In a process of gasifying solid fuel such as coal comprising the steps of contacting the solid fuel under a pressure of at least about 5 bars in a reaction chamber surrounded by a water-cooled zone, the reaction heat evaporating water in said zone, transferring the water vapor from said ...
A. evaporation B. sublimation C. condensation D. diffusion 相关知识点: 试题来源: 解析 B。固体直接变成气体的过程叫升华。选项 A 蒸发是液体变为气体;选项 C 冷凝是气体变为液体;选项 D 扩散是物质的一种混合方式。反馈 收藏
The process by which a solid turns directly into a gas is called___. A. sublimation B. evaporation C. condensation D. dissolution 相关知识点: 试题来源: 解析 A。解析:固体直接变成气体的过程叫升华。选项 B 蒸发是液体变成气体;选项 C 冷凝是气体变成液体;选项 D 溶解是固体在液体中分散。反馈...
A process for reducing the release of gas from dumped solid refuse comprises injecting into the solid refuse a liquid slurry formed by mixing a solid mixture comprising a) at least one siliceous component which is actually or latently hydraulic, b) at least one alkaline earth component based on...
Metal forming processes are classified according to the effective stresses into forming under (i) compressive, (ii) a combination of tensile and compressive, (iii) tensile, (iv) bending, and (v) shearing conditions. Important processes are upsetting, wire drawing, deep drawing, extruding, stretch...
专利名称：Process for gasifying solid fuels 发明人：RUDOLPH, PAUL,HAFKE, CARL,DR.,VIERRATH, HELMUT, DR.申请号：EP85200707.9 申请日：19850504 公开号：EP0167186A2 公开日：19860108 专利内容由知识产权出版社提供 专利附图：摘要：The solid fuels are gasified in a fixed bed under a pressure of ...
Dissolution is the process of a solid, liquid or gas being dispersed uniformly in a ___. A. solution B. solvent C. mixture D. compound 相关知识点: 试题来源: 解析 B。解析:溶解是指固体、液体或气体均匀地分散在溶剂中形成均匀混合物的过程。solution 是溶液;solvent 是溶剂;mixture 是混合物;...
A. Sublimation B. Evaporation C. Condensation D. Distillation 相关知识点: 试题来源: 解析 A。固体直接变为气体的过程称为升华(Sublimation)。“Evaporation”是蒸发,指液体变为气体;“Condensation”是冷凝,气体变为液体;“Distillation”是蒸馏。本题描述的是固体到气体,所以是升华,选 A。反馈 收藏 ...
Chemical Process Systems Engineering (cPSE) deals with the set of basic unit operations involved in turning raw materials into products via chemical and bio-chemical processes. In a wider definition, PSE is concerned with the optimization of decision-making process for creation and operation...
, more than 2,200 degrees Fahrenheit, decomposed the methane gas into hydrogen gas with no visible carbon dioxide emissions. Much to the team’s surprise, the process also enabled the capture of carbon molecules adhered to the substrate’s fibers in a highly desirable form of sol...