Natural gas dewaxing system and method
A technology of natural gas and dewaxing, which is applied in the direction of gas fuel, petroleum industry, fuel, etc., and can solve problems such as production shutdown, less natural gas, and poor dewaxing effect
Inactive Publication Date: 2020-10-23
SICHUAN HONGHUA PETROLEUM EQUIP
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Problems solved by technology
Since there is no effective natural gas dewaxing process in the process of natural gas processing, the problem of wax plugging is usually solved by manual wax washing during device maintenance, which leads to production reduction or even shutdown of natural gas processing devices. It can be seen that the dewaxing process of raw gas is very necessary
[0003] Natural gas treatment processes are mainly desulfurization, dehydration, dehydrocarbon and other processes. At present, there are relatively few researches on natural gas dewaxing at home and abroad. A few design institutes use organic solvent washing natural gas dewaxing process, but the dewaxing effect is not good.
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[0038] Such as Figure 1 ~ Figure 2 As shown, a natural gas dewaxing system includes an inlet separator 1 , at least two dewaxing towers 7 , a steam generator 6 and a dust filter 2 .
[0039] The inlet separator 11 receives the natural gas to be processed and removes the liquid and solid impurities from the gas; the inlet separator 11 is provided with a liquid phase discharge valve for discharging the liquid, and a solid phase outlet for taking out the solid impurities.
[0040] At least two dewaxing towers 7 are filled with adsorbent capable of absorbing wax. The gaseous outlet pipeline of the inlet separator 1 is connected to the inlet of each dewaxing tower 7, and the dewaxing towers 7 are connected in parallel. By adopting parallel dewaxing towers 7, the working sequence of the dewaxing towers 7 can be separated, natural gas is selected to enter different dewaxing towers 7, and the remaining dewaxing towers 7 are regenerated and purged, which can meet the high throughput r...
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Abstract
The invention discloses a natural gas dewaxing system and a method. The system comprises an inlet separator, at least two dewaxing towers, a water vapor generator and a dust filter, and the dewaxing towers are filled with an adsorbent capable of adsorbing wax but not adsorbing natural gas; removing of liquid and solid impurities in the natural gas is realized when the natural gas passes through aninlet separator; after dewaxing is completed in the dewaxing towers, the dewaxed natural gas is enabled to flow to the downstream, the water vapor generator is adopted to introduce water vapor into the dewaxing towers with saturated adsorption to take away wax, then the dewaxed natural gas is emptied, and finally part of the dewaxed natural gas is taken as regeneration gas to be introduced into the dewaxing towers to blow and dry the adsorbent so as to achieve regeneration of the adsorbent. The dewaxing method is simple, does not need to use an organic solvent, can effectively remove the paraffin component in the natural gas, greatly improves the dewaxing efficiency, and reduces the dewaxing cost and energy consumption due to the fact that the adsorbent can be recycled after being used.
Description
technical field [0001] The invention belongs to the field of natural gas processing, in particular to a natural gas dewaxing system and method. Background technique [0002] In high-pressure natural gas processing technology and gathering and transportation, the removal of paraffin has always been a difficult problem. Since there is no effective natural gas dewaxing process in the process of natural gas processing, the problem of wax plugging is usually solved by manual wax washing during device maintenance, which leads to production reduction or even shutdown of natural gas processing devices. It can be seen that the dewaxing process of raw gas is very necessary. [0003] Natural gas treatment processes are mainly desulfurization, dehydration, dehydrocarbon and other processes. At present, there are relatively few researches on dewaxing of natural gas at home and abroad. A few design institutes use organic solvent washing natural gas dewaxing process, but the dewaxing effe...
Claims
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IPC IPC(8): C10L3/10
CPCC10L3/101
Inventor 廖玉华梁锋李涛谢小红彭勇侯均辉
Owner SICHUAN HONGHUA PETROLEUM EQUIP