초록 ▼

The invention is a process to recover a high pressure hydrogen-rich gas stream from a purge gas stream taken from a hydrotreater. This purge gas stream is admixed with synthesis gas that was the original source of the hydrogen to form a gaseous mixture. This mixed gas comprising purge gas and synthe

The invention is a process to recover a high pressure hydrogen-rich gas stream from a purge gas stream taken from a hydrotreater. This purge gas stream is admixed with synthesis gas that was the original source of the hydrogen to form a gaseous mixture. This mixed gas comprising purge gas and synthesis gas is advantageously treated to remove acid gases and possibly other impurities. The mixed gas is then treated to extract a hydrogen-rich gas and a hydrogen-depleted gas using, for example, a membrane. At least a portion of the hydrogen-rich gas is then heated and compressed as necessary and is recycled to the hydrotreater.

대표청구항 ▼

[ What is claimed is:] [1.]1. A process to recover a hydrogen from a hydrotreater effluent gas purge, said process comprising;a) reacting a hydrocarbon stream and hydrotreater gas in a hydrotreater, thereby forming a hydrotreater effluent gas and a liquid product;b) removing the hydrotreater effluen

[ What is claimed is:] [1.]1. A process to recover a hydrogen from a hydrotreater effluent gas purge, said process comprising;a) reacting a hydrocarbon stream and hydrotreater gas in a hydrotreater, thereby forming a hydrotreater effluent gas and a liquid product;b) removing the hydrotreater effluent gas;c) separating a portion of the hydrotreater effluent gas, thereby creating a recycle hydrotreater effluent gas stream and a purge gas stream;d) admixing the hydrotreater effluent gas purge with a synthesis gas stream, thereby creating a mixed gas stream;e) treating said mixed gas stream to produce separate hydrogen and fuel gas streams; andf) admixing the recycle hydrotreater effluent gas with at least a portion of the hydrogen stream to form hydrotreater gas, wherein said hydrotreater gas is introduced to the hydrotreater.