrogen achieves a purity of 99.999% and meets the standards for fuel-cell-grade hydrogen. The system can recover approximately 2,300 Nm³ of hydrogen per hour—equivalent to about one ton of methanol—and is expected to increase annual output value by roughly RMB 15 million. This represents significant progress for Runzhong Energy in terms of resource recovery, clean utilization, energy conservation and emission reduction, and overall performance enhancement. The successful completion of the project trial run once again underscores Dakote Energy’s commitment to quality first, customer priority, and reputation above all else. Throughout the project implementation, Dakote Energy rigorously adhered to engineering design and construction specifications as well as quality management system standards, conscientiously enforced the safety production responsibility system, and ensured scientific and orderly construction. These efforts effectively guaranteed the safe, efficient, high-quality, and successful completion of the project, earning high praise from the client! This unit utilizes our company’s independently developed technologies: Pressure Swing Adsorption (PSA) Technology for Hydrogen Purification Key Features and Advantages: - Utilizes multiple proprietary, specially formulated adsorbents developed and manufactured in-house, delivering performance more than 30% superior to conventional adsorbents. - Employs an independently developed, patented PSA process that offers flexible operation, safe and stable performance, and a compact footprint. - Achieves high hydrogen recovery rates while maintaining low energy consumption and operating costs for hydrogen purification. - The hydrogen purification technology is mature, with extensive project experience and proven track record in both engineering design and operational performance.

Recently, Daying Dakote Chemical Technology Co., Ltd., a wholly owned subsidiary of Dakote Energy, successfully obtained certification under the Energy Management System standard, which is one of the essential requirements for achieving green factory status. Today, the energy crisis is becoming increasingly severe, and energy shortages have emerged as a major constraint on the sustained development of the national economy. As a key driver of energy conservation, emissions reduction, and sustainable development, enterprises must further align themselves with the prevailing trends of our times, cultivate a stronger sense of urgency and responsibility, and, based on their specific circumstances, clearly define their strategies, objectives, priorities, and implementation measures for sustainable development. In active response to the national “14th Five-Year Plan” policy on energy conservation and emissions reduction, Daying Dakote has embraced the concept of green manufacturing, established an energy management system, and developed an efficient and comprehensive energy-saving management model. The company continuously refines and optimizes its production processes: in the ion-exchange stage of molecular sieve production, tap water consumption has been reduced by approximately 16%, steam consumption by about 9%, electricity consumption for circulation pumps by roughly 50%, the volume of saline wastewater treated by around 45%, the volume of desalinated wastewater treated by about 18%, and the unit energy consumption per product by approximately 41%. These improvements have significantly lowered energy consumption throughout the production process, resulting in substantial savings on energy costs, enhanced competitive advantage within the industry, increased energy efficiency, and reduced environmental pollution and emissions—thereby fostering a positive public image.

Recently, the Phase II hydrogen chloride–methane gas purification unit for Ningxia Yongnong Biological Science Co., Ltd., for which Dakote Energy provided process technology, engineering design, complete equipment supply and installation, as well as commissioning guidance, was successfully commissioned at the first feed-in and has smoothly passed the owner’s acceptance inspection. This project employs Dakote Energy’s domestically leading ambient-temperature dechlorination technology, enabling the purified natural gas to be directly used as a feedstock for chemical synthesis, thereby supporting Ningxia Yongnong’s green and environmentally friendly production while reducing manufacturing costs. To date, leveraging its independently developed cutting-edge technologies and a well-established management and operational system, coupled with high-quality technical services, Dakote Energy has supplied multiple sets of hydrogen chloride–methane gas purification units to Ningxia Yongnong Biological Science Co., Ltd., earning high recognition from the client! This unit utilizes our company’s proprietary technology: Natural Gas C₂ Removal and Chloride Purification for Methane Production Technology Key features and advantages: The technology is advanced and mature, with a simple process flow and stable, reliable operation; The purified natural gas boasts high methane content and excellent recovery rates; It features low operating energy consumption and a high degree of automation.

Dakote Energy has successfully commissioned, on the first attempt and with full acceptance by the client, the cold hydrogenation pressure swing adsorption unit for the Phase I 50,000-ton-per-year high-purity polysilicon project at Xinjiang Jingnuo New Energy, which encompasses process technology, engineering design, equipment procurement, construction and installation, and startup and commissioning.