Cracking carbon five selective hydrogenation catalyst

Abstract

The invention relates to a selective hydrogenation catalyst for C5 cracking and belongs to the technology field of hydrogenation catalysts. In order to meet the urgent need of the selective hydrogenation catalysts for the C5 cracking, the invention provides a catalyst for selective hydrogenation in the C5 cracking, which contains the following components in the given mass percentages: Ni 10-35%, La 0.5-3%, Ag 0.3-3% and aluminum oxide carrier 59-89.2%, calculated on basis of the total mass of the catalyst. The catalyst can also contain K and / or Sr or Pb. The catalyst is used for selective hydrogenation in the C5 cracking as well as hydrogenation in the C5 cracking and excellent in conversion rate, selectivity and stability.

Description

technical field

[0001] The invention relates to a hydrogenation catalyst, more specifically, the invention relates to a catalyst for selective hydrogenation of cracked carbon five. Background technique

[0002] With the continuous expansion of the scale of the ethylene plant, the by-product C5 fractions are also increasing. The C5 yield varies with the cracking depth and cracking raw materials of the ethylene plant, and is generally 10-15% of the ethylene output. With the progress and completion of the second round of transformation of the ethylene plant, the by-product cracked C5 fraction in my country is about 1.5 million tons per year. However, compared with the high utilization rate of C5 fractions in foreign countries, the utilization of C5 fractions in my country is far from enough. Most of them are used as fuel, and the added value of C5 fractions is basically not utilized. At present, Sinopec only has Shanghai The petrochemical construction has a set of 25,000 tons / y...

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