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

A desulfurization project under construction in Heze, Shandong Province

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Detailed Introduction

　　Project Content

　　Turnkey Contract for a Coke Oven Gas Desulfurization Unit

　　Scale

　　60,000 Nm³/h Coke Oven Gas Wet Desulfurization Unit

　　Technical Indicators

　　Feed gas flow rate: 60,000 Nm³/h;

　　Feed gas composition: 55% H2, 6% CO, 26% CH4, 4% N2, 2% CO2, with trace amounts of O2, hydrocarbons, benzene, naphthalene, tar, and other substances; hydrogen sulfide content: 8,000 mg/Nm³.

　　Hydrogen sulfide content in purified coal gas: ≤100 mg/Nm³

　　The by-product sulfur meets the national standards for industrial sulfur.

　　Technical Features

　　1. A new desulfurization process employing the next-generation DKT-6 active catalyst for wet oxidation;

　　2. The unit employs a streamlined, short-process technology and features a unique integrated desulfurization and regeneration system, offering simple operation, stable performance, flexible process configuration, and broad applicability.

　　3. A closed-loop process is employed, featuring ambient-temperature, low-pressure absorption for desulfurization and spray-induced, self-aspiration air-based atmospheric oxidation for regeneration. This process achieves by-product sulfur without the need for thermal regeneration and utilizes continuous sulfur melting to recover sulfur as a by-product.

　　Low operating costs and low overall energy consumption;

　　4. This process is designed to be used in conjunction with a specially formulated composite DKT-600 active catalyst, which not only effectively removes hydrogen sulfide but also delivers excellent removal performance for organic sulfur compounds and cyanides.

　　5. The desulfurization liquid boasts a high sulfur capacity—more than twice that of comparable desulfurizing agents—and effectively suppresses undesirable side reactions, thereby reducing capital expenditures for treating desulfurization by-products and substantially lowering operating costs.

　　6. This process, along with the desulfurization tower and regeneration tank, features a uniquely designed equipment structure. When used in conjunction with the specially formulated DKT-6 composite active catalyst, which has a self-cleaning function, it effectively addresses the clogging issues common in conventional processes while ensuring that the system’s pressure differential remains within the specified range. For stability.

　　7. In collaboration with Topsoe (S) of Denmark, high-concentration industrial sulfuric acid can be produced concurrently with the removal of sulfides.

Keyword： A desulfurization project under construction in Heze, Shandong Province

Sichuan DKT Energy Technology Co., Ltd.( A subsidiary of Hydrexia (China))

Coal Gas Desulfurization at an Aluminum Plant in Guangxi

A desulfurization project under construction in Heze, Shandong Province

DKT Energy Technology

Sichuan DKT Energy Technology Co., Ltd.( A subsidiary of Hydrexia (China))

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