DKT Energy Technology
National High-Tech Enterprise; Sichuan Provincial Enterprise Technology Center; Class B Qualification For Chemical Engineering Design; Class A Qualification For Environmental Pollution Prevention And Control; Pressure Pipeline GC1 Design Qualification
Carbon capture and utilization technologies for lime kiln gas, flue gas, fermentation gas, and other sources
Release Date:
2021-12-21
Source:
With the steady advancement of policies related to China’s goals of peaking carbon emissions by 2030 and achieving carbon neutrality by 2060, the demand for carbon capture, utilization, and storage (CCUS) technologies targeting various CO₂-containing gas streams in the industrial sector has increased markedly. Carbon-dioxide-rich gas streams such as lime-kiln off-gas, flue gas, and fermentation gas typically operate at low pressures. In response, DakoTech has independently developed two proprietary technologies for the separation and recovery of CO₂: first, a low-pressure CO₂ pressure-swing adsorption (PSA) recovery technology that can purify 8–13 vol% of CO₂ from the feed gas to above 95%, with a CO₂ recovery rate of 70–90%; second, a composite organic-amine absorption-based CO₂ separation technology that uses MEA as the primary solvent, supplemented with active amines, antioxidants, and corrosion inhibitors. This technology boasts high CO₂ absorption capacity, low regeneration energy consumption, virtually elimination of oxygen-induced degradation side reactions, and minimal equipment corrosion, enabling the production of CO₂ product gas with a purity exceeding 99.5%. Further purification and liquefaction can yield industrial-grade or food-grade CO₂ products, thereby realizing both carbon capture and utilization.
Technical Features and Advantages
µ Advanced and mature technology, simple process flow, and stable and reliable operation.
µ The purity and yield of the separated and recovered carbon dioxide are both high.
µ Low operating energy consumption, low carbon dioxide separation costs, and strong economic benefits.
µ The device features a high degree of automation, enabling network-based remote monitoring and unattended operation.
µ High operational load and strong adaptability to fluctuations in feed gas flow rate and compositional content.
Application Fields
T: Separation and recovery of carbon dioxide from lime kiln gas, flue gas, fermentation gas, and other sources to achieve carbon capture and utilization.
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Sichuan DKT Energy Technology Co., Ltd.( A subsidiary of Hydrexia (China))
Sichuan DKT Energy Technology Co., Ltd.
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(A subsidiary of Hydrexia (China))
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