摘要:
This present invention provides a method to recover hydrogen and carbon dioxide, preferably at least 50%, even more preferably at least 80% and most preferably at least 90% of the carbon dioxide contained in a syngas stream (15). The proposed use combines hydrogen selective membranes (42, 7) and carbon dioxide selective membranes (10) together with carbon dioxide separation units (4) and pressure swing adsorption unit (0) such that hydrogen and carbon dioxide are produced.
摘要:
A process for separating carbon dioxide from a fluid containing carbon dioxide, NO2, and at least one of oxygen, argon, and nitrogen comprises the steps of separating at least part of the fluid into a carbon dioxide enriched stream, a carbon dioxide depleted stream comprising CO2 and at least one of oxygen, argon, and nitrogen and a NO2 enriched stream and recycling said NO2 enriched stream upstream of the separation step.
摘要翻译:从含有二氧化碳NO 2和氧,氩和氮中的至少一种的流体中分离二氧化碳的方法包括以下步骤:将至少部分流体分离成富含二氧化碳的流,二氧化碳贫化流包含 CO 2和氧,氩和氮中的至少一种和富含NO 2的流,并且在分离步骤的上游再循环所述富含NO 2的流。
摘要:
A process for separating carbon dioxide from a carbon dioxide containing fluid comprises the steps of: compressing the fluid in a compressor to form a compressed fluid, drying at least part of the compressed fluid to form a compressed and dried fluid, cooling at least part of the compressed and dried fluid to form a compressed, dried and cooled fluid, separating the compressed, dried and cooled fluid at a temperature lower than 0° C. into a carbon dioxide rich stream, a carbon dioxide lean stream and at least one intermediate purity liquid stream having a carbon dioxide purity lower than that of the carbon dioxide rich stream and higher than that of the carbon dioxide lean stream, expanding at least one intermediate purity liquid stream to produce at least one expanded stream using at least one expanded stream to cool the compressed and dried fluid and recycling at least part of the expanded stream.