| 摘要 |
2123125 9308907 PCTABS00021 An apparatus and process are disclosed for loading flowable materials, specifically catalysts, into receivers, specifically multi-tube reactors, quickly, without bridging of the catalyst and with maximum control over the catalyst drop rate and, consequently, control over the packed density of the catalyst in the reactor tubes. The invention utilizes a specially designed conveyor trough having a polygonal cross section, preferably octagonal, to load reactors in a more rapid, consistent manner without bridging and with minimum catalyst breakage and dust production. The invention is particularly applicable to jacketed multi-tube reactors used in the production of vinyl chloride monomer (VCM), ethylene dichloride (EDC), vinyl acetate, acrylic acid, ethylene oxide, phthalic anhydride and maleic anhydride.
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