中國(guó)石化新聞網(wǎng)訊 據(jù)烴加工網(wǎng)7月10日?qǐng)?bào)道，去年，以產(chǎn)品供應(yīng)量衡量，美國(guó)西海岸的餾分油消費(fèi)量降至2002年以來(lái)的最低水平，今年有望進(jìn)一步下降。越來(lái)越多地使用生物燃料來(lái)代替石油柴油是造成這種下降的主要原因?？稍偕裼驮谠摰貐^(qū)柴油市場(chǎng)的份額越來(lái)越大，因?yàn)榍鍧嵢剂嫌?jì)劃為消費(fèi)可再生柴油提供了驅(qū)動(dòng)力?？稍偕裼秃蜕锊裼褪强梢源媸宛s分燃料油使用的生物燃料。餾分燃料油是一種精煉石油產(chǎn)品，主要用作汽車(chē)柴油燃料。

可再生柴油在化學(xué)上與石油基柴油相同，但它是用脂肪、油或潤(rùn)滑脂而不是石油制成的?？稍偕裼褪鞘宛s分的直接替代品，它可以在任何濃度的柴油發(fā)動(dòng)機(jī)中使用。

生物柴油的使用方式與可再生柴油相同，使用相同原料，但它與石油餾分混合(濃度為20%或更低)供車(chē)輛使用，因?yàn)樗诨瘜W(xué)上與石油餾分不同。

生物柴油和可再生柴油都是為了符合可再生燃料標(biāo)準(zhǔn)（RFS）這份聯(lián)邦計(jì)劃，計(jì)劃要求在美國(guó)銷(xiāo)售的運(yùn)輸燃料至少包含指定的最低限度可再生燃料。這些生物燃料也用于滿足加利福尼亞州的低碳燃料標(biāo)準(zhǔn)（LCFS）、俄勒岡州的清潔燃料計(jì)劃和華盛頓的清潔燃料計(jì)劃，這些計(jì)劃旨在降低運(yùn)輸燃料的碳強(qiáng)度。

2022年1月，美國(guó)可再生柴油消費(fèi)量首次超過(guò)生物柴油消費(fèi)量，并從那時(shí)起持續(xù)增加?？稍偕裼偷南M(fèi)量相對(duì)于生物柴油的消費(fèi)量有所增長(zhǎng)，這是因?yàn)椋?/p>

根據(jù)RFS計(jì)劃，可再生柴油比生物柴油獲得更多的信用額度；

煉油商可以把他們的裝置改造成生產(chǎn)可再生柴油而不是石油產(chǎn)品；

可再生柴油廠比生物柴油廠大，可以利用規(guī)模經(jīng)濟(jì)的優(yōu)勢(shì)；

可再生柴油可以以任何濃度混合，在寒冷中比生物柴油表現(xiàn)更好；

可再生柴油可以通過(guò)與石油柴油相同的管道輸送。

據(jù)EIA估計(jì)，加州幾乎消耗了全國(guó)所有的可再生柴油。加州沒(méi)有消耗的大部分可再生柴油都被俄勒岡州和華盛頓州等實(shí)施清潔燃料計(jì)劃的州所消耗，這三個(gè)州都是美國(guó)西海岸地區(qū)的一部分。

由于加州、俄勒岡州和華盛頓州的生物燃料消費(fèi)量較高，美國(guó)可再生柴油消費(fèi)量的增長(zhǎng)對(duì)西海岸餾分油消費(fèi)的影響更為明顯。

2022年和2023年前三個(gè)月餾分燃料油消費(fèi)量的下降只有西海岸。在美國(guó)其他地區(qū)，餾分燃料油消耗量已恢復(fù)至疫情前水平。西海岸和美國(guó)其他地區(qū)餾分燃料油消費(fèi)量之間的差異表明，在西海岸生物燃料消費(fèi)量已經(jīng)取代了餾分燃料油消費(fèi)量。

郝芬 譯自 烴加工網(wǎng)

原文如下:

Biofuels are displacing petroleum-based distillate fuel oil consumption on the West Coast

Last year, U.S. West Coast distillate consumption, as measured by product supplied, was at its lowest since 2002 and is on track to fall further this year. The growing use of biofuels instead of petroleum diesel is the primary cause for the decline. Renewable diesel has a growing share of the region’s diesel fuel market because clean-fuel programs have provided incentives for consuming it.

Renewable diesel and biodiesel are biofuels that can be used in place of petroleum distillate fuel oil. Distillate fuel oil is a refined petroleum product primarily used as diesel fuel in vehicles.

Renewable diesel is chemically identical to petroleum-based diesel fuel but is made using fats, oils, or greases rather than petroleum. Renewable diesel is a drop-in replacement for petroleum distillate; it can be used in diesel engines in any concentration.

Biodiesel is used the same way as renewable diesel and is made with the same feedstocks, but it’s blended (in concentrations of 20% or less) with petroleum distillate for vehicle use because it is chemically different from petroleum distillate.

Both biodiesel and renewable diesel are used to comply with the Renewable Fuel Standard (RFS), a federal program that requires transportation fuel sold in the United States to contain at least a specified minimum of renewable fuels. These biofuels are also used to meet California’s Low Carbon Fuel Standard (LCFS), Oregon’s Clean Fuels Program, and Washington’s Clean Fuels Program. These programs aim to reduce the carbon intensity of transportation fuel.

In January 2022, U.S. renewable diesel consumption surpassed biodiesel consumption for the first time and has continued to increase since then. Renewable diesel consumption has grown relative to biodiesel consumption because:

Renewable diesel receives more credits under the RFS program than biodiesel.

Petroleum refiners can convert their units to produce renewable diesel instead of petroleum products.

Renewable diesel plants are larger than biodiesel plants and can take advantage of economies of scale.

Renewable diesel can be blended in any concentration and performs better in the cold than biodiesel.

Renewable diesel can be transported through the same pipelines as petroleum diesel.

Almost all of the country’s renewable diesel fuel is consumed in California, according to EIA estimates. Much of the renewable diesel not consumed in California is consumed in other states with clean fuel programs, such as Oregon and Washington. All three states are part of the U.S. West Coast region.

The growth in U.S. renewable diesel consumption had a more pronounced effect on West Coast distillate fuel consumption because of high biofuel consumption in California, Oregon, and Washington.

The decline in distillate fuel oil consumption in 2022 and in the first three months of 2023 is unique to the West Coast. In the rest of the United States, distillate fuel oil consumption increased, returning to pre-pandemic levels. The discrepancy in distillate fuel oil consumption between the West Coast and the rest of the United States demonstrates how much biofuel consumption has been displacing distillate fuel oil consumption on the West Coast.