拟薄水铝石新工艺研发及其在加氢精制催化剂中的应用

Abstract

Abstract:

A new production process of pseudo-boehmite was developed by CenerTech Tianjin Chemical Research and Design Institute Co.,Ltd.,which solved the shortcomings of high production cost and difficult control of product structure by conven-tional methods.The new process for the production of pseudo-boehmite achieved stabilization and serialization,and provided a reliable guarantee for the stability of the performance of the hydrofining catalyst product.A high performance sulfurized THFS-I catalyst for reforming pre-hydrogenation was successfully developed using pseudo-boehmite TCA-01 as support ma-terial.The catalyst had excellent hydrodesulfurization and hydrodenitrification activity.The mass fraction of S and N in hydro-genated products was both less than 0.5 μg/g,which met the requirements of reforming feed.High performance THDS-I cata-lyst for diesel hydrofining was successfully developed using TCA-01 as carrier material.The overall performance of the cata-lyst was better than that of pseudo-boehmite made by conventional methods.

Key words: pseudo-boehmite, catalyst, hydrofining, naphtha, clean diesel

CLC Number:

TQ133.1

Nan Jun,Yu Qun,Yu Haibin,Zhang Jingcheng,Xiao Han,Zhu Jinjian,Li Xiaoyun. Study on a new production process of pseudo-boehmite and its application in hydrofining catalysts[J]. Inorganic Chemicals Industry, 2019, 51(6): 80-82.

载体	强度/ （N·cm^-1）	孔容/ （mL·g^-1）	比表面积/ （m²·g^-1）	4~10 nm孔径分布/%
传统工艺产品	156	0.63	307	67.2
新工艺产品	188	0.69	353	75.2

产品批次	杂质合格率/%	孔容合格率/%	比表面积合格率/%
1	99.5	98.9	99.3
2	99.6	99.3	99.6
3	99.4	99.2	99.5

项目	密度（20 ℃）/ （kg·m^-3）	硫含量/ （μg·g^-1）	总脱硫率/ %	氮含量/ （μg·g^-1）	总脱氮率/ %	溴价/ （10^-2 g·g^-1）	液体收率/ %	馏程/℃
项目	密度（20 ℃）/ （kg·m^-3）	硫含量/ （μg·g^-1）	总脱硫率/ %	氮含量/ （μg·g^-1）	总脱氮率/ %	溴价/ （10^-2 g·g^-1）	液体收率/ %	HK	10%	50%	90%	KK
石脑油原料	737.6	165	—	6.8	—	1.4	—	46.1	84.3	122.2	160.2	168.8
THFS-I （720 h）	736.9	0.38~0.40	97.8	0.36~0.42	99.1	0.2	>99.5	45.8	83.2	122.0	160.0	168.3
THFS-I （1 500 h）	736.8	0.36~0.42	97.7	0.35~0.43	99.0	0.2	>99.5	45.2	83.1	121.8	159.8	168.3
参比剂（600 h）	736.8	0.38~0.45	97.7	0.42~0.56	99.0	0.2	>99.5	45.2	83.1	121.8	159.8	168.3

催化剂	化学组成 w（MoO₃+NiO）/%	外观及尺寸/ mm	孔容/ （mL·g^-1）	比表面积/ （m²·g^-1）	表观密度/ （t·m^-3）	强度/ （N·cm^-1）
THDS-I	28.6	五齿球 2.1~2.5	基准+ 0.12	基准+ 28	0.85	169
参比剂	28.5	三叶草（1.3~1.4）×（3~8）	基准	基准	0.88	182

项目		密度（20 ℃）/ （kg·m^-3）	硫含量/ （μg·g^-1）	脱硫率/%	氮含量/ （μg·g^-1）	脱氮率/%	十六烷值指数
原料油		928	2 483	—	1 041	—	24.9
270 ℃	THDS-I	916	557	77.6	578	44.5	26.5
270 ℃	参比剂	917	755	69.6	725	30.3	26.2
330 ℃	THDS-I	905	198	92.0	176	83.1	28.3
330 ℃	参比剂	907	239	90.3	197	81.1	28.1

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on a new production process of pseudo-boehmite and its application in hydrofining catalysts

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