China Petroleum Chemical Corporation

Research Institute of Nanjing Chemical Industry Group

Research Institute of Nanjing Chemical Industrial Group

Aixiang Hao

Jian He

Yang Yu

Songbai Mao

Yusheng Yin

Tianming Xie

Shixin Wei

Chunpeng Mao

Haibo Chen

Jiedong Tan

Jing Kong

Disclosed is a method for preparing a copper-zinc-based catalyst used in synthesis of methanol through COhydrogenation, and ultrasonic waves are used for control over crystalline phase's composition of a catalyst precursor. Further related to is a catalyst prepared by such a method. An amount of aurichalcite in an active catalyst precursor can be improved through the method, and the specific surface area of the metal copper in a reduced state catalyst is high. The catalyst presents high activity and hydrothermal stability, and promotes high space time yield of methanol in the synthesis of methanol through COhydrogenation.

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A process of removing SOfrom a flue gas with a trickling filter using modified ceramsite packing is described. The biological flue gas desulfurization process includes: feeding the flue gas containing sulfur dioxide through the column bottom into the biomembrane trickling filter at certain temperature, contacting with the modified ceramsite biomembrane packing and purifying, which purified flue gas is discharged via the column top; and spraying the nutrient fluid rich in high concentration of the desulfurization strain through the top to the modified ceramsite biomembrane packing, thereby the sulfur-bearing pollution source in the flue gas is degraded, so as to discharge a purified flue gas satisfying the environmental requirements.

Modified ceramsite packing useful for biomembrane trickling filter and a process for removing SO2 from flue gas using the trickling filter

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Nanjing, China

Aixiang Hao