佑护德尔托拉王国的宝带被偷走，上面镶嵌的7颗宝石被藏在了德尔托拉最黑暗恐怖的地方。没有了宝带的佑护，邪恶势力暗影领主轻而易举攻占了德尔托拉王国。年仅16岁的里夫面临人生最大的挑战，他必须去那些黑暗恐怖之地找回7颗宝石：黄宝石、红宝石、猫眼石、天青石、绿宝石、紫水晶和钻石——当它们镶嵌在德尔托拉宝带上时，不但能庇佑后人登上德尔托拉的王位，还能保护人民免受暗影领主的残酷压迫。本书是“拯救德尔托拉”系列的第三部。虽然里夫、巴尔达和茉莉三人志趣并不相投，但经过之前的磨合变得越来越有默契。现在他们已经成功找到了黄宝
适读人群 ：高等院校化学工程与工艺、能源化工类本科生，能源化学工程、化学化工专业技术人员。
1.《化工专业英语》取材于相关专业领域的**英文原版书籍。针对高年级本科生的英语接受能力，对一些语法句法复杂、生僻专业词汇偏多的段落进行了简单化处理，使之在保留专业英语原有语境基础上按通用英文语法进行重新编排，让学生通过对专业英语的阅读，逐渐达到能够直接阅读专业英语书籍和外文文献的水平。
2..《化工专业英语》的编写分为纯英文和中文两大部分，中文与英文部分内容严格对照但又各自独立。在英语部分，所设计的专业词汇采用英文单词注解，让学生在英语思维模式下巩固专业英语水平和能力。中文部分对文中的汉语词汇进行了英文翻译。课文的附录部分包括全书的总词汇表、煤化工专业英语词汇、基本元素词汇表。
Part1 Coal Chemistry1
Unit1 Properties of Coal1
Reading Material 1 Situation of China’s Coal5
Exercise 18
第一部分煤化工10
第一单元煤的性质10
阅读材料1中国煤炭资源12
单元练习114
Unit2 Coal Gasification16
Reading Material 2 Upgrading Technology of LowGrade Coal20
Exercise 224
第二单元煤气化26
阅读材料2低阶煤加工技术28
单元练习230
Unit3 Direct Coal Liquefaction32
Reading Material 3Pollution Control and CO2 Capture35
Exercise 340
第三单元煤直接液化41
阅读材料3粉煤燃烧及污染控制43
单元练习346
Part 2Petrochemical47
Unit 4Crude Oil and Refinery Products47
Reading Material 4Atmospheric and Vacuum Crude Oil Distillation51
Exercise 454
第二部分石油化工56
第四单元石油及石油炼制产品56
阅读材料4常减压蒸馏59
单元练习461
Unit 5Fluid Catalytic Cracking62
Reading Material 5Catalytic Reforming66
Exercise 569
第五单元流化催化裂化70
阅读材料5催化重整73
单元练习574
Unit 6Hydrotreating Process76
Reading Material 6Distillate Hydrocracking80
Exercise 684
第六单元加氢处理工艺86
阅读材料6馏分油加氢裂化88
单元练习690
Part 3Natural Gas and C1 Chemistry91
Unit 7Natural Gas Processing and Transportation91
Reading Material 7Natural Gas Hydrate95
Exercise 799
第三部分天然气及C1化学101
第七单元天然气加工及运输101
阅读材料7天然气水合物104
单元练习7106
Unit 8FischerTropsch Synthesis107
Reading Material 8Natural Gas in China111
Exercise 8114
第八单元费托合成116
阅读材料8中国天然气现状118
单元练习8121
Unit 9Methanol Production and Application122
Reading Material 9Atmospheric Pollution and Greenhouse Effect125
Exercise 9129
第九单元甲醇生产及应用131
阅读材料9大气污染与温室效应133
单元练习9136
Part 4New Energy137
Unit 10Renewable Energy137
Reading Material 10New Energy Vehicle141
Exercise 10145
第四部分新能源147
第十单元可再生能源147
阅读材料10新能源汽车149
单元练习10151
Unit 11Biofuel152
Reading Material 11Waste Biomass Sources156
Exercise 11159
第十一单元生物燃料160
阅读材料11废弃生物质资源163
单元练习11165
Unit 12Fuel Cell166
Reading Material 12Hydrogen Energy170
Exercise 12173
第十二单元燃料电池175
阅读材料12氢能178
单元练习12180
Appendix(附录)181
Appendix 1Vocabulary181
Appendix 2Coal Chemical Vocabulary194
Appendix 3Petrochemical Vocabulary196
Reference203
Gasification process
Coal undergoes a series of chemical and physical changes in a gasification process. At drying stage when coal is heated at temperature higher than 100 ℃, most of the moisture is driven out. At devolatilization stage when coal temperature is increased to 500 ℃, significant devolatilization begins. More volatile materials are released at this stage. Liable bonds between the aromatic clusters in coal structure are cleaved, generating much smaller fragments. Fragments with low molecular weights will vaporize and escape from the coal particle to constitute light gases and tar. At gasification stage when coal temperature is higher than 900 ℃, maximum volatile yield occurs. More gas products were produced in the presence of CO, CO2, CH4, H2 and H2O. The yield and composition of volatile compounds depend on the heating rate and final temperature. Volatile yield at rapid-heating rates is normally 20-40% higher than that at slow-heating rates.
Gasifier
According to the fluidization regime, coal gasifiers are generally classified as moving bed, fluidized bed and entrained flow bed.
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