When the feed gas enters the battery limit of desulfurization equipment, it first passes through a feed gas separator to remove a small amount of free water carried in the feed gas by gravity, and then the gas passes through the desulfurizer bed in the tower from the top of the desulfurization tower, and the H2S in the gas is removed. The purified natural gas comes out from the tower bottom and enters the purified gas filter separator to separate the desulfurizer dust that may be entrained in the gas, and the natural gas from the purified gas filter separator directly flows into the gas transmission main pipe. As for the regeneration operation, since the operating conditions are difficult to control and the reuse results are poor, the desulfurizer is currently used once.
Different dry desulfurization process schemes can be selected according to the specific conditions such as gas quality conditions, treatment capacity and station planning and construction scheme. The current scheme includes feed gas separator + double tower + purified gas filter separator. In addition, there are schemes of double tower + purified gas filter separator, feed gas separator + four towers + purified gas filter separator, four towers + purified gas filter separator, etc.
二、天然气脱硫设备技术特点：
2、 Technical features of natural gas desulfurization equipment:
（1）脱硫剂，具有硫容高、强度大等优点，其实际硫容可达25%～30%（质量分数）;
(1) Desulfurizer has the advantages of high sulfur capacity and high strength, and its actual sulfur capacity can reach 25% ~ 30% (mass fraction);
(2) The desulfurizer can be operated within the pressure range of 0.1 ~ 8.0MPa, and only h and s are removed without CO2. The content of H and s in purified gas can meet the requirements of class I natural gas;
（3）设备的流程和设备都简单，操作方便，可实现无人值守;
(3) The process and equipment of the equipment are simple, easy to operate and unattended;
（4）设备投资和生产成本均较低，除装料时需少量耗能外，在运行条件下基本无能耗;
(4) The equipment investment and production cost are low. Except for a small amount of energy consumption during loading, there is basically no energy consumption under operating conditions;
（5）有废渣处理问题，但废渣对人、畜没损害，对环境不构成污染，对碱性土壤有一些改良作用;
(5) There is the problem of waste residue treatment, but the waste residue does not damage people and livestock, does not pollute the environment, and has some improvement effect on alkaline soil;
(6) For the natural gas desulfurization equipment using solid desulfurizer, the better the sulfur potential is, the H2S removal amount is ≤ 150kg / D (according to the sulfur content of feed gas), which saves the operation cost.
企业二维码
2021-09-08
鲁公网安备37011202000764号号