What are the advantages of using natural gas as fuel in atmospheric and vacuum distillation processes? Will costs be saved? Which factories are burning natural gas?

Sure, as long as you have natural gas to burn. . . :Lol, the heat of combustion can be calculated based on its composition. . . Then you’ll know how the cost is. . . I’ll just give you an idea. . . Haha. . . :lol

As long as there is natural gas, using it is definitely cheaper than using fuel oil

Most refineries these days are integrated complexes, with an overall plan in place. Without gas processing, burning natural gas is more economical than using fuel.

The high-pressure gas used in the vacuum furnace is basically sourced from the low-pressure gas produced internally for regular furnaces; fuel oil is sufficient when combined with this high-pressure gas

When comparing the use of natural gas versus fuel oil in these devices: 1. Production operations are simpler: with fuel oil, it is necessary to control and adjust the ratio between oil and steam, which is quite difficult; whereas with natural gas, it is much easier – one only needs to control the appropriate amount of gas based on the production requirements. 2. More stable production: Natural gas is usually supplied by external providers, so its supply is stable and there are few fluctuations during use. In contrast, for processes that use oil, steam, or fuel oil, the pressure is generally provided internally, which leads to frequent fluctuations. Additionally, it is difficult to adjust the oil supply, resulting in less stable production. 3. It has a minor impact on heating furnaces. Oil-fired heating furnaces generate a large amount of smoke and dust, which causes ash to accumulate in the upper furnace tubes and thus affects their heat exchange efficiency. Additionally, oil firing does not ensure uniform combustion in each burner, leading to uneven heating in some of the furnace tubes. 4. The production cost is low; the calorific value of fuel oil is around 10,000 Kcal/kg, while that of natural gas is around 9,038 Kcal/kg. The price of oil is approximately 3,300 yuan per ton, and that of gas is around 3 yuan per m3. Currently, most refineries are equipped with devices for dry gas recovery; only those companies that use only atmospheric and vacuum distillation units, or only some of their refining facilities, rely on such methods.

Our plant usually uses purified dry gas for combustion; when the pressure of this dry gas is unstable, we switch to using natural gas. However, the cost of using natural gas is very high. When our plant’s flares stop operating, that non-condensable gas is stored in gas tanks and used as fuel gas for various processes, and the cost associated with this is quite low

1. Burning natural gas is better for equipment; although high-pressure gas has been desulfurized, its sulfur content remains relatively high. 2. According to some literature, it seems that in the future, whenever natural gas can be used for heating, it should be utilized as much as possible – this is the general trend. However, it’s not clear what purpose high-pressure gas will serve at that time 3. Burning natural gas causes much less environmental pollution; there is almost no pollution at all. 4. The method of burning non-condensable gas, as suggested by some, is not advisable; although it has a low cost, the damage it causes to the heating furnace is immeasurable.

Burning natural gas is clean; there is no ash buildup or environmental pollution.

Using gas is definitely beneficial for operations and the environment, etc. Whether to implement it depends mainly on the material balance of the combined unit. Once the system is able to balance this amount, it can be burned, allowing one to enjoy the corresponding benefits.

Oil prices are low now, so the cost of using gas is much lower than that of using natural gas; of course, it’s not feasible to use natural gas – it’s too wasteful.

It’s great to burn natural gas! But now few refineries burn that stuff, mainly due to environmental protection and energy conservation! Our factory primarily uses gas for heating; natural gas is only used when the gas pressure is unstable. Moreover, the use of natural gas is taken into account as part of performance evaluations – the more of it that is used, the better! In winter, it’s quite cold here; the gas often contains liquid, so we have to remove that liquid from time to time! Also, the gas pressure in our factory isn’t very stable, so everyone prefers to use natural gas! Gas is available in every refinery, and its cost is very low. Natural gas has to be purchased from outside, and the cost is quite high!

It’s estimated that oil is no longer being used; it’s mostly high-pressure gas or low-calorie gas produced by the device itself