煉化尾氣發(fā)電機(jī)的發(fā)展背景

Development background of refining tail gas generators

　　煉化行業(yè)生產(chǎn)過程中會產(chǎn)生大量的含低濃度烴類尾氣，其烴類組分主要有乙烯、丙烯等，平衡氣為氮氣。該類尾氣目前常規(guī)處理方法是進(jìn)入火炬燃燒，或簡單吸附處理后排至大氣，其烴類濃度遠(yuǎn)遠(yuǎn)達(dá)不到排放標(biāo)準(zhǔn)的要求。隨著我國能源需求的不斷增長以及化石能源的消耗帶來環(huán)境壓力的不斷加劇，非傳統(tǒng)能源和可再生能源的開發(fā)利用越來越受到重視，而且國家對節(jié)能減排的支持力度也越來越大。

In the production process of the refining industry, a large amount of low concentration hydrocarbon tail gas is generated, and its hydrocarbon components mainly include ethylene, propylene, etc. The equilibrium gas is nitrogen. The current conventional treatment method for this type of exhaust gas is to enter the torch combustion or simply adsorb and treat it before discharging it into the atmosphere, but its hydrocarbon concentration far does not meet the requirements of emission standards. With the continuous growth of energy demand in China and the increasing environmental pressure caused by the consumption of fossil fuels, the development and utilization of non-traditional and renewable energy sources are receiving increasing attention, and the country's support for energy conservation and emission reduction is also increasing.

　　在發(fā)電機(jī)設(shè)備中，發(fā)動機(jī)作為動力設(shè)備常常需要耗費大量的燃料，由于煉化尾氣中含有大量的可燃性氣體，可以作為燃?xì)獍l(fā)動機(jī)的燃料使用，大大提高資源的利用率。

In generator equipment, the engine, as a power equipment, often requires a large amount of fuel consumption. Due to the large amount of combustible gases in refining exhaust gas, it can be used as fuel for gas engines, greatly improving resource utilization.

　　目前，國內(nèi)大多數(shù)燃?xì)獍l(fā)電機(jī)組采用空氣與燃?xì)忸A(yù)混合后進(jìn)入氣缸內(nèi)燃燒，這種機(jī)型進(jìn)氣回火嚴(yán)重時，可以導(dǎo)致進(jìn)氣管炸裂等一系列安全問題的發(fā)生；

At present, most gas generator sets in China use air and gas pre mixed before entering the cylinder for combustion. When the intake backfire of this type of machine is severe, it can cause a series of safety problems such as intake pipe explosion;

　　其次，由于煉化尾氣是大量可燃?xì)怏w的混合物，若要較好地控制空燃比的話，必須準(zhǔn)確掌握煉化尾氣進(jìn)入到進(jìn)氣系統(tǒng)中的濃度以對進(jìn)氣閥門有效調(diào)節(jié)；

Secondly, due to the fact that refining exhaust gas is a mixture of a large amount of combustible gases, in order to effectively control the air-fuel ratio, it is necessary to accurately grasp the concentration of refining exhaust gas entering the intake system to effectively regulate the intake valve;

　　另外，煉化尾氣中含有部分焦油，焦油成分復(fù)雜，有些煉化尾氣在收集的過程中已經(jīng)分離了焦油，但是仍有一部分焦油混合在準(zhǔn)備輸入進(jìn)氣系統(tǒng)的煉化尾氣中，而且即便是存在少量的焦油，隨著發(fā)電機(jī)使用時間的延長就會粘結(jié)在發(fā)動機(jī)中，對煉化尾氣的燃燒具有一定的影響，并且影響活塞的氣密性。

In addition, the refining exhaust gas contains some tar, which is complex in composition. Some refining exhaust gases have already separated tar during the collection process, but there is still a portion of tar mixed in the refining exhaust gas that is ready to be input into the intake system. Even if there is a small amount of tar, it will stick to the engine as the generator is used for a long time, which has a certain impact on the combustion of the refining exhaust gas and affects the airtightness of the piston.

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