Catalyst for preparing lubricant base oil and preparation method of carrier of catalyst

[0047] The preparation method of the catalyst carrier for preparing lubricating oil base oil provided by the invention comprises the following steps:

[0048] (1) Preparation of molecular sieve fragment structural units:

[0049] Place the raw material molecular sieve in an acidic or alkaline solution, fully stir for 5 minutes to 60 minutes to obtain a cloudy solution A, continue to adjust the pH value of the acidic or alkaline solution to 6 to 8, and obtain a cloudy solution B containing structural units of molecular sieve fragments;

[0050] (2) Preparation of catalyst carrier:

[0051] Mechanically mix the molecular sieve, the amorphous inorganic porous material and the binder to obtain a mixed powder, then prepare the turbid solution B obtained in step (1) with additives and deionized water to form a turbid solution, add it dropwise to the mixed powder, and continue kneading Forming, homogenizing, drying and roasting to obtain the catalyst carrier.

[0052] In some embodime

[0067] In this embodiment, the molecular sieve used to make the molecular sieve fragment structural unit and the carrier is an industrial ZSM-5 molecular sieve. The amorphous inorganic porous material used is Al 2 o 3 , the additives are nitric acid and citric acid, and the binder is scallop powder.

[0068] Preparation of ZSM-5 type fragment structural unit: Take 5g of ZSM-5 type molecular sieve and place it in 10ml of 5mol / L ammonia solution, stir fully in a water bath at 30°C for 60min to obtain turbid solution A; step B: Pass turbid solution A through 1mol / L L acetic acid solution was adjusted to a pH value of 6-8 to obtain a turbid solution B containing ZSM-5 type fragment structural units.

[0069] Get ZSM-5 type molecular sieve 80g, 20g Al 2 o 3 1. Mix 5g of scallop powder in a container, mix 10g of 37% nitric acid, 4g of citric acid with turbid solution B and 40ml deionized water to make turbid solution C, add dropwise to the above-mentioned mixed powder, knead an

[0071] In this embodiment, the molecular sieve used to make the structural unit of molecular sieve fragments is NU-87 molecular sieve, and the molecular sieve used for forming the carrier is ITQ-13 molecular sieve. The amorphous inorganic porous material used is Al 2 o 3 and SiO 2 , the additives are nitric acid and sulfuric acid, and the binder is squash powder.

[0072] Preparation of NU-87 type molecular sieve fragment structural unit: take 20g of NU-87 type molecular sieve and put it in 20ml of 0.5mol / L hydrochloric acid solution, fully stir in a water bath at 30°C for 5min to obtain turbid solution A; step B: pass turbid solution A through The 3 mol / L ammonia solution was adjusted to a pH value of 6-8 to obtain a turbid solution B containing NU-87 molecular sieve fragment structural units.

[0073] Take ITQ-13 type molecular sieve as 30g, 30g Al 2 o 3 , 20g SiO2 2 Mix with 8g of scallop powder in a container, mix 3g of nitric acid and 6g of sulfuric acid with turbi