JP4741661B2 - ディーゼルレンジ炭化水素の製造方法 - Google Patents
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Description
脱カルボニル: C17H35COOH+H2 → C17H36+CO+H2O (B1)
C17H35COOH → C17H34+CO+H2O (B2)
水素化: C17H35COOH+3H2 → C18H38+2H2O (C)
メタン化: CO+3H2 → CH4+H2O (D)
水性ガスシフト:CO+H2O → H2+CO2 (E)
本発明の目的は、水素消費量が低減された、バイオ油脂からのディーゼルレンジ炭化水素の製造のための改善された方法である。
本明細書において、水素化加工処理とは、分子状水素のあらゆる手段による有機材料の触媒的処理と理解される。
本発明は、水素化処理工程および異性化工程を含み、再生可能な供給源、たとえば、植物油/脂肪および動物油/脂肪および魚の油/脂肪などのバイオ油脂など、特に、C12〜C16脂肪酸および/またはその誘導体から、ディーゼルレンジ炭化水素を、イオウの存在下で製造するための改善された方法に関する。本発明は、水素化処理中の水素消費量を低減させて、イオウの存在下、トリグリセリド、脂肪酸および脂肪酸の誘導体、特にC12〜C16脂肪酸および/またはその誘導体またはそれらの組合せを含む供給原料をn−パラフィンに水素化処理した後、異性化により高ディーゼル収率でn−パラフィンをディーゼルレンジ分枝アルカンに変換することに関する。この方法によって生成する炭化水素油生成物は、高品質のディーゼル成分である。水素化処理工程では、イオウの存在下で、供給原料を硫化水素化処理触媒と接触させた後、異性化触媒を用いた異性化工程を行なう。
本発明の方法において未使用供給原料として使用されるバイオ油および/または脂肪は、再生可能な供給源由来のもの、たとえば、植物および/または動物および/または魚由来の油脂ならびにこれらから誘導される化合物などである。原料油として有用である代表的な植物または植物性または動物油/脂肪の基本構造単位はトリグリセリドであり、これは、グリセロールと3つの脂肪酸分子とのトリエステルであり、下記式Iで表される構造を有する。
水素化処理ユニットへ向けられる供給原料は、未使用供給原料および任意で少なくとも1種類の希釈剤を含む。希釈剤は、生物学的起源および/または非生物学的起源の炭化水素でよい。供給原料がさらに少なくとも1種類の希釈剤を含む場合、供給原料は、20重量%未満の未使用供給原料を含有することが好ましい。
生成物の低温特性を改善するためには、n−パラフィンの異性化が必要である。異性化の際、分枝イソパラフィンが生成する。イソパラフィンは、通常は、モノ−、ジ−、トリ−またはテトラメチル分枝を有する。
本発明による方法は、脂肪酸およびその誘導体を含有することのある未使用供給原料の水素化処理の際に、高分子量化合物の生成を低減する方法を提供する。本発明による方法は、ディーゼル収率が高く、重大な副反応のない、バイオ油脂からのディーゼルレンジ炭化水素の選択的な製造を提供する。分枝炭化水素は、植物油脂や植物性油脂ならびに動物および魚の油脂から、水素化脱酸素中の脱炭素反応の促進性補助を用いて製造することができ、従って、水素消費量は20〜60%、一般的には20〜40%低減される。
0.3面積%の遊離脂肪酸を含有するヤシ油を未使用供給原料として、水素の存在下、再利用生成物とともに5:1で使用した。未使用供給原料中のトリグリセリドC12〜C16脂肪酸の含有量は58.3重量%であった。全供給原料は、アルカリ金属およびアルカリ土類金属(アルカリ金属およびアルカリ土類金属元素として換算)を10w−ppm未満の量で含んでいた。供給原料中の他の金属の量(金属元素として換算)は10w−ppm未満であった。リンの量(リン元素として換算)は30w−ppmm未満であった。
44.8重量%のトリグリセリドC12〜C16脂肪酸を含有するヤシ油を未使用供給原料において使用した。ジメチルジスルフィドをヤシ油に添加し、供給原料中でのイオウ含量(イオウ元素として換算)を約600w−ppmとした。供給原料の純度は実施例1と同じであったが、遊離脂肪酸量は0.2面積%であった。希釈剤は使用しなかった。供給原料は、水素存在下、305℃で水素化処理し、未使用供給原料に対して、反応器圧力を5MPa、空間速度を2g/gとした。生成物は、主にn−パラフィンを含んでいた。n−パラフィン供給原料は317℃、4MPaで異性化し、WHSVは、水素の存在下、3l/hとした。触媒(A)は、Pt、SAPO−11およびアルミナ担持体を含むものであった。生成物中、>C10の炭化水素の量は97重量%であった。該液状生成物の曇り点は−22℃であった。生成物の分析の結果を表4に示す。
実施例2で得られた水素化処理ヤシ油を312℃、4MPaで異性化し、WHSVは、水素の存在下、触媒Aで31/hとした。これにより、−14℃の曇り点を有する液状生成物が得られた。生成物中、>C10の炭化水素の量は、今度は、98重量%であった。表4からわかるように、生成物の引火点および蒸留曲線から、少量の軽質炭化水素が推測され得る。表4は、菜種油およびヤシ油の水素化処理および異性化した生成物の分析結果を示し、HRO=水素化処理菜種油、HPO=水素化処理ヤシ油である。
30重量%のトリグリセリドC12〜C16脂肪酸を含有する動物脂肪を、未使用供給原料として使用した。供給原料は、アルカリ金属およびアルカリ土類金属(アルカリ金属およびアルカリ土類金属元素として換算)を10w−ppm未満の量で含んでいた。供給原料中の他の金属の量(金属元素として換算)は10w−ppm未満であった。リンの量(リン元素として換算)は30w−ppm未満であった。ジメチルジスルフィドを動物脂肪に添加し、供給原料中でのイオウ含量を約100w−ppmとした。未使用供給原料は遊離脂肪酸を0.6面積%含んでいた。供給原料を、水素の存在下、300℃で水素化処理し、未使用供給原料に対して、反応器圧力を5MPa、空間速度を2g/gとし、希釈剤は伴わなかった。生成物は、主にn−パラフィンを含んでいた。n−パラフィン供給原料を316℃、4MPaで異性化し、WHSVは、水素の存在下、1.51/hとした。触媒(B)は、Pt、SAPO−11およびアルミナ担持体を含むものであった。生成物中、>C10の炭化水素の量は95重量%であった。該液状生成物の曇り点は−20℃であった。
実施例4で得られた水素化処理動物脂肪を、312℃、4MPaで異性化し、WHSVは、水素の存在下、触媒Bで1.51/hとした。これにより、−13℃の曇り点を有する液状生成物が得られた。>C10の炭化水素の量は、今度は、98重量%であった。
Claims (19)
- 供給原料が、少なくとも20重量%のトリグリセリドC12〜C16脂肪酸もしくはC12〜C16脂肪酸エステルもしくはC12〜C16脂肪酸またはその組合せを含有する未使用供給原料を含み、全供給原料が、100〜10000w−ppmのイオウ(イオウ元素として換算)を含有することを特徴とし、供給原料が水素化処理工程において水素化処理され、異性化工程において異性化され、
少なくとも1種類の無機もしくは有機イオウ化合物またはイオウ化合物を含有する精油所ガスおよび/もしくは液体流が全供給原料または未使用供給原料に添加される、ディーゼルレンジ炭化水素の製造方法。 - 未使用供給原料が、少なくとも30重量%のトリグリセリドC12〜C16脂肪酸もしくは他の脂肪酸エステルまたはその組合せを含有することを特徴とする請求項1記載の方法。
- 未使用供給原料が5重量%より多くの遊離脂肪酸を含有することを特徴とする請求項1または2記載の方法。
- 供給原料が、10w−ppm未満のアルカリ金属およびアルカリ土類金属(アルカリ金属およびアルカリ土類金属の元素として換算)、10w−ppm未満の他の金属(金属元素として換算)、および30w−ppm未満のリン(リン元素として換算)を含有することを特徴とする請求項1〜3のいずれか1項に記載の方法。
- 供給原料が、20重量%未満の未使用供給原料およびさらに少なくとも1種類の再利用生成物を含むことを特徴とする請求項1〜4のいずれか1項に記載の方法。
- 再利用生成物が、前記方法の再利用生成物であり、再利用生成物/未使用供給原料比が5〜30:1であることを特徴とする請求項5記載の方法。
- 供給原料が、1000〜8000w−ppmのイオウ(イオウ元素として換算)を含有することを特徴とする請求項1〜6のいずれか1項に記載の方法。
- 未使用供給原料が、植物油/脂肪、動物脂肪/油、魚の脂肪/油、遺伝子操作によって栽培された植物中に含有される脂肪、食品業界の再利用脂肪およびその混合物から選択される生物学的起源のものであることを特徴とする請求項1〜7のいずれか1項に記載の方法。
- 未使用供給原料が、菜種油、コルザ油(colza oil)、キャノーラ油、トール油、ヒマワリ油、大豆油、麻実油、オリーブ油、アマニ油、カラシ油、ヤシ油、ピーナッツ油、ヒマシ油、ココナッツ油、ラード、獣脂、鯨油もしくは乳汁中に含有される脂肪またはその混合物から選択されることを特徴とする請求項1〜8のいずれか1項に記載の方法。
- 未使用供給原料が、生物学的起源の供給原料および1種類/複数の炭化水素である供給原料を含むことを特徴とする請求項1〜9のいずれか1項に記載の方法。
- 水素化処理工程において、1種類以上の触媒床を含む触媒床系が使用されることを特徴とする請求項1〜10のいずれか1項に記載の方法。
- 水素化処理工程において、圧力が2〜15MPaの範囲で変動し、温度が200〜400℃のあいだで変動することを特徴とする請求項1〜11のいずれか1項に記載の方法。
- 異性化工程において、圧力が2〜15MPaの範囲で変動し、温度が200〜500℃で変動することを特徴とする請求項1〜12のいずれか1項に記載の方法。
- 水素化処理が水素化触媒の存在下で行なわれ、前記水素化触媒が周期律表の第VIIIおよび/またはVIB族の金属を含有することを特徴とする請求項1〜13のいずれか1項に記載の方法。
- 水素化処理触媒が、担持されたPd、Pt、Ni、NiMoまたはCoMo触媒であり、該担持体がアルミナおよび/またはシリカであることを特徴とする請求項14記載の方法。
- 分子篩を含む異性化触媒が異性化工程において使用されることを特徴とする請求項1〜15のいずれか1項に記載の方法。
- 異性化触媒が第VIII族元素の金属を含有することを特徴とする請求項16記載の方法。
- 異性化触媒がAl2O3またはSiO2を含有することを特徴とする請求項16または17記載の方法。
- 異性化触媒が、SAPO−11またはSAPO−41またはZSM−22またはZSM−23またはフェリエライトおよびPtまたはPdまたはNiおよびAl2O3またはSiO2を含有することを特徴とする請求項16〜18のいずれか1項に記載の方法。
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Also Published As
| Publication number | Publication date |
|---|---|
| PL1741767T3 (pl) | 2015-12-31 |
| CN101233212A (zh) | 2008-07-30 |
| BRPI0614043A2 (pt) | 2011-03-09 |
| PT1741767E (pt) | 2015-11-03 |
| ES2550244T5 (es) | 2023-06-08 |
| SI1741767T1 (sl) | 2016-02-29 |
| UA90906C2 (ru) | 2010-06-10 |
| FI1741767T4 (fi) | 2023-04-25 |
| HUE025943T2 (en) | 2016-05-30 |
| EP1741767A1 (en) | 2007-01-10 |
| DK1741767T3 (en) | 2015-10-26 |
| EP1741767B1 (en) | 2015-07-22 |
| BRPI0614043B1 (pt) | 2016-04-19 |
| JP2008545034A (ja) | 2008-12-11 |
| NZ565051A (en) | 2011-04-29 |
| EP2990462A1 (en) | 2016-03-02 |
| ZA200800056B (en) | 2008-12-31 |
| EP1741767B2 (en) | 2023-04-05 |
| ES2550244T3 (es) | 2015-11-05 |
| AP2645A (en) | 2013-04-17 |
| CN101233212B (zh) | 2012-10-03 |
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