摘要:
A method for processing an amine-based solvent contaminated by the introduction of sulfur oxides is provided. A potassium compound is introduced into a contaminated solvent, and the contaminated solvent is cooled so that a solubility of a potassium sulfate becomes less than a specified concentration of potassium sulfate. Further, an oxidizing agent is introduced into the contaminated solvent so that a potassium sulfite is oxidized to potassium sulfate. The potassium sulfate is filtered out, wherein a prepared solvent is formed. Further, a device for processing an amine-based, sulfur oxide-contaminated solvent is provided.
摘要:
An absorbent agent is provided. The absorbent agent is particularly for separating carbon dioxide from the flue gas of a fossil-fired combustion device. The absorbent agent comprises a two-component mixture including a free amino acid and an amino acid salt, wherein the free amino acid exhibits a surplus compared to the amino acid salt based on the molar concentration. This creates variability in the PCBN value, which may be attained through different absorption and desorption process temperatures. A method for manufacturing the absorbent agent is also provided.
摘要:
A solvent for selective absorption of CO2 from the flue gas from a combustion plant is provided. The solvent includes an aqueous solution of a secondary amine as an active scrubbing substance and an additive which inhibits the formation of nitrosamine, the additive including a primary amine. A process for providing an absorption liquid is also provided.
摘要:
A solvent for selective absorption of CO2 from the flue gas from a combustion plant is provided. The solvent includes an aqueous solution of a secondary amine an active scrubbing substance and an additive, the additive including a salt of vitamin C or E. A process for providing an absorption liquid, and to the use of the solvent for selective absorption of CO2 from the flue gas from a combustion plant is also provided.
摘要:
A method for processing an amine-based solvent contaminated by the introduction of sulfur oxides is provided. A potassium compound is introduced into a contaminated solvent, and the contaminated solvent is cooled so that a solubility of a potassium sulfate becomes less than a specified concentration of potassium sulfate. Further, an oxidizing agent is introduced into the contaminated solvent so that a potassium sulfite is oxidized to potassium sulfate. The potassium sulfate is filtered out, wherein a prepared solvent is formed. Further, a device for processing an amine-based, sulfur oxide-contaminated solvent is provided.
摘要:
In a method for generating electrical energy by means of at least one low-temperature heat source (2), a VPT cyclic process (1, 10, 100) is carried out. Certain working substances are used to increase the efficiency of the VPT cyclic process.
摘要:
A method for treating a contaminated alkaline amino acid salt solution is provided. First, carbon dioxide is introduced into the amino acid salt solution, with the result that carbonate or carbonate salts is or are precipitated, these being filtered off. The remaining filtrate is then cooled, amino acid or amino acid salts being crystallized out and likewise being filtered off. The amino acid or amino acid salt is then dissolved again, with the result that a treated amino acid salt solution is recovered.
摘要:
Apparatus and process for removal of volatile degradation products from the absorbent circuit of a CO2 separation process are provided. The CO2 separation process may use the absorbent circuit in an absorption process and a desorption process. Condensate is withdrawn from a condensation process connected downstream of the desorption process, and purified to substantially free such condensate of degradation products. The purified condensate is recycled back to the absorbent circuit.
摘要翻译:提供了用于从CO 2分离过程的吸收回路中除去挥发性降解产物的装置和方法。 CO 2分离过程可以在吸收过程和解吸过程中使用吸收剂回路。 从与解吸过程下游连接的冷凝过程中取出冷凝物,并纯化至基本上释放降解产物的这种缩合物。 净化的冷凝物再循环回吸收回路。
摘要:
A method for treating a contaminated alkaline amino acid salt solution is provided. First, carbon dioxide is introduced into the amino acid salt solution, with the result that carbonate or carbonate salts is or are precipitated, these being filtered off. The remaining filtrate is then cooled, amino acid or amino acid salts being crystallized out and likewise being filtered off. The amino acid or amino acid salt is then dissolved again, with the result that a treated amino acid salt solution is recovered.
摘要:
A method for separating carbon dioxide from a flue gas of a fossil fuel-operated power plant is provided. In the method, a fossil fuel is initially burned in a combustion process, wherein a hot waste gas containing carbon dioxide is produced. In a next process step, waste gas containing carbon dioxide is brought into contact with an absorption medium in an absorption process, wherein carbon dioxide is absorbed by the absorption medium, thus forming a charged absorption medium. Next, gaseous carbon dioxide is thermally expelled from the charged absorption medium in a desorption process. For this purpose, a vapor is supplied to the desorption process, the vapor is injected into the charged absorption medium, wherein the condensation heat released by the condensation of the vapor is transferred to the charged absorption medium, and the partial pressure of the carbon dioxide is simultaneously reduced in the desorption unit.