Double-isothermal shift converter with double cooling systems
An isothermal shift and double cooling technology, applied in the field of temperature shift furnaces, can solve the problems of large system pressure drop, long process flow, and high investment, and achieve the effects of small system pressure drop, low investment, and short process
Active Publication Date: 2020-04-10
SINOPEC NINGBO ENG +2
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Problems solved by technology
It leads to the problems of long process flow, many equipments, high investment and large system pressure drop
Method used
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] Such as Figure 1 to Figure 4 As shown, the dual isothermal shift furnace with dual cooling system includes:
[0033] The furnace body 1 is a conventional structure, including an upper head 11 , a lower head 12 and a cylinder 13 connected between the upper head 11 and the lower head 12 . The upper head 11 is provided with a manhole 14, the manhole 14 is covered with a manhole cover, and the feed gas inlet 35 is located on the manhole cover.
[0034] The catalyst frame is used to fill the catalyst and is arranged in the cylinder body 13, and the cavity between the catalyst frame and the synthesis gas collection pipeline forms a reaction chamber. The catalyst frame in this embodiment includes an inner cylinder 21 and an outer cylinder 22 .
[0035] The installation structure of the catalyst frame can be selected from any one of the pri...
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The invention relates to a double-isothermal shift converter with double cooling systems. The double-isothermal shift converter comprises a converter body, a catalyst frame arranged in the converter body and a plurality of heat exchange tubes arranged in the catalyst frame, wherein a synthesis gas collecting pipeline is further arranged in the catalyst frame, a cavity between the catalyst frame and the synthesis gas collecting pipeline forms a reaction cavity, a gap between the catalyst frame and the converter body forms a raw material gas channel, various heat exchange tubes are spirally coiled in a catalyst bed layer by taking the synthesis gas collecting pipe as a core shaft to form a plurality of heat exchange tube layers, a gap for filling a catalyst is formed between the two adjacentheat exchange tube layers, the spiral directions of the adjacent heat exchange tube layers are opposite, the heat exchange tubes are divided into two groups including a first group of the heat exchange tubes connected with a first refrigerant source and a second group of the heat exchange tubes connected with a second refrigerant source, the first group of the heat exchange tubes are arranged close to the catalyst frame, and the second group of the heat exchange tubes are arranged close to the synthesis gas collecting pipeline.
Description
technical field [0001] The invention relates to chemical equipment, in particular to a double isothermal shift furnace with double cooling systems. Background technique [0002] my country is a country rich in coal resources and relatively deficient in oil resources. Since entering the 21st century, my country's coal chemical industry has entered a stage of rapid development. Coal gasification is an important method for chemical processing of coal and the key to realize clean utilization of coal. [0003] The CO conversion process is an indispensable part of modern coal chemical technology, and it bears the role of linking the past and the future. The purpose of CO shift is to adjust the H 2 and CO concentration to meet the needs of downstream users. When the CO shift process is equipped with ammonia or hydrogen production units, there is a high requirement for the dry basis content of CO in the shift gas, usually less than 0.4%. The conventional practice is to connect a...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01J8/02C01B3/16F22B1/00F24V30/00
CPCB01J8/02B01J8/0242B01J8/0285C01B3/16F22B1/00F24V30/00B01J2208/00132B01J2208/00194C01B2203/0283C01B2203/0883Y02P20/52
Inventor 施程亮许仁春徐洁石翔鞠剑
Owner SINOPEC NINGBO ENG