Producer gas originating from the gasification of biomass has a complex composition, especially compared to its coal or gas based counterparts. Separation of these mixtures is a crucial step in a commercial process, which can effectively be achieved by selective adsorption. In this paper the adsorptive separation of ethylene from a typical complex gas mixture containing N₂, H₂, CH₄, C₂H₄, C₂H₆, CO and CO₂ on zeolites [Ca]A and [Ag]A using a set-up for high throughput screening is described. It was shown that [Ca]A has a high ethylene adsorption capacity, whereas ethane and CO₂ are co-adsorbed. Desorption of ethylene from [Ca]A is slow, but the adsorption capacity could be restored fully. In addition, the material is stable over 15 subsequent adsorption/desorption cycles without loss in performance. On the other hand, [Ag]A has a high adsorption selectivity for ethylene. However, its stability and ethylene recovery from the material is low, since only 80% of the original ethylene adsorption capacity was recovered after the first cycle. The adsorption capacity and selectivity decreases even further in subsequent cycles. This decrease in adsorption capacity and selectivity is caused by the reduction of the Ag⁺ ion to metallic silver and agglomeration to larger particles due to the presence of reducing gases, e.g. ethylene, CO and H₂, in the gas stream.

源自生物质气化的沼气具有复杂的成分，尤其是与基于煤炭或天然气的沼气相比。这些混合物的分离是工业过程中的关键步骤，可以通过选择性吸附有效地实现。在本文中，使用沸石[Ca] A和[Ag] A从典型的含N ₂，H ₂，CH ₄，C ₂ H ₄，C ₂ H ₆，CO和CO ₂的典型复杂混合气体中吸附分离乙烯描述了用于高通量筛选的装置。结果表明，[Ca] A具有较高的乙烯吸附能力，而乙烷和CO ₂具有较高的吸附能力。被共同吸附。乙烯从[Ca] A上的解吸缓慢，但可以完全恢复吸附能力。另外，该材料在随后的15个吸附/解吸循环中保持稳定，而没有性能损失。另一方面，[Ag] A对乙烯的吸附选择性高。但是，其稳定性和乙烯从材料中的回收率较低，因为在第一个循环后仅回收了原始乙烯吸附量的80％。吸附能力和选择性在随后的循环中甚至进一步降低。吸附能力和选择性的降低是由于存在还原性气体（例如乙烯，CO和H ₂）导致Ag ⁺离子还原为金属银，并且团聚为较大的颗粒而导致的。，在气流中。